Technical Catalogue Redline

GE Consumer & IndustrialPower Protection

Technical Redline ED.03

Modular DIN-rail devicesand residential enclosuresJust feel protected

GE imagination at work

ElfaPlus

T1.1

T1

T2

T3

T4

Circuit Protection

People Protection

Add-on Devices

Comfort Functions

Redline

T1.2T1.2T1.2T1.2T1.3T1.6T1.6T1.7T1.8

T1.10

T1.14T1.16T1.26T1.29T1.31T1.32T1.32T1.32T1.32T1.45T1.46T1.46T1.48T1.50

Line protection using MCB’sProtection against overloadsProtection of phase conductorProtection of neutral conductorProtection against short-circuitTransformers in parallelLet-through energyMaximum protected cable length in the event of short-circuit (Icc min)Characteristics according to EN/IEC 60898Characteristics according to EN/IEC 60947-2

DefinitionsSelectivityAssociation (back-up protection)Use in DCInfluence of ambient air temperature on the rated currentTripping current as a function of the frequencyPower lossesLimitation curves let-through energy I2tLimitation curves peak current IpTripping curves according to EN/IEC 60898ApplicationSelective circuit breaker S90Text for specifiersDimensional drawings

Miniature circuit breakersTechnical Data

Redline

Protection of phase conductorProtection of overcurrent shall be provided for allphase conductors; it shall cause the disconnectionof the conductor in which the overcurrent isdetected, but not necessarily of other live conductorexcept in the following cases:In TT or TN systems, for circuits supplied betweenphases and in which the neutral conductor is notdistributed, overcurrent detection need to beprovided for one of the phase conductors,provided that the following conditions aresimultaneously fulfilled:- There is, in the same circuit or on the supply side

a differential protection intended to causedisconnection of all the phase conductors;

- The neutral conductor is not distributed from anartificial neutral point of the circuit situated on theload side of the differential protective device.

In IT systems it is mandatory to protect all thephase conductors.

Protection of neutral conductorIT systemIn IT systems it is strongly recommended that the neutralconductor should not be distributed. However, when theneutral conductor is distributed, it is generally necessaryto provide overcurrent detection for the neutral conductorof every circuit, which will cause the disconnection of alllive conductors of the corresponding circuit, including theneutral conductor. This measure is not necessary if:- The particular neutral conductor is effectively

protected against short-circuit by a prospectivedevice placed on the supply side.

- or if the particular circuit is protected by a RCD witha rated residual current not exceeding 0,15 times thecurrent-carrying of the corresponding neutralconductor. This device shall disconnect all the liveconductors of the corresponding circuit, includingthe neutral conductor.

TT & TN systemsWhere the cross sectional area of the neutral conductoris at least equal or equivalent to that of the phaseconductors, it is not neccesary to provide overcurrentdetection for the neutral conductor or a disconnectingdevice for that conductor. Where the cross sectionalarea of the neutral conductor is less than that of thephase conductor, it is neccesary to provide overcurrentdetection for the neutral conductor , appropiate to thecross-sectional area of that conductor; this connectionshall cause the disconnection of the phase conductor,but not neccesarily of the neutral conductor.

T1

Line protection by means of MCB’sProtective devices shall be capable of breaking anyovercurrent up to and including the prospectiveshort-circuit current at the point where the device isinstalled. One of the protective devices complyingwith those conditions is the MCB.

Protection against overloadsAccording to IEC 60364-4-43 protective devicesshall be provided to break any overload currentflowing in the circuit conductors before such acurrent could cause a temperature rise detrimentalto insulation, joints or surrounding goods to theconductors.

The operating characteristics of a deviceprotecting a cable against overload shall satisfythe two following conditions:

lB ln lzl2 1.45 lz

IB= Current for which the circuit is designed.IZ= Continuous current carrying capacity of the cable.In= Nominal current of the protective device.I2= Current ensuring effective operation of the

protective device.

In and I2 are values provided by the manufacturer ofthe protective device. Calculation of the cable crosssection shall be done following the national wiringregulations as well as the IEC 60364-5-523 standard.

The maximum current admissible by the conductor(Iz) depends of following factors:1. Conductor cross-section.2. Insulation material.3. Composition of the conductor.4. Ambient temperature.5. Emplacement and canalisation.

T1.2

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Circuitcharacteristic

Protectivedevicecharacteristic

T1

T1.3

Technical Data

However, overcurrent detection does not need to beprovided for the neutral conductor if the following twoconditions are simultaneously fulfilled:- The neutral conductor is protected against short-

circuit by the protective device for the phaseconductors of the circuit, and

- The maximum current likely to traverse the neutralconductor is, in normal service, clearly less than thevalue of the current-carrying capacity of thatconductor.

SN = Cross-section of neutral conductorSF = Cross-section of phase conductorP = Protected poleRCD= Residual current deviceN = Neutral pole

Protection against short-circuitAccording to IEC 60364 protective devices shall beprovided to break any short-circuit current flowingin the circuit conductors before such a currentcould cause danger due to thermal and mechanicaleffects produced in conductors and connections. To consider that an installation is well protectedagainst short-circuits, it is required that the protectivedevice complies with the following conditions:

- The breaking capacity shall not be less than theprospective short-circuit current at the place of itsinstallation.

Icu Icc

- Let-through energy I2t smaller than admissibleenergy of the cable.

- According to IEC 60364-4-473 there are somecases where the omission of devices for protectionagainst overload is recommended for circuitssupplying current-used equipment whereunexpected opening of the circuit could causedanger.Examples of such a cases are:- Excitation circuit of rotating machines.- Supply circuit of lifting magnets.- Secondary circuits of current transformers.

As in those cases the Iu>Iz, it is necessary to verifythe short-circuit value at the point of the installationto ensure the protection (Icc min)

SystemTN-C , PEN conductor TN-S separate PE & Nconductors TT

IT

SN=SF

III+N3P3PN

3PN+RCD4P3PN+RCD

SN<SF

III+N3P3PN

3PN+RCD4P

III–3P

3P+RCD3P

I+NPPN

PN+RCD2P

II–2P

2P+RCD2P

Calculation of IccThe value of the short-circuit current flowing atthe end of a cable depends on the short-circuitcurrent flowing at the begining of the cable(transformer terminals), the cross section aswell as its length.

Transformer powerkVA

250315400500630800

100012501600200025003150

Voltage Uccin %

44444

4.55

5.56

6.577

InA rms

352443563704887

1126140817602253281635204435

Icc0kA rms

8.710.913.817.121.624.1

2730.435.540.546.657.6

Icc: Maximum value of the short-circuitcurrent in that point.

Icu: Short-circuit capacity of the protectivedevice.

Short-circuit current at the transformer terminals (Icc0)Three phase oil transformer - 400V

T1.4

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Calculation of the short-circuit current in function of:Icc0, cross-section and length of the conductor.The following table provides information to calculateapproximately the short-circuit current at a relevantpoint of the installation

- Values shorter than 0.8m or longer than 1 km arenot considered.

- All values are for voltage 400V.

Correction coefficient

ExampleCable with cross section 95 mm2 Cu, 45 m length, and short-circuit current at the transformer terminals of 30 kA. Estimated short-circuit current of 12 kAat the end of the cable.

T1

Redline

230V660V

0.581.65

1.32.13.45.18.4132130425980101110130162195211234240160202220260324240304330390486

1.62.64.26.4111726375374101127138163203244265294301201254276327407302381415490610

3.15.18.21221335172103144195246268317394474514571584390493536633789585739804950

6.21016254166103144205288390493536633789948

781986

7.81321315283130182259363493623677800996

986

9.416253863100157219314439596752818967

1321345184135211295422590801

16264264106170265371530742

315182123205329514719

Line protection - Copper conductormm2 Length of the line in m

11111110109.89.39.08.68.27.56.75.54.43.53.02.41.70.9

8.88.78.68.58.38.17.87.67.37.06.55.94.94.13.32.82.31.70.9

4.74.74.74.64.64.54.44.44.34.24.03.73.32.92.52.21.91.40.8

2.42.42.42.42.42.42.32.32.32.32.22.12.01.81.71.51.41.10.7

1.91.91.91.91.91.91.91.91.81.81.81.71.61.51.41.31.21.00.7

1.61.61.61.61.61.61.61.61.51.51.51.51.41.31.21.21.10.90.6

1.21.21.21.21.21.21.21.21.21.21.11.11.11.01.00.90.90.80.5

1.01.01.01.00.90.90.90.90.90.90.90.90.90.80.80.80.70.70.5

0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.40.40.40.3

Icco (kA)

1.5 2.546101625355070951201501852403004005006252x952x1202x1502x1852x2403x953x1203x1503x1853x240

0.81.01.21.41.61.71.81.21.51.61.92.41.82.32.52.93.6

0.91.01.21.51.71.92.12.11.41.82.02.32.92.22.73.03.54.4

0.81.01.11.31.72.02.22.42.51.62.12.32.73.32.53.13.44.05.0

0.91.21.31.51.92.22.42.72.81.82.32.53.03.72.83.53.84.55.6

1.01.31.41.72.12.52.73.03.12.12.62.83.34.23.13.94.25.06.2

1.01.42.02.52.73.23.94.75.15.75.83.94.95.46.37.95.97.48.09.512

1.11.52.23.04.15.25.66.78.3101112128.2101113171216172025

0.81.31.82.63.64.96.26.88.010121314159.9121416201519202430

1.01.62.23.14.46.07.58.29.7121416171812151619241823252936

0.81.32.13.04.25.98.0101113161921232416202226322430333949

1.11.72.63.75.37.410131416202426293020252833413038414961

0.81.22.13.35.17.21014202527323947515758394954637959748095118

1.01.62.54.16.6101421293949546379951031141177899107127158117148161190237

1.32.13.15.28.3131826364962688010012013014414799125135160199148187203240299

0.91.62.53.86.3101622314460758297120145157174178119150164193241179226245290361

100 908070605040353025201510754321

9485766758493934292520159.97.05.04.03.02.01.0

9384766757483934292520159.97.05.04.03.02.01.0

9284756657483934292420159.97.05.04.03.02.01.0

9183746657483934292420159.97.05.04.03.02.01.0

9082746556473834292420159.96.95.04.03.02.01.0

8376696154453733282419159.86.95.04.03.02.01.0

7065605448413430272318149.66.84.93.93.02.01.0

6662575246403330262218149.56.84.93.93.02.01.0

6258544944383229252218149.46.74.93.92.92.01.0

5552484440353027242117139.26.64.83.92.92.01.0

4947444137332826232017139.16.54.83.82.92.01.0

3332312927252221191714128.36.14.53.72.81.91.0

20191918181715151412119.47.15.54.23.42.71.91.0

161616151514131312111097543321

1414141313121211119.99.07.86.24.93.83.22.51.80.9

Voltage K

Icc

at th

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Short-circuit current at the end of the cable

T1.5

Technical Data

T1

Line protection - Aluminium conductormm2 Length of the line

- Values shorter than 0.8m or longer than 1 km arenot considered.

- All values are for voltage 400V.

Correction coefficient

ExampleCable with cross section 150 mm2 Al, 65 m length, and short-circuit current at the transformer terminals of 10 kA. Estimated short-circuit current of 5.5 kAat the end of the cable.

4.74.74.74.64.64.54.44.44.34.24.03.73.32.92.52.21.91.40.8

2.42.42.42.42.42.42.32.32.32.32.22.12.01.81.71.51.41.10.7

1.91.91.91.91.91.91.91.91.81.81.81.71.61.51.41.31.21.00.7

1.61.61.61.61.61.61.61.61.51.51.51.51.41.31.21.21.10.90.6

1.21.21.21.21.21.21.21.21.21.21.11.11.11.01.00.90.90.80.5

1.01.01.01.00.90.90.90.90.90.90.90.90.90.80.80.80.70.70.5

0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.40.40.40.3

0.91.21.41.7

0.91.01.21.51.11.41.51.82.2

0.91.11.41.72.00.91.11.21.41.81.31.71.82.22.7

0.81.01.21.61.92.31.01.31.41.72.11.51.92.12.53.1

0.91.21.41.82.22.61.11.41.61.92.31.72.22.42.83.5

0.80.91.01.31.52.02.42.91.31.61.82.12.61.92.42.63.13.9

0.91.21.51.72.02.42.93.84.65.52.43.13.33.94.93.64.65.05.97.3

0.91.31.92.53.23.54.15.26.28.09.6125.16.47.08.3107.69.7111215

0.81.11.62.33.13.94.25.06.27.49.512146.17.78.49.9129.212131519

1.01.41.92.73.74.75.16.07.59.01214177.49.31012151114151822

0.81.31.82.63.75.06.36.88.110121619239.9131416201519202430

1.11.62.33.34.66.27.98.610131519232812161720251924263038

1.32.03.24.56.48.912151720242938465524313339493646505973

1.01.52.54.16.48.91318243133394959769111048616779987392100118147

0.81.31.93.25.28.111.316.122.530.63942506274951151396177849912492116126149186

1.01.62.33.96.29.71419273747516075901151391687493102120149111140152180224

1.01.32.13.15.28.4131826375063688110012115518722699126137161201149188205242301

3.83.25.17.6132032456489121153166197245294378455550242306333393490363459499590734

4.86.4101525416489127178242306333393490588756911

484612665786979727918998

5.88.11319325281113161225306387420497618743954

612773840993

918

7.99.71623396297136195272370467508600747898

739934

9.91321315284131183262366497628683807

994

1916263966105164230329460625789858

325176127204319446637892

1.5 2.546101625355070951201501852403004005006252x952x1202x1502x1852x2403x953x1203x1503x1853x240

100 908070605040353025201510754321

9485766758493934292520159.97.05.04.03.02.01.0

9384766757483934292520159.97.05.04.03.02.01.0

9284756657483934292420159.97.05.04.03.02.01.0

9183746657483934292420159.97.05.04.03.02.01.0

9082746556473834292420159.96.95.04.03.02.01.0

8376696154453733282419159.86.95.04.03.02.01.0

7065605448413430272318149.66.84.93.93.02.01.0

6662575246403330262218149.56.84.93.93.02.01.0

6258544944383229252218149.46.74.93.92.92.01.0

5552484440353027242117139.26.64.83.92.92.01.0

4947444137332826232017139.16.54.83.82.92.01.0

3332312927252221191714128.36.14.53.72.81.91.0

20191918181715151412119.47.15.54.23.42.71.91.0

161616151514131312111097543321

1414141313121211119.99.07.86.24.93.83.22.51.80.9

11111110109.89.39.08.68.27.56.75.54.43.53.02.41.70.9

8.88.78.68.58.38.17.87.67.37.06.55.94.94.13.32.82.31.70.9

1.91.62.63.96.61116233346627986101126152195235283125158172203253187237257304379

Icco (kA)

Icc

at th

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230V660V

0.581.65

Voltage K

Short-circuit current at the end of the cable

T1.6

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Transformers in parallelIn the case of several transformers in parallel thereare some points of the installation where the Icc isthe sum of the short-circuit currents provided byeach transformer .

The short-circuit capacity of the protective devicesshall be calculated taking into consideration thefollowing criteria:

Short-circuit in A: Icu1 Icc2 + Icc3Short-circuit in F: Icu2 Icc2Short-circuit in D: Icu4 Icc1 + Icc2 + Icc3

Let-through energyThe standard IEC 60364 describes that the currentlimiting of the conductors (K2S2) shall be equal orgreater than the let-throught energy (I2t) quoted bythe protective device. The K coefficient depends onthe conductor insulation.S is the cross section of the conductor.

I2t K2S2

T1

Redline

Copper conductorInsulation

K=

Cross section mm2

1.52.54610162535507095120150185240

PVC

115

30832124761 3233 3868 26616 20133 06364 803119 356190 440297 563452 626761 760

Rubber

135

411142926561 8234 66611 39122 32645 56389 303164 481262 440410 063623 7511 049 760

PolyethyleneXLPE

146

481333417672 1325 45713 32326 11253 290104 448192 377306 950479 610729 5401 227 802

Maximum admissible value K2S2 x 103

Aluminium conductorInsulation

K=

Cross section mm2

10162535507095120150185240

PVC

74

5481 4023 4236 70813 69026 83249 42178 854123 210187 416315 418

Rubber

87

7571 9384 7319 27218 92337 08868 310108 994170 303259 049435 974

PolyethyleneXLPE

94

8842 2625 52310 82422 09043 29679 745127 238198 810302 412508 954

Maximum admissible value K2S2 x 103

T1.7

Technical Data

T1

Maximum protected cable length in the event ofshort-circuit (Icc minimum)

The following values are applicable in case that theprotective device does not exist or is over-rated.They are calculated according to the formula:

0.8 . U . SIcc= –––––––––––––––––––––––––––––– . K

1.5 . . 2 . L

U: Voltage 400V0,8: Reduction coefficient due to impedancesS: Conductor cross section

: Cu resistivity: 0.025 mm2/mL: Conductor lengthK: Correction coeffecient

Example Network 3x400+N with a copper conductor of95mm2 cross-section and using as a protectiondevice a MCB C63. Maximum cable length:Lmax= 894x0.58x0.5=259m

Correction coefficients

It is possible to determinate the maximumcable length protected in the event of short-circuitcurrent in function of:- The nominal current - The nominal voltage - The conductor characteristic - The magnetic tripping characteristic of the

protective deviceThe short-circuit current at any point of theinstallation shall be high enough to disconnectthe protective device.

To ensure the MCB disconnection, we needed totake into consideration the following table

100

365995148207296415563711773914113813681481164616841126142215461827

1689

125

4776119166237332450569618731910109411851317134790111381237143714621820135117071855

160

599313018525935244448357171185592610291052704889966114214221056133314491713

250

83119166225284309365455547593658673450569618731910676853928096365

400

104141178193228284342370412421281356386457569422533580685853

630

113123145181217235261267179226245290361268339368435542

800

114142171185206210141178193228284211267290243427

1000

114137148165168113142155183228169213232274341

1250

119132135

114124146182135171186219273

1600

105

114142106133145171213

2000

114

107116137171

S mm2

For network 3x400 V without N, Tripping characteristic C (Im: 10 x In)

Maximum protected cable length in case of short-circuit

Curve BCurve DCurve Im

K1 x 2x 0.5x 10/lm

AluminiumK3 x 0.62 1

2345

K5 x 1.00x 2.00x 2.65x 3.00x 3.20

Tripping characteristic Conductor Number of cables in parallel

Maximum protected length (m) for Cu conductor63

243856941502353294706588941129122714501806

1787

80

3044741191852593705197048899661142142217091852

140717781932

50

3047711191902964155938301126142215461827

40

223759891482373705197411037140717781932

32

28467411118529646364892612961759

25

36599514223737959383011851659

20

447411917829647474110371481

16

569314822237059392612961852

10

891482373565939481481

6

1482373565939481481

4

2223705938891481

2

44474111851778

1

8891481

0,5

1778

In (A)

1.5 2.546101625355070951201501852403004005006252x952x1202x1502x1852x2403x953x1203x1503x1853x240

2 x 230 V3 x 400V + N230V Phase-N3 x 400V + N/2

K2 x 0.58x 0.58x 0.58x 0.39

Voltage

120150185240300

K4 x 0.90x 0.85x 0.80x 0.75x 0.72

Cross section>120 mm2

Redline

T1

T1.8

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Characteristics according to EN/IEC 60898Miniature Circuit Breakers are intended for theprotection of wiring installations against bothoverloads and short-circuits in domestic orcommercial wiring installations where operation ispossible by uninstructed people.

Tripping characteristic curves B, C and D

Magnetic releaseAn electromagnet with plunger ensures instantaneoustripping in the event of short-circuit. The standarddistinguishes three different types, following thecurrent for instantaneous release: type B,C,D.

** if In 10A, t < 8s

Thermal releaseThe release is initiated by a bimetal strip in the eventof overload. The standard defines the range ofreleases for specific overload values. Referenceambient temperature is 30°C.

Rated short-circuit breaking capacity (Icn)Is the value of the short-circuit that the MCB iscapable of withstanding in the following test ofsequence of operations: O-t-CO

After the test the MCB is capable , withoutmaintenance to withstand a dielectric strengthtest at a test voltage of 900V. Moreover the MCBshall be capable of tripping when loaded with2.8 In within the time corresponding to 2.55 Inbut greater than 0.1s.

Service short-circuit breaking capacity (Ics)Is the value of the short-circuit that the MCB iscapable of withstanding in the following test ofsequence of operations: O-t-CO-t-CO

After the test the MCB is capable , withoutmaintenance to withstand a dielectric strength testat a test voltage of 1 500V. Moreover the MCB shallnot trip when a current of 0.96 In. The MCB shalltrip within 1h when current is 1.6 In.

O - Represents an opening operationCO - Represents a closing operation followed

by an automatic opening.t - Represents the time interval between two

successive short-circuit operations: 3 minutes.

The relation between the Rated short-circuitcapacity (Icn) and the Rated service short-circuitbreaking capacity (Ics) shall be as follows:

lcn (A)

6000> 6000

10000> 10000

Ics (A)

60000.75 lcn min. 6000

0.75 lcn min. 7500

Test current

1.13 x ln

1.45 x ln

2.55 x ln

Tripping time

t 1h (ln 63A)t 2h (ln > 63A)

t < 1h (ln 63A)t < 2h (ln > 63A)

1s < t < 60s (ln 32A)1 s < t < 120s (ln > 32A)

Testcurrent3 x ln

5 x ln

5 x ln

10 x ln

10 x ln

20 x ln

Trippingtime

0.1 < t < 45s (In 32A)0.1 < t < 90s (In > 32A)

t < 0.1s

0.1 < t < 15s (In 32A)0.1 < t < 30s (In > 32A)

t < 0.1s

0.1 < t < 4s(**) (In 32A)0.1 < t < 8s (In > 32A)

t < 0.1s

Applications

Only for resistive loads such as:- electrical heating- water heater- stovesUsual loads such as:- lighting- socket outlets- small motorsControl and protection ofcircuits having importanttransient inrush currents(large motors)

lcn (A)

B

C

D

T1

T1.9

Technical Data

Example: 2P MCB C characteristic 16A

Use of an MCB

Information on product according to EN/IEC 60898

Trade mark Approvals on shoulder

Rated current proceeded by thesymbol of the tripping curve

Rated short-circuitbreaking capacity Icn

Contact position indicator

Toggle

Access to the mechanismfor extensions

Bistable clip

Rail for terminal indicator

Bifunctional terminal for connectivitythrough busbars/wires

Safety terminals to avoidincorrect introduction of wires

Approvals on front

Technical data accordingto IEC 60947-2

Rated voltage

Product name

Electric diagram

Catalogue number

ON-OFF indicator

T1.10

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Characteristics according to EN/IEC 60947-2Miniature Circuit Breakers are intended for theprotection of the lines against both overloads andshort-circuits in industrial wiring installations wherenormally operation is done by instructed people.

Tripping characteristic curves B, C, D and Z

Magnetic releaseAn electromagnet with plunger ensuresinstantaneous tripping in the event of short-circuit.The standard leaves the calibration of magneticrelease to the manufacturer’s discretion.

GE offers instantaneous tripping ranges:- Z: 2.5 ln- B: 4 ln- C: 8.5 In (7.5 In for 63A)- D and M: 14 ln

Thermal releaseThe release is initiated by a bimetal strip in the eventof overload. The standard defines the range ofrelease for two special overload values. Reference ambient temperature is:• 50°C for G60 and G100 (B, C, D)• 40°C for GT10 and GT25 (B, C, D)• 40°C for EP100 and EP250 (Z)

Tripping characteristic curve K

Magnetic releaseAn electromagnet with plunger ensuresinstantaneous tripping in the event of short-circuit.The standard leaves the calibration of magneticrelease to the manufacturer’s discretion.

GE offers instantaneous tripping ranges:- K: 10 lnMotors starting I = 6 In, tripping > 2s.

Thermal releaseThe release is initiated by a bimetal strip in the eventof overload. The standard defines the range ofrelease for two special overload values. Reference ambient temperature is:• 45°C for EP60 and EP100 (K)

32 2.5(Z) 5 10 20

1.301.051

0.01

0.1

1

10

3600

120

60

4(B) 8.5(C) 14(D and M) 8 12

1.451.131

0.01

0.1

2

10

3600

120

60

6 10(K)

Test current

1.05 x ln

1.30 x ln

Tripping time

t 1h (ln 63A)t 2h (ln > 63A)

t < 1h (ln 63A)t < 2h (ln > 63A)

Test current

1.13 x ln

1.45 x ln

Tripping time

t 1h (ln 63A)t 2h (ln > 63A)

t < 1h (ln 63A)t < 2h (ln > 63A)

T1

T1.11

Technical Data

Short-circuit test Rated ultimate short-circuit breaking capacity (Icu)Is the value of the short-circuit that the MCB iscapable of withstanding in the following test ofsequence of operations: O-t-CO

After the test the MCB is capable, withoutmaintenance, to withstand a dielectric strength testat a test voltage of 1000V. Moreover the MCB shallbe capable of tripping when loaded with 2,5 Inwithin the time corresponding to 2 In but greaterthan 0.1s.

Rated service short-circuit breaking capacity (Ics)Is the value of the short-circuit that the MCB iscapable of withstanding in the following test ofsequence of operations: O-t-CO-t-CO

After the test the MCB is capable, withoutmaintenance, to withstand a dielectric strength testat a test voltage of twice its rated insulation voltagewith a minimum of 1000V. A verification of theoverload releases on In and moreover the MCB shalltrip within 1h when current is 1.45 In (for In < 63A) and 2h (for In > 63A).

O - Represents an opening operationCO - Represents a closing operation followed by

an automatic opening.t - Represents the time interval between two

successive short-circuit operations: 3 minutes.

Category A: Without a short-time withstand currentrating.

Tripping characteristic curvesand their applicationsB: Protection of generators, long distance cables,

resistive loads, people protection in TN systems.C: General purpose, resistive and inductive loads.D: High inductive loads, transformers LV/LV with

high peak current.K: Motors, pumps, fans, transformers, lamps

groups, avoiding nuisance tripping.Z: Protection of electronic loads (semi conductors

etc.) and secundary measurement circuits, longdistance cables allowing cost saving withsmaller section.

Circuits feeding motors

Advantages of K-curve protection

Curve K (EN/IEC 60947-2) versus B, C, D (EN/IEC 60898)

Utilizationcategory

A

B

Application with respect to selectivity

Circuit breakers not specifically intended for selectivity under short-circuit conditions with respect to other short-circuit protective devicesin series on the load side, i.e. without an intentional short-time delayprovided for selectivity under short-circuit conditions, and thereforewithout a short-time withstand current rating according to 4.3.5.4

Circuit breakers specifically intended for selectivity under short-circuit conditions with respect to other short-circuit protective

devices in series on the load side, i.e. without an intentional short-time delay (which may be adjustable), provided for selectivity

under short-circuit conditions. Such circuit-breakers have a short-time withstand current rating according to 4.3.5.4

Thermal tripping1.13 In - 1.45 In

Curve B,C,D: 30°CCurve K: 45°C

K curve avoids nuisancetripping at the starting ofmotors (typical peak 6 In)for a minimum of 2 seconds. B,C and D don’t garanteenuisance tripping.

Magnetic tripping8 In - 12 In

I1 = 1.13 x In I2 = 1.45 x In

120

60

2

1

2

1

0.1

0.04

0.02

0.011 1.5 3 5 8

8

10 203 5 10 20

30

B C D

K12

Seco

nds

Min

utes

T1.12

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T1

Redline

Example: EP250 1P 20A 5 to 10 Iu

Use of an MCB

Information on product according to EN/IEC 60947-2

Trademark

Service category andcalibration temperature


Toggle

Circuit indicator

Access to the mechanismfor extensions

Rated short-circuitbreaking capacity Icu/Ics

Tripping curve

Rated current

IEC 60947-2 standard

Product name

Catalogue number

Rated voltage

Electrical diagram

T1

T1.13

Technical Data

ACCESS TO THE MECHANISM FOR EXTENSIONSConnection of the extensions.It is possible to couple any auxiliary contact, shunttrip, undervoltage release or motor driver either onthe right or the left hand side, following the stack-onconfiguration of the extensions in page T3.14

TOGGLETo switch the MCB ON or OFF

CONTACT POSITION INDICATORPrinting on the toggle to provide information of thereal contact position.

O-OFFContacts in openposition. Ensure adistance betweencontacts > 4mm.

I-ONContacts in closedposition. Ensurecontinuity in themain circuit.

T1.14

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T1

Redline

Definitions related to MCB’sMCB= Miniature Circuit Breakers

Short-circuit (making and breaking) capacityAlternating component of the prospective current,expressed by its r.m.s. value, which the circuit-breaker is designed to make, to carry for its openingtime and to break under specified conditions.

Ultimate or rated short-circuit breaking capacity (Icn - EN/IEC 60898) A breaking capacity for which the prescribed condi-tions, according to a specified test sequence donot include the capability of the MCB to carry 0.96times its rated current for the conventional time.

Ultimate short-circuit breaking capacity (Icu - EN/IEC 60947-2) A breaking capacity for which the prescribed condi-tions, according to a specified test sequence donot include the capability of the MCB to carry itsrated current for the conventional time.

Service short-circuit breaking capacity (Ics - EN/IEC 60898) A breaking capacity for which the prescribedconditions according to a specified test sequenceinclude the capability of the MCB to carry 0.96times its rated current for the conventional time.

Service short-circuit breaking capacity (Ics - EN/IEC 60947-2) A breaking capacity for which the prescribedconditions according to a specified test sequenceinclude the capability of the MCB to carry its ratedcurrent for the conventional time.

Prospective currentThe current that would flow in the circuit, if eachmain current path of the MCB were replaced by aconductor of negligible impedance.

Conventional non-tripping current (Int)A specified value of current which the circuitbreaker is capable of carrying for a specified timewithout tripping.

Conventional tripping current (It)A specified value of current which causes the circuitbreaker to trip within a specified time.

Open position The position in which the predetermined clearancebetween open contacts in the main circuit of theMCB is secured.

Closed positionThe position in which the predetermined continuityof the main circuit of the MCB is secured.

Maximum prospective peak current (Ip)The prospective peak current when the initiation ofthe current takes place at the instant which leads tothe highest possible value.

T1.15

Technical Data

T1

Notes

Redline

T1

T1.16

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SelectivityAn installation with some protective devices inseries (a protective device must be placed at thepoint where a reduction of the cross sectional areaof the conductors or another change causesmodification in the characteristics of the installation)is considered as selective when, in the event ofshort-circuit, the installation is interrupted only bythe device which is immediately upstream of thefault point. Selectivity is ensured when thecharacteristic time/current of the upstream MCB (A)is above the characteristic time /current of thedownstream MCB (B). The let-through energy (I2t) of the downstreamprotective device shall be lower than the one of theupstream protective device. Selectivity may be totalor partial.

Total selectivitySelectivity is total in the event of a short-circuitfault and only disconnects the protective device Bimmediately upstream of the fault point.

Partial selectivitySelectivity is partial when the no disconnection ofthe protective device (A) is ensured only up to acertain level of the current.In figure below is shown that selectivity is total upto the point of overlapping curves. From this pointtotal selectivity can not be assured and selectivitycurves based on tests by the manufacturer shouldbe consulted.

Disconnects B only Both devices could trip

Consult selectivity tables by manufacturer

MCB’s UpstreamCurve C

G60-G100-GT25 Hti S90

T1

T1.17

Technical Data

Selectivity - Upstream MCB's / Downstream MCB's C or G & RCBO's DM

ExampleA combination of an MCB C20 with an upstreamMCB C100 guarantees selectivity up to a short-circuit level of 5 kA.


G60-G100-GT25 Hti S90

Downstream Curve B

C45C60 DM60DM100 (1)

In6A10A16A20A25A32A40A

10A0.07

------

16A0.10

------

20A0.150.15

-----

25A0.180.18

-----

32A0.230.230.23

----

40A0.270.270.270.270.27

--

50A0.350.350.350.350.350.35

-

63A0.450.450.450.450.450.45

-

80ATT

4.04.03.53.5-

100ATTTT

1.51.51.5

125ATTTT

1.51.51.5

10-100ATTTTTTT


G60-G100-GT25 Hti S90

Downstream Curve B

G60G100G250DME60DME100

In6A10A16A20A25A32A40A50A63A

10A0.07

--------

16A0.10

--------

20A0.150.15

-------

25A0.180.18

-------

32A0.230.230.23

------

40A0.270.270.270.270.270.27

---

50A0.350.350.350.350.350.35

---

63A0.450.450.450.450.450.45

---

80AT

6.04.04.03.53.51.6--

100ATT

6.06.06.06.05.0--

125ATT

6.06.06.06.05.0--

10-100ATTTTTTTTT


G60-G100-GT25 Hti S90

Downstream Curve C

C45C60 DM60DM100 (2)

In2A3A4A6A10A16A20A25A32A40A

10A0.070.070.070.07

------

16A0.100.100.100.10

------

20A0.150.150.150.150.15

-----

25A0.180.180.180.180.18

-----

32A0.230.230.230.230.230.23

----

40A0.270.270.270.270.270.270.270.27

--

50A0.350.350.350.350.350.350.350.350.35

-

63A0.450.450.450.450.450.450.450.450.450.45

80ATTT

4.54.52.02.01.51.5-

100ATTTTT

5.05.04.52.32.3

125ATTTTT

5.05.04.52.32.3

10-100ATTTTTTTTTT

Downstream Curve C

G30G45G60G100GT25DME60DME100

In0.5A1A2A3A4A6A10A16A20A25A32A40A50A63A

10A0.070.070.070.070.070.07

--------

16A0.100.100.100.100.100.10

--------

20A0.150.150.150.150.150.150.15

-------

25A0.180.180.180.180.180.180.18

-------

32A0.230.230.230.230.230.230.230.23

------

40A0.270.270.270.270.270.270.270.270.270.27

----

50A0.350.350.350.350.350.350.350.350.350.350.35

---

63A0.450.450.450.450.450.450.450.450.450.450.450.45

--

80ATTT

9.09.04.54.52.02.01.51.5---

100ATTTT

6.06.06.06.05.04.52.32.3--

125ATTTT

6.06.06.06.05.04.52.32.3--

10-100ATTTTTTTTTTTTTT

(1) Icc limited to 6 kA for C60, DM60, DM100(2) Icc limited to 10 kA for DM100T = Total : selective untill the Icu of the downstream device

Redline

T1

T1.18

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Selectivity - Upstream Fuses gL-gG / Downstream MCB's G60

ExampleA combination of an MCB G62 C20 with anupstream fuse 80A guarantees selectivity up to ashort-circuit level of 4.6 kA.

Fuses

Downstream Curve B

G60DME60

In6A10A13A16A20A25A32A40A50A63A

UpstreamFuses gG-gL

6A----------

10A----------

16A----------

20A----------

25A1.20.90.9-------

35A3.01.61.51.41.1-----

50A4.03.02.72.42.11.91.7---

63A6.04.84.23.83.22.92.62.4--

80A6.06.06.05.84.84.43.83.4--

100A6.06.06.06.06.06.05.95.34.44.4

125A6.06.06.06.06.06.06.06.06.06.0

Fuses

Downstream Curve C

G60DME60

UpstreamFuses gG-gL

6A0.20.1------------

10A1.00.30.2-----------

16A4.01.00.40.3----------

20A6.04.40.70.6----------

25A6.06.00.80.70.6---------

35A6.06.05.31.91.51.40.8-------

50A6.06.06.04.22.92.52.42.3------

63A6.06.06.06.04.64.03.93.63.2-----

80A6.06.06.06.06.06.05.75.44.64.33.7---

100A6.06.06.06.06.06.06.06.06.06.05.85.1--

125A6.06.06.06.06.06.06.06.06.06.06.06.06.06.0

Fuses

Downstream Curve D

G60Type D

In0.51A2A4A6A10A13A16A20A25A32A40A50A63A

UpstreamFuses gG-gL

6A0.1-------------

10A0.30.2------------

16A1.00.50.3-----------

20A5.01.20.6-----------

25A6.06.01.60.80.6---------

35A6.06.03.52.01.7---------

50A6.06.06.03.62.82.3--------

63A6.06.06.06.05.03.73.6-------

80A6.06.06.06.06.05.45.04.8------

100A6.06.06.06.06.06.06.06.06.06.0----

125A6.06.06.06.06.06.06.06.06.06.0----


T1

T1.19

Technical Data

Selectivity - Upstream Fuses BS / Downstream MCB's G60


Fuses

Downstream Curve B

G60DME60

In6A10A16A20A25A32A40A50A63A

UpstreamFuses BS1361

40A2.31.81.51.3-----

63A6.05.04.23.43.22.82.7--

80A6.06.05.84.84.33.83.6

--

100A6.06.06.05.34.74.24.03.73.2

125A6.06.06.06.06.06.05.65.34.5

160A6.06.06.06.06.06.06.06.06.0

Fuses

Downstream Curve C

G60DME60


Fuses

Downstream Curve D

G60

In6A10A16A20A25A32A40A50A63A


40A1.71.41.41.21.0----

63A6.03.93.63.12.82.32.1--

80A6.05.24.74.13.73.22.9--

100A6.05.85.24.64.13.53.33.02.6

125A6.06.06.06.06.05.45.04.74.2

160A6.06.06.06.06.06.06.06.06.0

40A2.01.61.41.2-----

63A5.34.23.83.43.02.82.5--

80A6.05.55.04.23.93.43.1--

100A6.06.05.74.84.43.93.53.22.9

125A6.06.06.06.06.05.85.34.74.2

160A6.06.06.06.06.06.06.06.06.0

In6A10A16A20A25A32A40A50A63A

T1

T1.20

Cir

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Pro

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Selectivity - Upstream Fuses gL-gG / Downstream MCB's G100

Fuses

Downstream Curve B

G100DME100

In6A10A13A16A20A25A32A40A50A63A

UpstreamFuses gG-gL

Fuses

Downstream Curve C

G100DME100

UpstreamFuses gG-gL

Fuses

Downstream Curve D

G100Type D


UpstreamFuses gG-gL

6A----------

10A----------

16A----------

20A----------

25A0.70.60.5-------

35A1.71.61.51.41.1-----

50A3.53.02.72.42.11.91.7---

63A5.74.84.23.83.22.92.62.4--

80A10.07.36.55.84.84.43.83.4--

100A10.010.010.010.07.66.95.95.34.44.4

125A10.010.010.010.010.010.09.59.08.06.8

160A10.010.010.010.010.010.010.010.010.010.0


6A0.20.1------------

10A1.00.30.2-----------

16A4.01.00.40.3----------

20A6.04.40.70.6----------

25A8.07.00.80.70.6

--------

35A10.010.05.31.91.51.40.8-

-----

50A10.010.010.04.22.92.52.42.3------

63A10.010.010.010.04.64.03.93.63.2-----

80A10.010.010.010.07.56.25.75.44.64.33.7---

100A10.010.010.010.010.010.09.77.36.85.85.1---

125A10.010.010.010.010.010.010.010.010.010.09.08.57.06.4

160A10.010.010.010.010.010.010.010.010.010.010.010.010.010.0

6A0.1-------------

10A0.30.2------------

16A1.00.50.3-----------

20A5.01.20.6-----------

25A7.57.01.60.80.6---------

35A10.010.02.61.81.7---------

50A10.010.08.03.62.82.3--------

63A10.010.010.08.04.53.63.3-------

80A10.010.010.010.07.35.55.35.0------

100A10.010.010.010.010.010.08.57.76.86.1----

125A10.010.010.010.010.010.010.010.010.08.06.8---

160A10.010.010.010.010.010.010.010.010.010.010.010.010.09.5

Redline

T1

T1.21

Technical Data

Selectivity - Upstream Fuses BS / Downstream MCB's G100

Fuses

Downstream Curve B

G100DME100

In6A10A16A20A25A32A40A50A63A


40A2.31.81.51.3-----

63A6.85.04.23.43.22.82.7--

80A10.07.05.84.84.33.83.6

--

100A10.08.06.55.34.74.24.03.73.2

125A10.010.09.67.57.06.05.65.34.5

160A10.010.010.010.010.010.010.010.010.0

Fuses

Downstream Curve C

G100DME100

In6A10A16A20A25A32A40A50A63A


40A2.01.61.41.2-----

63A5.34.23.83.43.02.82.5--

80A6.05.55.04.23.93.43,1--

100A6.06.05.74.84.43.93.53.22.9

125A6.06.06.06.06.05.85.34.74.2

160A10.010.010.010.010.010.010.010.09.4

Fuses

Downstream Curve D

G100

In6A10A16A20A25A32A40A50A63A


40A1.71.41.41.21.0----

63A10.03.93.63.12.82.32.1--

80A10.05.24.74.13.73.22.9--

100A10.05.85.24.64.13.53.33.02.6

125A10.08.87.66.86.15.45.04.74.2

160A10.010.010.010.010.010.010.010.09.6

T1.22

Cir

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Pro

tect

ion

T1

Redline

Selectivity - Upstream MCCB's Record / Downstream MCB's ElfaPlus

ExampleA combination of an MCB G102 C25 with anupstream D160 160A guarantees selectivity up to ashort-circuit level of 10 kA. D160

125A

G102C25

MCCB

MCB

Curve B

C45-60 /DM60-100(1)

Curve B

G60 /DME60

Curve B

G100 /DME100

Curve B

GT25

D125-D125L D160 - D250 - DH 160 - DH250 - D160L - D250L D400 - DH400 - D400L16A

0.5

0.5

0.5

0.5

25A

2.01.6

2.01.6

2.01.6

2.01.6

40A

3.22.01.21.2

3.22.01.21.2

3.22.01.21.2

3.22.01.21.2

63A

3.52.81.41.41.31.31.3

3.52.81.41.41.31.3

3.52.81.41.41.31.3

3.52.81.41.41.31.3

80A

TT

4.04.03.53.53.5

T6.04.04.03.53.51.6

10.06.04.04.03.53.51.6

10.06.04.04.03.53.51.6

100A

TTTT

1.51.51.5

TT

6.06.06.06.05.0

10.010.06.06.06.06.05.0

10.010.06.06.06.06.05.0

125A

TTTT

1.51.51.5

TT

6.06.06.06.05.0

10.010.06.06.06.06.05.0

10.010.06.06.06.06.05.0

25A

4.02.5

4.02.5

4.02.5

4.02.5

40A

TT

3.0

T6.03.53.5

T6.03.53.5

T6.03.53.5

63A

TTTT

3.0

T7.56.04.54.53.02.0

T7.56.04.54.53.02.0

T7.56.04.54.53.02.0

100A

TTTTTTT

TTTTT

7.57.56.06.0

TT

10.010.010.07.57.56.06.0

TT

10.010.010.07.57.56.06.0

125A

TTTTTTT

TTTTTT

7.57.57.5

TTTT

10.010.07.57.57.5

TTTT

10.010.07.57.57.5

160A

TTTTTTT

TTTTTTTTT

TTT

13.013.010.010.010.010.0

15.015.015.013.013.010.010.010.010.0

200A

TTTTTTT

TTTTTTTTT

TTTTT

10.010.010.010.0

TTT

15.015.010.010.010.010.0

250A

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTT

15.015.015.015.015.0

200A

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

250A

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

320A

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

400A

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

All

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

All

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

All

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

All

TTTTTTT

TTTTTTTTT

TTTTTTTTT

TTTTTTTTT

6101620253240

61016202532405063

61016202532405063

61016202532405063

Upstream

Downstream

(A)

D630DH630D630LDH800

D630SDH630SD800S

D1250D1250S

D400SDH400S

(1) Icc limited to 6 kA for C60, DM60Icc limited to 10 kA for DM100

T = Total : selective untill the Icu of the downstream deviceOR the Icu of the upstream device

T1.23

Technical Data

T1

Selectivity - Upstream MCCB's Record / Downstream MCB's ElfaPlus

Curve C

C 45-60 /DM 60-100(1)

Curve C

G45

Curve C

G60 /DME60

Curve C

G100 /DME100

Curve C

Hti

D125-D125L D160 - D250 - DH 160 - DH250 - D160L - D250L D400 - DH400 - D400L16A

0.50.50.3

1.51.50.50.50.3

1.51.50.50.50.3

1.51.50.50.50.3

25A

2.02.01.21.21.2

1.21.2

6.06.02.02.01.21.21.2

6.06.02.02.01.21.21.2

6.06.02.02.01.21.21.2

40A

3.53.51.81.81.41.01.00.4

1.71.41.01.00.4

8.08.03.53.51.81.81.41.01.00.4

8.08.03.53.51.81.81.41.01.00.4

8.08.03.53.51.81.81.41.01.00.4

63A

4.54.51.61.61.51.21.20.80.5

1.61.51.21.20.80.5

10.010.04.54.51.61.61.51.21.20.80.5

10.010.04.54.51.61.61.51.21.20.80.5

10.010.04.54.51.61.61.51.21.20.80.5

80A

TTT

4.54.52.02.01.51.5

4.54.52.02.01.51.5

10.010.010.09.09.04.54.52.02.01.51.5

10.010.010.09.09.04.54.52.02.01.51.5

10.010.010.09.09.04.54.52.02.01.51.5

100A

TTTTT

5.05.04.52.32.3

TTTT

4.52.32.3

10.010.010.010.06.06.06.05.05.04.52.32.3

10.010.010.010.06.06.06.05.05.04.52.32.3

10.010.010.010.06.06.06.05.05.04.52.32.3

125A

TTTTT

5.05.04.52.32.3

TTTT

4.52.32.3

10.010.010.010.06.06.06.05.05.04.52.32.3

10.010.010.010.06.06.06.05.05.04.52.32.3

10.010.010.010.06.06.06.05.05.04.52.32.3

25A

3.51.61.5

9.09.03.51.61.5

9.09.03.51.61.5

9.09.03.51.61.5

40A

T5.02.01.0

1.0

10.010.09.05.02.01.0

10.010.09.05.02.01.0

10.010.09.05.02.01.0

63A

TT

5.04.02.52.52.02.0

TT

4.54.53.03.02.0

6.06.06.06.06.06.06.04.54.53.03.02.02.0

6.06.06.06.06.06.06.04.54.53.03.02.02.0

6.06.06.06.06.06.06.04.54.53.03.02.02.0

100A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTT

7.57.54.54.5

10.010.010.010.010.010.010.010.010.010.07.57.54.54.5

10.010.010.010.010.010.010.010.010.010.07.57.54.54.5

125A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTT

7.56.06.0

10.010.010.010.010.010.010.010.010.010.010.07.56.06.0

10.010.010.010.010.010.010.010.010.010.010.07.56.06.0

160A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

13.013.013.013.013.013.013.013.010.010.010.010.010.010.0

13.013.013.013.013.013.013.013.010.010.010.010.010.010.0

1.9

200A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTT

10.010.010.010.010.0

15.015.015.015.015.015.015.015.015.010.010.010.010.010.0

2.42.4

250A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

15.015.015.015.015.015.015.015.015.015.015.015.015.015.0

2.52.52.5

200A

TTTTTTTTTT

TTTTTTT

10.010.010.010.010.010.010.010.010.010.010.010.010.010.0

10.010.010.010.010.010.010.010.010.010.010.010.010.010.0

10.010.010.010.010.010.010.010.010.010.010.010.010.010.0

7.07.07.0

250A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTT

10.010.010.010.0

TTTTTTTTTT

10.010.010.010.0

TTTTTTTTTT

10.010.010.010.0

TTT

320A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTT

400A

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTT

All

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

6.56.56.5

All

TTTTTTTTTT

TTTTTTT

TTTTTTTTTT

10.010.010.010.0

TTTTTTTTTT

10.010.010.010.0

TTTTTTTTTT

10.010.010.010.0

TTT

All

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTT

All

TTTTTTTTTT

TTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTTTTTTTTTTTTT

TTT

2346101620253240

6101620253240

0.5123461016202532405063

0.5123461016202532405063

0.5123461016202532405063

80100125

Upstream

Downstream

(A)

D630DH630D630LDH800

D630SDH630SD800S

D1250D1250S

D400SDH400S

(1) Icc limited to 6 kA for C60, DM60Icc limited to 10 kA for DM100

T = Total : selective untill the Icu of the downstream deviceOR the Icu of the upstream device

T1.24

Cir

cuit

Pro

tect

ion

T1

Redline

Upstream

Downstream

RedlineG60 B/C curve

G100 B/C curve

GT25 B/C curve

Hti - B/C curve

S90 - C curve

In (A)

16202532405063162025324050631620253240506380

1003240506380

100

40

0.60.6-----

0.60.6-----

0.60.6-------

0.6-----

50

2.52.50.8----

2.52.50.8----

2.52.50.8------

0.8-----

63

T3

1.21.2---6

2.51.21.2---63

1.21.2-----

0.90.9----

80

TTT33

1.2-66633

1.2-66633

1.2---

1.21.21.2---

100

TTTT4

1.51.5T8664

1.51.5108664

1.51.5--

1.51.51.51.5--

125

TTTTTT2TTT8662TT108662

1.9-

1.91.91.91.91.9-

160

TTTTTTTTTTT662TTT10662

1.91.91.91.91.91.91.91.9

40

T3.51.6----T

3.51.6----

103.51.6------

0.8-----

50

TT

3.5----TT

3.5----

10103.5------1-----

63

TTTT---TTT6---TT156-----

1.21.2----

80

TTTTT

3.5-TTT66

3.5-TT1566

3.5---

151515---

100

TTTTTTTTTTTT88TTT101088--

15151515--

125

TTTTTTTTTTTTTTTTTTT10102.5-

1515151515-

160

TTTTTTTTTTTTTTTTTTTTT

2.52.5151515151515

40

T3.51.6----T

3.51.6----

103.51.6------

0.8-----

50

TT

3.5----TT

3.52.5---

10103.5------1-----

63

TTTTT--TTTTT--TT151010----

1.21.2----

80

TTTTT

3.5-TTTTT

3.5-TT1510103.5---

151515---

100

TTTTTTTTTTTTT8TTTT15108--

15151515--

125


2.5-

1515151515-

160


2.52.5151515151515

Record PlusTM type

FD160E FD160S FD160N, H & L

Selectivity limit in kA

* T = Total: selective unil the lowest Icu value of the two devices placed in series.

Selectivity - Upstream MCCB’s Record Plus / Downstream MCB’s Redline

T1.25

Technical Data

T1

Record PlusTM type

FE160N, H & L - TML FE160N, H & L - TMLD FE160N, H & L - SMR1 FE250N, H & L - TMLD FE250N, H & L - SMR1

Selectivity limit in kA

* T = Total: selective unil the lowest Icu value of the two devices placed in series.

Selectivity - Upstream MCCB’s Record Plus / Downstream MCB’s RedlineUpstream

Downstream

RedlineG60 B/C curve

G100 B/C curve

GT25 B/C curve

Hti - B/C curve

S90 - C curve

In (A)

202532405063162025324050631620253240506380

1001253240506380

100

63

T1.21.2---6

2.51.21.2---6

2.51.21.2------

0.6-----

80

TT33

1.2-66633

1.2-66633

1.2----

0.8-----

100

TTT4

1.51.5T8664

1.51.5108664

1.51.5---

0.950.9----

125

TTTTT2TTT8662TT1086621--

1.21.21.2---

160

TTTTTTTTTT662TTT1066222-

1.51.51.51.51.5-

100

TTTTT-TTTTTT-TTTTTT----TTT---

125

TTTTTTTTTTTTTTTTTTTTT--TTTTT-

160

TTTTTTTTTTTTTTTTTTTTTTTTTTTTT

63

TTT---TTTTT--TTTTT-----TT----

125

TTTTTTTTTTTTTTTTTTTTT--TTTTT-

160


125

TTTTTTTTTTTTTTTTTTTT---TTTT--

160

TTTTTTTTTTTTTTTTTTTTTT-TTTTTT

200&250


125

TTTTTTTTTTTTTTTTTTTT---TTTT--

160

TTTTTTTTTTTTTTTTTTTTTT-TTTTTT

250


T1.26

Cir

cuit

Pro

tect

ion

T1

Redline

Association (back-up protection)Association consist the use of an MCB with lowerbreaking capacity than the presumed one at theplace of its installation. If another protective deviceinstalled upstream is co-ordinated so that theenergy let-through by these two devices doesnot exceed that which can be withstood withoutdamage by the device placed downstream andthe conductor protected by these devices.

In the event of short-circuit, both protective deviceswill disconnect, therefore the selectivity betweenthem is considered as partial.

Association reduces the cost of the installation incase of high short-circuit currents.

To obtain association between a breaker and aprotective device, several conditions linked to thecomponents characteristic must be fullfilled. Thosehave been defined by calculation and testing.

Upstream

Downstream

SCPD

SCPD: Short-Circuit Protective Device

Upstream: Fuses / Downstream: MCB’s Redline Icc max 100 kA*

* In case of MCB with B characteristics

min. rating (A)

48

1020 (10*)25 (16*)40 (20*)50 (32*)63 (40*)80 (50*)

100 (50*)125 (63*)160 (80*)160200250

max. rating (A)

–6363808080

100100100125160160200200250

Type gG Type aMmin. rating (A)

246

10 (10*)16 (6*)20 (10*)25 (16*)32 (20*)40 (25*)50 (32*)63 (40*)80 (50*)

125125125

max. rating (A)

–63636380808080

100125160160125125125

In(A)

1236

101620253240506380

100125

Downstream: MCB’s ElfaPlus Upstream: fuses

Series

Curve C

G60G100GT25

Hti

*80 kA, 400V with 10 x 38 cartridge fuses

T1

T1.27

Technical Data

Back-up - Upstream MCB's Redline / Downstream MCB's Redline

Voltage 400/415V, Icc max. In kA

G10015kA

0.5 ... 631515-

GT2525kA< 32252525

GT2520kA

32 ... 40202020

GT2515kA

50 ... 63151515

Hti10kA

80 ... 6010--

G6010kA

0.5 ... 6310--

In (A)6 ... 40

0.5 ... 630.5 ... 63

Icu (kA)

61015

Downstream Upstream

G45G60G100


G10030kA

0.5 ... 63303030-

3030-

GT2550kA< 2550505050505050

GT2540kA

32 ... 4040404040404040

GT2530kA

50 ... 6330303030303030

Hti16kA

80 ... 1251616--

16--

G6020kA

0.5 ... 632020--

20--

In (A)2 ... 322 ... 326 ... 406 ... 406 ... 40

0.5 ... 630.5 ... 63

Icu (kA)

561015102030

Downstream Upstream

C45C60DM60DM100G45G60-DME60G100-DME100


Back-up - Upstream MCCB's Record / Downstream MCB's Redline

D125L130kA

101590130130130130130130

D16070kA

--

40506070656530

DH16080kA

--

45506580656530

D160L130kA

--

4550100100100100100

D25070kA

--

40506570656530

DH25080kA

--

40506080656530

D250L130kA

--

405075100100100100

D40050kA

---

225050505030

DH40070kA

---

225050505030

D400L130kA

---

252570707030

D63070kA

---

2222----

DH63080kA

---

2222----

D630L130kA

---

2222----

D125100kA

101540507080808030

In (A)2 ... 322 ... 326 ... 40

0.5 ... 630.5 ... 63

< 25> 32> 32

80 ... 125

Icu (kA)

5610203050403015

Downstream Upstream

C45C60G45G60-DME60G100-DME100GT25GT25GT25Hti


D125L100kA

5010010010010010050

D16030kA

20303030303015

DH16050kA

30404040404015

D160L100kA

40505050505050

D25035kA

25353535353515

DH25050kA

30404040404015

D250L100kA

40505050505050

D40035kA

-2222----

DH40050kA

-2222----

D400L100kA

-252525252520

D63035kA

-2222----

DH63050kA

-2222----

D630L100kA

-2525----

D80050kA

-2222----

DH80070kA

-2222----

D12525kA

15222222222225

In (A)6 ... 40

0.5 ... 630.5 ... 630.5 ... 630.5 ... 630.5 ... 6380 ... 125

Icu (kA)

6101525201510

Downstream Upstream

G45G60G100GT25GT25GT25Hti

T1.28

Cir

cuit

Pro

tect

ion

T1

Redline

Back-up - Upstream RecordPlus / Downstream Redline

Selectivity: Upstream MCB S90 / Downstream Redline


FD160S50kA

10151525365036303050

FD160N85kA

10151536508565505085

FD160H100kA

---

85100100100100100100

FD160L200kA

---

85100100100100100100

FE250N 85kA

---

36508565505085

FE250H100kA

---

85100100100100100100

FE250L200kA

---

85100100100100100100

FD160E36kA

10151522303630252536

In (A) 2 ... 322 ... 326 ... 40

0.5 ... 630.5 ... 63

2532-4050-63

80 ... 12510 ... 100

Icu (kA)

5101020305040301525

Downstream Upstream

C45C60G45G60G100GT25GT25GT25HtiS90


FD160S30kA

1522253030252525

FD160N50kA

1530364036363636

FD160H80kA

-36405040404040

FD160L150kA

-40505050505050

FE250N 50kA

-30364036363636

FE250H80kA

-36405040404040

FE250L150kA

-40505050505050

FD160E25kA

101520---

15-

In (A) 6 ... 40

0.5 ... 630.5 ... 63

2532-4050-63

80 ... 12510-100

Icu (kA)

510152520151025

Downstream Upstream

G45G60G100GT25GT25GT25HtiS90


Downstream Upstream

In (A) 0.5 ... 630.5 ... 63

2532-4050-63

Icu (kA)

1015252015

EP60EP100EP250EP250EP250

S9025kA

1002025252525

S90H50kA

804050505050

T1.29

Technical Data

T1

Use in DCSelection criteriaThe selection of an MCB to protect a D.C. installationdepends on the following parameters:- The nominal current- The nominal voltage of the power supply, which

determines the number of poles to switch thedevice

- The maximum short-circuit current, to determinethe short-circuit capacity of the MCB

- Type of power supply

In the event of an insulation fault, it is considered asan overload when one pole or an intermediateconnection of the power supply is connected toearth, and the conductive parts of the installationare also connected to earth.

Insulated generatorIn insulated generators there is no earth connection,therefore an earth leakage in any pole has noconsequence. In the event of fault between the twopoles (+ and –) there is a short-circuit in theinstallation which value will depend on the impedanceof the installation as well as of the voltage Un.Each polarity shall be provided with the appropriatenumber of poles.

Generator with one earthed poleIn the event of a fault occuring in the earthed pole (-)there is no consequence. In the event of a faultbetween the two poles (+ and -) or between the pole +and earth, then there is a short-circuit in the installa-tion which value depends on the impedance of theinstallation as well as of the voltage Un. The unearthedpole (+) shall be provided with the necessary numbersof poles to break the maximum short-circuit.

Generator with centre point earth connectionIn the event of short-circuit between any pole (+ or -)and earth, there is a Isc<Isc max because thevoltage is Un/2. If the fault occurs between the twopoles there is a short-circuit in the installation whichvalue depends on the impedance of the installationas well as the voltage Un.Each polarity shall be provided with the necessarynumber of poles to break the maximum short-circuitat Un/2.

Redline

T1

T1.30

Cir

cuit

Pro

tect

ion

MCB’s

Maximum voltagebetween linesMaximum voltage be-tween lines and earthPower supply at bottom terminals

Power supply at top terminals

250 V

250 V

250 V

250 V

440 V

440 V(1)

440 V

250 V

440 V(poles inversion)250 V

Example of utilisation for maximum voltage between lines according to the number of poles

MCB’s

Maximum voltagebetween linesMaximum voltagebetween lines andearth

440 VMultipole breaking250 VGenerator with centre point earth connection

440 VMultipole breaking440 VGenerator without earth connection or with one earthed pole

440 VMultipole breaking440 VGenerator without earth connectionor with one earthed pole

Example of utilisation for different voltages between line and earth than between two lines

(1) Negative pole connected to earth * On request

* On request

Use of standard MCB in DC (acc. to IEC 60947-2)For MCB’s designed to be used in alternating currentbut used in installations in direct current, the followingshould be taken into consideration: - For protection against overloads it is necessary to

connect the two poles to the MCB. In theseconditions the tripping characteristic of the MCBin direct current is similar in alternating current.

- For protection against short-circuits it is necessaryto connect the two poles to the MCB. In these

conditions the tripping characteristic of the MCBin direct current is 40% higher than the one inalternating current.

Use of special MCB (UC) in DC (acc. to IEC60898-2) (UC= Universal Current)For MCB’s designed to work in both alternating anddirect current, it is necessary to respect the polarityof the terminals since the device is equipped with apermanent magnet.

Installation of MCB’s series EP100 UC in direct current

Series

G60(1)

G100(1)

GT10(1)

EP100UC

Rated current (A)

0.5....63A0.5....63A0.5....63A6....25A

Icu (kA)

202520-

Icu (kA)

253025-

Icu (kA)

---6

Icu (kA)

---6

Use in DC selection table60 V 1 pole 125 V 2 poles in series 250 V 1 pole 440 V 2 poles in series

EP 100 UC 1P EP 100 UC 2P EP 100 UC 4P *

EP 100 UC 2P EP 100 UC 4P *

(1) Nominal voltage for G60/G100/GT10: 48/110VDCMaximum voltage for G60/G100/GT10: 53/120VDC

T1

T1.31

Technical Data

0°

0.571.132.273.404.536.80

12.3318.6723.3329.1737.3346.6757.5072.45

10°

0.551.112.223.324.436.6511.5617.7822.2227.7835.5644.4455.0069.30

20°

0.521.042.093.134.186.2710.7816.8921.1126.3933.7842.2352.5066.15

40°

0.480.961.912.873.825.739.2315.1118.8923.6230.2337.7947.5059.85

50°

0.460.911.822.733.655.478.4514.2317.7822.2328.4535.5745.0056.70

60°

0.430.871.732.603.475.207.6713.3416.6720.8426.6833.3542.5053.55

1 poleIn

0.512346

1016202532405063

Influence of air temperature (IEC/EN 60898)Calibrated at 30°C

0°

0.551.092.183.274.366.54

11.6717.8122.2727.8335.6344.5359.5074.97

10°

0.531.062.123.184.246.3611.1117.4221.7827.2234.8443.5656.3370.98

20°

0.521.032.063.094.126.1810.5616.7120.8926.1133.4241.7853.1766.99

40°

0.490.971.942.913.885.829.4515.2919.1123.8930.5838.2346.8359.01

50°

0.470.941.882.823.765.648.8914.5818.2322.7829.1636.4543.6755.02

60°

0.460.911.822.733.645.468.3313.8717.3421.6727.7434.6840.5051.03

n polesIn

0.512346

1016202532405063

Calibrated at 30°C

30°

0.5123461016202532405063

30°

0.5123461016202532405063

Influence of ambient airtemperature on the rated current

The thermal callibration of the MCB’s wascarried out at ambient temperature of 30°C.Ambient temperatures different from 30°Cinfluence the bimetal and this results in earlieror later thermal tripping.

0,5 - 6A 10A

16 - 40A 50 - 63A

: 1P (Single pole): mP (Multipole)

Redline

T1

T1.32

Cir

cuit

Pro

tect

ion

Tripping current as a functionof the frequencyAll the MCB’s are designed to work at frequenciesof 50-60 Hz, therefore to work at different values,consideration must be given to the variation of thetripping characteristics. The thermal tripping doesnot change with variation of the frequency but themagnetic tripping values can be up to 50% higherthan the ones at 50-60 Hz.For DC current magnetic tripping is 50% higher.

Power lossesThe power losses are calculated by measuringthe voltage drop between the incoming and theoutgoing terminals of the device at rated current.

Limitation curvesLet-through energy I2tThe limitation capacity of a MCB in short-circuitconditions, is its capacity to reduce the value ofthe let-through energy that the short-circuit wouldbe generating.

Peak current lpIt is the value of the maximum peak of the short-circuit current limited by the MCB.

60Hz

1

100Hz

1.1

200Hz

1.2

300Hz

1.4

400Hz

1.5

Tripping current variation

Icc peakassumed

Icc assumed

Icc peaklimited

Icc limited

1

A

2

B

See page T1.33 up to T1.44

In(A)

0.5123468101316202532405063

Voltage drop(V)

2.231.270.620.520.370.260.160.160.160.160.140.130.100.100.090.08

Energy loss Pw(W)

1.121.271.241.561.491.571.241.562.012.572.763.193.074.004.505.16

Resistance Z(mOhm)

4458.001272.00310.00173.0093.0043.6019.4015.6011.9010.106.905.103.002.501.801.30

Power losses per pole MCB Series G

In(A)

2461016202532

Voltage drop(V)

0.820.570.210.130.110.140.100.09

Energy loss Pw(W)

1.602.301.301.301.802.802.503.00

Resistance Z(mOhm)

400.00144.0036.1013.007.037.004.002.93

Power losses per pole MCB Series C

In(A)

80100125

Voltage drop(V)

0.080.08 0.08

Energy loss Pw(W)

6.007.509.50

Resistance Z(mOhm)

0.900.750.60

Power losses per pole MCB Series Hti

T1

T1.33

Technical Data

Let-t

hrou

gh e

nerg

y I2 t

(A2 s

)

Prospective current Icc (kA)

I2t Let-through energy at 230V

C45-C60 Curve 1P+N / 1 module

Redline

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Ip Limited peak current at 230/400 V

C63

C16C10C6

C4

C2

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I2t Let-through energy at 230/400 V

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I2t Let-through energy at 230 V

C50C40C32C25C20

G45 Curve C 1P, 1P+N, 2P, 3P, 4P G45 Curve C 2P

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T1.35

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B63B50B40B32B25B20B16B10

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G45 Curve B 1P, 1P+N, 2P, 3P, 4P G45 Curve B 2P

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B63B50B40B32B25B20B16B10

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T1.37

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G60 Curve C 1P, 1P+N, 2P, 3P, 4P G60 Curve C 2P

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C16C10C6

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C50C40C32C25C20

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G60 Curve D 1P, 1P+N, 2P, 3P, 4P G60 Curve D 2P

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D63D50

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D40D32D25D20D16D10

T1.39

Technical Data

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1

103

104

10 15 20 30 40 50 1005

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B63B50

B40B32B25B20B16B10B6

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1

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10 15 20 30 40 50 1005

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G100 Curve C 1P, 1P+N, 2P, 3P+N G100 Curve C 2P

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C63

C40C32

C50

C25C20C16C10C6

C4

C2

9

8

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D63D50

D40D32D25

D10D6

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D4

D20D16

9

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GT25 Curve B 1P, 2P, 3P, 4P GT25 Curve B 2P

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B63 B40B32

B50B25B20B16B10

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T1.43

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GT25 Curve C 1P, 2P, 3P, 4P GT25 Curve C 2P

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C63 C40C32C50 C25

C20C16C10

C6

C4

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T1.44

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GT25 Curve D 1P, 2P, 3P, 4P GT25 Curve D 2P

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0.5 1.5 3 4.5 6 7.5 10 15 20 25


D63 D40D32D50 D25

D20D16D10

D6

D4

D2

10

9

8

7

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T1.45

Technical Data

T1

x In

x Inx In

Curve B Curve D

Curve C

Tripping curves acc. EN/IEC 60898 The following tables show the average trippingcurves of the GE MCB’s based on the thermalcalibration as well as the magnetic characteristic.

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Redline

Selective circuit breaker S90

ApplicationThe selective circuit breaker ElfaPlus S90 oftenserves as gang switches in distribution boards withthe highest demand on selectivity and operatingconvenience.The ElfaPlus S90 are used as higher protectionelement in a installation with different MCB’s.

The S90 breaker are equipped additional to themain current path with another two circuits:- Parallel current path that contains a resistor R for

current limitation.- Measuring circuit with magnet impulses to close

the main contact

FunctionThe selective main circuit breaker ElfaPlus S90 is aminiature circuit breaker employed as superordinateprotective element in series with traditional MCB’s.The unit, in order to switch selectively has inaddition to the main current path (fig. 1) anotherparalelle current path with a currentlimiting resistorR and a measuringcircuit with a solnenoid drive toclose the main contact.

Manual closing (fig. 1 and fig. 2)If the selective circuit breaker is manually switched-on, first of all the contact K2 closes and theoperating current flows via the parallel current path.At the same time contact K3 and hence themeasuring circuit are closed (fig. 1). Only then is themain contact K1 closed and the operating currentflows via the main current path (fig. 2). As theparallel current path owing to resistor R has ahigher resistance than the main current path, nomentionable current continues to flow there. On K1closing, K3 in the measuring circuit is reopened.

Fault closure lockout (fig. 3)If the MCB is closed onto an existing fault, themeasuring circuit that measures the voltagebetween line and neutral at the output of theElfaPlus S90,prevents the main contact K1 closing.The breaker can not be closed onto the fault and nohigh current can flow. After a short time contacts K1and K3 are reopened due to the bimetal trip B2 andthe current limited by resistor R in the parallelcurrent path (maximum 5 times rated current) isinterrupted.This fault closure lockout thus protects theinstallation but also the operating personel.

Selective fault tripping (fig. 4 and fig. 2)If the selective circuit is switched-on (K1 closed)and a fault occurs downstream of an MCB, the faultcurrent is interrupted either by the MCB alone orwith the help of the operating main contact K1.Contact K2 remains closed, and current can stillflow via parallel current path, even when the arc atthe main contact K1 is quenched (fig. 4).If the downstream MCB has isolated the fault fromthe installation, in the ElfaPlus S90 the main contactis reclosed (fig. 2). Loads lying parallel to the faultedcircuit are immediatelly supplied with current, at firstvia the parallel current path and shortly after againvia the main current path.

Parallel current path

Main current path

Measuring circuit


Main current path

Measuring circuit

Fig. 1 Manual closing: K2 and K3 close

Fig. 2 No fault main contact:K1 closes, K3 opens (K1-K2 closed)


Main current path

Measuring circuit

Fig. 3 Existing fault: K1 does not close. B1 opensK2 and k3 after max. 1s.

T1.47

Technical Data

T1Curve C according to EN/IEC 60898

Fault upstream of MCB (fig. 4 and fig. 3)If the fault occurs between the ElfaPlus S90 and thedownstream MCB (or if some reasons a fault behinda miniature circuit breaker is not cleared by it), afterquenching of the arc a current limited by resistor Rstill flows at the contact point K1 via the parallelcurrent path (fig. 4) untill contact K2 is also openeddue to the bimetal B2 (fig. 3)


Main current path

Measuring circuit

Tripping curve

Fig. 4 Fault while unit closed: K1 opens and K3 closes

Opening on overload (fig. 5)If an overload current flows fot too long, the bimetaltrip B1 in the main current path operates and openscontact K1 and K2 in the main and parallel currentpaths.

Manual openingOn manual opening the contacts are opened notonly in the main current path but also in the parallelcurrent path (K1 and K2)

t(s)


Main current path

Measuring circuit

Fig. 5 Overload:B1 opens and K1 and K2

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T1.48

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Text for specifiers

MCB Series G60/100- According to EN/IEC 60898 standard- For DIN rail mounting according to DIN EN/IEC 50022;

EN/IEC 50022; future EN/IEC 60715; IEC 60715(top hat rail 35 mm)

- Grid distance 35 mm- Working ambient temperature from -25°C up to +50°C- Approved by CEBEC, VDE, KEMA, IMQ...- 1 pole is a module of 18 mm wide- Nominal rated currents are:

0.5/1/2/3/4/6/10/13/16/20/25/32/40/50/63 A- Tripping characteristics: B,C,D,K- Number of poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P- The short-circuit breaking capacity is: 3/4,5/6/10kA,

energy limiting class 3- Terminal capacity from 1 up to 35mm2 rigid wire or

1,5 up to 25 mm2 flexible wire.- Screw head suitable for flat or Pozidriv screwdriver- Can be connected by means of both pin or fork

busbars on bottom terminals- The toggle can be sealed in ON or OFF position- Rapid closing- Both incoming and outgoing terminals have a

protection degree of IP20 and they are sealable- Isolator function thanks to the printing Red/Green

on the toggle.- Maximum voltage between two phases; 440V~- Maximum voltage for utilisation in DC current: 48 V

1P and 110 V 2P- Two position rail clip- Mechanical shock resistance 40g (direction x, y, z)

minimum 18 shocks 5 ms halfsinusoidal acc. toIEC 60068-2-27

- Vibrations resistance: 3g (direction x, y, z)minimum 30 min. according to IEC 60068-2-6

- Extensions can be added on both left or righthand side

- Auxiliary contact- Shunt trip- Undervoltage release- Motor operator- Panel board switch

- MCB’s have a circuit indicator for easy circuitidentification

- Add-on RCD can be coupled

MCB Series GT25- According to EN/IEC 60947.2 standard- For DIN rail mounting according to DIN EN/IEC 50022;


- Working ambient temperature from -25°C up to +50°C- 1 pole is a module of 18 mm wide- Nominal rated currents are:

0,5/1/2/3/4/6/10/13/16/20/25/32/40/50/63 A- Tripping characteristics: B,C- Number of poles: 1P, 2P, 3P, 4P- The short-circuit capacity is: 10/15/25/50 kA- Terminal capacity from 1 up to 35mm2 rigid wire or

1,5 up to 25 mm2 flexible wire- Screw head suitable for flat or Pozidriv screwdriver- Can be connected by means of both pin or fork busbars

on bottom terminals- The toggle can be sealed in ON or OFF position- Rapid closing- Both incoming and outgoing terminals have a

protection degree of IP20 and they are sealable- Isolator function thanks to the printing Red/Green

on the toggle.- Maximum voltage between two phases; 440V~ - Maximum voltage for utilisation in DC current: 48 V

1P and 110 V 2P- Two position rail clip- Mechanical shock resistance 40g (direction x, y, z)

minimum 18 shocks 5 ms halfsinusoidal acc. toIEC 60068-2-27






T1

T1.49

Technical Data

MCB Series EP100 UC- According to EN/IEC 60898-2 standard- For DIN rail mounting according to DIN EN/IEC 50022;


- Grid distance 35 mm- Working ambient temperature from -25°C up to +50°C- 1 pole is a module of 18 mm wide- Nominal rated currents are:

0,5/1/2/3/4/6/10/13/16/20/25/32/40/50/63 A- Tripping characteristics: B, C- Number of poles: 1P, 2P- The short-circuit breaking capacity is: 6 kA, ”energy

limiting” class 3- Terminal capacity from 1 up to 35mm2 rigid wire or

1,5 up to 25 mm2 flexible wire- Screw head suitable for flat or Pozidriv screwdriver- Can be connected by means of both pin or fork

busbars on top or bottom terminals- The toggle can be sealed in ON or OFF position- Rapid closing- Both incoming and outgoing terminals have a

protection degree of IP20 and they are sealable- Isolator function thanks to the printing Red/Green on

the toggle.- Maximum voltage: 1P - 250 V

2P - 440 V . Poles in series- Two position rail clip- Mechanical shock resistance 40g (direction x, y, z)

minimum 18 shocks 5 ms halfsinusoidal accordingto IEC 60068-2-27






MCB Series Hti- According to EN/IEC 60947.2 standard- For DIN rail mounting according to DIN EN/IEC 50022;


- Working ambient temperature from -25°C up to +50°C- 1 pole is a module 1,5 module (27mm)- Nominal rated currents are: 80/100/125A- Tripping characteristics: B, C, D- Number of poles: 1P, 2P, 3P, 4P- The short-circuit capacity is: 10kA- Terminal capacity from 2,5 up to 70mm2

- The toggle can be sealed in ON or OFF position- Both incoming and outgoing terminals have a

protection degree of IP20 and they are sealable- Isolator function thanks to the printing red/green

on the toggle. It can be used as main switch- Maximum voltage between two phases: 440V~ - Two position rail clip- Mechanical shock resistance 40g (direction x, y, z)

minimum 18 shocks 5 ms halfsinusoidal accordingto IEC 60068-2-27

- Extensions can be added- Auxiliary contact- Shunt trip

- Endurance:- Mechanical: 10.000 operations- Electrical: 4000 operations


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Dimensional drawings

Miniature Circuit Breakers - Series C

Miniature Circuit Breakers - Series G & GT

Miniature Circuit Breakers - Series EP100 UC

T1.51

Technical Data

T1

27 54 81 108

79

58

44

9445

73

Add-on RCD’s for Series Hti

Miniature Circuit Breakers - Series Hti

Auxiliary contact - Series Hti Shunt trip - Series Hti

ElfaPlus

T2.1

T1

T2

T3

T4

Circuit Protection

People Protection

Add-on Devices

Comfort Functions

Redline

T2.2T2.2T2.2T2.3T2.4

T2.7T2.7T2.8T2.8T2.9

T2.10T2.11T2.13T2.15T2.19T2.20T2.20T2.21T2.22T2.23T2.24T2.26T2.28

T2.29T2.30

Protection against electric shocksEffects of current passing through the human bodyRisk of electric shockHow to prevent direct and indirect contactInstallation distribution systems

What is an RCD?Definitions related to RCD’sRCD’s classification according to EN/IEC 61008/61009Type AC - Type A - Type S Vertical and horizontal selectivityNuisance trippingProduct identification of an RCCB Series BPC/BDC and its useProduct identification of an RCBO Series DM and its useProduct identification of an add-on RCD and its useEasy DIN-rail extractionProduct related informationInfluence of air ambient temperature in the rated currentTripping current as a function of the frequencyProtection of RCCBPower lossesRCBO let-through energy I2tProduct indentification of an RCBO Series DME and its useRCBO tripping curves acc. to EN/IEC 61009

Text for specifiersDimensional drawings

Residual current devicesTechnical Data

Redline

T2

Protection against electric shocks

Effects of current passingthrough the human bodyPresent thinking on the effects of electrical currentpassing through the human body is based oninformation from many sources.

- Experiments on animals- Clinical observation- Experiments on dead human beings- Experiments on live human beings

We must remember that we are considering here theeffects of shock current. Other factors must beconsidered when setting safety requirements:- Probability of fault- Probability of contact with live or faulty parts- Experience- Technical possibilities- Economics

The degree of danger to people depends mainly onthe magnitude and duration of current flow throughthe human body. The major parameter, whichinfluences the current magnitude, is the impedanceof the human body.

The effects of electrical current on people arespecified in figure 1 (table time/current IEC 60479-1).

Zones Physiological effects:Zone 1 Usually no reaction effects.Zone 2 Usually no harmful physiological effects.Zone 3 Usually no organic damage to be

expected. Likelihood of muscular contractions and difficulty in breathing,reversible disturbances of formation andconduction of impulses in the heart, including atrial fibrillation and transient cardiac arrest without ventricular fibrillation increasing with current magnitude and time.

Zone 4 In addition to the effects of Zone 3,probability of ventricular fibrillation increasing up to about 5% (curve c2), up to about 50% (curve c3) and above 50% beyond curve c3. Increasing with magnitude and time, pathophysiologicaleffects such as cardiac arrest, breathing arrest and heavy burns may occur.

Risk of electric shockElectric shock is produced when the human body isin contact with conductive surfaces at differentpotentials. There are two kind of contact whichcauses electric shock:- Direct contact- Indirect contact

The main causes of electric shock are:- Defect of insulation in the high/low voltage transformer- Overvoltages due to atmospheric sources- Ageing of the load or wiring insulation- Live parts not sufficiently protected

In IEC 61200-413, derived from IEC 60479, it isexplained how the maximum safety voltage is afunction of the environmental conditions and theprospective touch voltage is a function of themaximum tripping time.Maximum safety voltage:- UL= 24V (wet conditions) - UL= 50V (dry conditions)

T2.2

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Prospectivetouch

voltage (V)

< 50507590

120150220280350500

UL = 50Vmaximum tripping time (s)

ac550.60.450.340.270.170.120.080.04

dc5555510.40.30.20.1

Time / current zones of effects of ACcurrent (15Hz to 100 Hz) on persons (fig. 1)

Tripping time in function of touch voltage

T2

T2.3

Technical Data

Direct contactWhen a person accidentally touches a live part ofthe installation not connected to an earth electrode.In this situation the person becomes part of theelectric circuit by means of body resistance andearth resistance.

Indirect contactWhen a person touches a metal part of the load,which is earthed, and accidentally makes contactwith an electrical conductor due to a loss ofinsulation.

How to prevent directand indirect contactProtection against electric shock shall be providedby applying the following concepts according to IEC 60364-4-41:

Protection against direct and indirect contactProtection by means of the use of very low voltage:

- SELV (safety extra low voltage)- PELV (protective extra low voltage)- FELV (functional extra low voltage)

Protection against direct contactPrevention of direct contact can be summarised asfollows:

- Insulate conductor with appropriate materials- Using barriers or enclosures with appropriate

IP degree- Designing the installation with appropriate

safety distances- Complementary protection by using RCD 30 mA

Protection against indirect contactTo prevent indirect contact there are differentways of protection:Using materials that ensure a class II protection

Protection in non conductive environmentsAll the exposed conductive parts must be undernormal circumstances in such a way that peoplecan not touch any live part.This installation will not necessitate any protectiveconductors. Walls and floors shall be isolated with a resistanceno less than:- 50 k for installations with nominal voltage <500V- 100 k for installations with nominal voltage >500V

Protection by means of local equipotential linksin installations not connected to earthThe equipotential link must not be connected toearth either through the exposed conductive partsor the protective conductors.

Protection by means of electric (galvanic) isolationBy using isolation transformers.

Protection by automatic disconnection of theinstallationNecessary in the case of risk of physiologicaleffects on persons, due to the amplitude andduration of the touch voltage.This kind of protection requires a good co-ordination among the connections to Earth, thecharacteristics of the protective conductor and theprotective device.

- Connection to Earth and protective conductor.All the exposed conductive parts must be earthedby means of protective conductors according toany of the different installation distribution systems.

- Protective device.The protective device must isolate the installationfrom the source of energy in case any exposedconductive part becomes live. Such a deviceensures that the safety voltage (UL) does notexceed 50V or 120V ripple free.

Redline

T2

Installationdistribution systemsTT systemA system having one point of the source of energydirectly earthed, the exposed conductive parts ofthe installation being connected to earth electrodeselectrically independent of the earth electrodes ofthe source.

➀ Source of energy➁ Source earth➂ Consumers’ installation➃ Equipment in installation➄ Exposed conductive part➅ Installation earth electrode➆ Residual current device

In the case of isolation fault, the potential of theexposed conductive parts will suddenly increasecausing a dangerous situation of electric shock.This can be avoided with the use of RCD’s withthe proper sensitivity in function of touch voltage.

To ensure safety conditions in the installation, theearth values shall comply with:

RA x I n 50V

RA = Earth resistance value of the installation.I n = Residual operating current value of the RCD.

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7

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3

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TT wiring diagram

IT systemA system having no direct connection between liveparts and earth, the exposed conductive parts ofthe electrical installation connected to an earthelectrode.The source is either connected to earth through adeliberately introduced earthing impedance or isisolated from earth.In case of an insulation fault the value of the current isnot high enough to generate dangerous voltages.Nevertheless protection against indirect contact mustbe provided by means of an insulation monitoringdevice which shall provide visual and sonorous alarmwhen the first fault occurs. The service interruption bymeans of breakers must be done in case of a secondfault according to the following tripping conditions:

To ensure safety conditions in the installation, itshall comply with:

RA x Id 50VRA = Earth resistance value of the installation.Id = Fault current value of the first fault.

L1L2L3

7

6

2

8

4

5

3

1

➀ Source of energy➁ Source earth➂ Consumers’ installation➃ Equipment in installation➄ Exposed conductive part➅ Earthing impedance➆ Isolation controller➇ Protective device for the second fault

Uo/U (V)

Uo= Voltage phase/neutralU= Voltage between 2 phases

127/220230/400400/690580/1000

No distributedNeutral

0.80.40.20.1

DistributedNeutral

0.80.40.20.1

IT wiring diagram

Maximum tripping timeTripping time(s) UL= 50VSafety

voltage

50V25V

0.01A50002500

0.03A1666833

0.1A500250

0.3A16683

0.5A10050

1A5025

0.3A8341

Sensitivity in function of earth resistance valuesSensitivity S

T2

T2.5

Technical Data

TN systemA system having one or more points of the sourceof energy directly earthed, the exposed conductivepart of the installation being connected to that pointby protective conductors. In case of an insulationfault a short-circuit (phase – neutral) is caused inthe installation.

There are two types of TN systems: TN-C and TN-S

TN-C, a system in which neutral and protectivefunctions are combined in a single conductorthroughout the system.

➀ Source of energy➁ Source earth➂ Consumers’ installation➃ Equipment in installation➄ Exposed conductive part➅ Additional source Earth ➆ Combined protective and neutral conductor PEN➇ Short-circuit protective device

TN-S, a system having separate neutral andprotective conductors throughout the system.

➀ Source of energy➁ Source earth➂ Consumers’ installation➃ Equipment in installation➄ Exposed conductive part➅ Protective conductor➆ Short-circuit protective device (MCB or RCD)

L1L2L3PEN

8

3

7

62

4

5

1

TN-C wiring diagram

7

3

1

2

6

4

5

L1L2L3

PEN

TN-S wiring diagram

The short-circuit caused by the insulation fault shallbe switched by a protective device which should befast enough according to the following conditions:

1. To ensure safety conditions in the installation, theprotective device shall comply with:

ZS x Ia U0

ZS= Total impedance of the fault ringlet(including the impedance’s of the source ofenergy, the active conductor and theprotective conductor).

Ia= Fault current which ensures the operating ofthe protective device.(In case of RCD: Ia=Idn)

U0= Rated voltage phase-earth

2. The breaking speed is provided by the magnetictripping system of the breaker or by theprotective fuse.

3. In case of long cables the short-circuit currentmay not reach the tripping values of the protectivedevice, therefore we need to use RCD’s (TN-S).

4. To verify that the fault current generated is highenough to trip the protective device, we shouldtake into account the following parameters:

4.1. Tripping characteristic of the protective device:MCB’s: B characteristic (3-5 x In)

C characteristic (5-10 x In)D characteristic (10-20 x In)

MCCB’s: According to the magnetic calibration

Fuses: According to the time/currentcharacteristic: - gI

- gG- aM

4.2. Rated current of the protective device (In).

4.3. Installation impedanceLength and cross section of cables.See tables on B.6

VoltagePhase/neutralUo (V)127230400> 400

Maximumtripping time (s)ac0.80.40.20.1

Maximum tripping time

Redline

T2

Trippingcharacteristic

K1Curve B x 2Curve D x 0.5Curve K x 1.6Curve Gi x 0.8Curve Im x 10/Im

Voltage

K23 x 230V x 0.58

Conductor

K3Aluminium 0.62

Cross section ofPE(N) conductor

K4m = Sphase / Spe(n)m = 0.5 x 2m = 1 x 1m = 2 x 0.67m = 3 x 0.5m = 4 x 0.4

T2.6

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Correction coefficients Example3-phase TN system Un = 230 V protected withMCCB 80A (Im = 8 x In). Phase conductor 50 mm2

copper and PE conductor 25 mm2 copper.

Lmax = 257 x 108 x 0.58 x 0.67 = 125m

In (A)S mm2

1.5 2.54610162535507095120150185240

16

99

20

86134

25

40110183

32

2167139214

40

1341108165275

50

72567139226

63

134694172283

80

82455130217336

100

143390168257367

125

7.32057128197283379

160

103086155220299441

200

17.553118172229336472

250

3073134179268367462483

315

4259136202278346373441

400

4893134215268283336504

500

58124172215231273315

630

55109145151185215

800

63109124147172

1000

5279107126

Maximum protected cable length for people protection (indirect contact)

gG fusesCopper conductor

100

2541661031442052873904935366337889471026114011667809851071126615771170147816071899

125

335382115164230312394428506631758821912933624788857101312619361182128515191892

160

416490128180244308335396493592642713729488616669791985731924100411871478

250

5782115156197214253315379411456467312394428506631468591643760946

400

7298123134158197237257285292195246268316394293370402475591

630

7885100125150163181185124156170201250186235255301375

800

799911812814314698123134158197146185201237296

1000

79951031141177899107127158117148161190236

1250

829193

798610112694118129152189

1600

73

79997392100119148

Maximum protected cable length for people protection (indirect contact)

TN 3 x 400V, UL = 50V, m = 1 by means of fuses gI-gG

TN 3 x 400V, UL = 50V, m = 1 by means of MCB’s & MCCB’s

In (A)S mm2

1.52.546101625355070951201501852403004005006252x952x1202x1502x1852x2403x953x1203x1503x1853x240

0,5

1232

1

61610261642

2

3085138211232

4

15425741161610261642

6

10317127441168410951711

10

6210316424641165710261437

16

386410315425741164289812831796

20

315182123205328513718102614371950

25

25416699164263411575821115015601971

32

193251771282053214496428981219154016731978

40

152641621031642573595137189751232133915821971

1950

50

213349821312052874115757809851071126615771895

15601971

63

16263965104163228326456619782850100512511504162918101851123815641700

1857

80

213151821281802573594886166697919851184128314261458975123213391582197114631848

Copper conductorCurve C (Im: 10 x In)

T2

T2.7

Technical Data

What is an RCD?The RCD (Residual Current Device) is a devicewhich intends to protect people against indirectcontact, the exposed conductive parts of theinstallation being connected to an appropriate earthelectrode. It may be used to provide protectionagainst fire hazards due to a persistent earth faultcurrent, without the operation of the overcurrentprotective device.

RCD's having a rated residual operating currentnot exceeding 30 mA are also used as a meansfor additional protection in case of failure of theprotective means against electric shock(direct contact).

WORKING PRINCIPLEThe main components of a RCD are the following:- The core transformer: which detects the earthcurrent fault.- The relay: when an earth fault current is detectedthe relay reacts by tripping and opening thecontacts.- The mechanism: Element to open and close thecontacts either manual or automatically.- The contacts: To open or close the main circuit.

The RCD constantly monitors the vectorial sum ofthe current passing through all the conductors. Innormal conditions the vectorial sum is zero (I1+I2=0)but in case of an earth fault, the vectorial sumdiffers from zero (I1+I2=Id), this causes theactuation of the relay and therefore the release ofthe main contacts.

Residual making and breaking capacity (I m)A value of the AC component of a residualprospective current which a RCCB can make, carryfor its opening time and break under specifiedconditions of use and behavior.Conditional residual short-circuit current (I c) A value of the AC component of a prospectivecurrent which a RCCB protected by a suitable SCPD(short-circuit protective device) in series, canwithstand under specific conditions of use andbehavior.Conditional short-circuit current (Inc) A value of the AC component of a residualprospective current which a RCCB protected by asuitable SCPD in series, can withstand underspecific conditions of use and behavior.Residual short-circuit withstand currentMaximum value of the residual current for which theoperation of the RCCB is ensured under specifiedconditions and above which the device can undergoirreversible alterations.Prospective currentThe current that would flow in the circuit, if eachmain current path of the RCCB and the overcurrentprotective device (if any) were replaced by aconductor of negligible impedance.Making capacityA value of AC component of a prospective currentthat a RCCB is capable to make at a stated voltageunder prescribed conditions of use and behavior.Open positionThe position in which the predetermined clearancebetween open contacts in the main circuit of theRCCB is secured.Close positionThe position in which the predetermined continuityof the main circuit of the RCCB is secured.Tripping timeThe time which elapses between the instant whenthe residual operating current is suddenly attainedand the instant of arc extinction in all poles.Residual current (I n)Vector sum of the instantaneous values of thecurrent flowing in the main circuit of the RCCB.Residual operating currentValue of residual current which causes the RCCBto operate under specified conditions.Rated short-circuit capacity (Icn) Is the value of the ultimate short-circuit breakingcapacity assigned to the circuit breaker.(Only applicable to RCBO)Conventional non-tripping current (Int)A specified value of current which the circuitbreaker is capable of carrying for a specified timewithout tripping. (Only applicable to RCBO)Conventional tripping current (It)A specified value of current which causes the circuitbreaker to trip within a specified time.(Only applicable to RCBO)

Test resistor

Secondarywinding

Test-button

Contacts

Trippingmechanism

Relay

Coretransformerand primarywinding

Definitions related to RCD’sRCCB = Residual Current Circuit Breakerwithout overcurrent protection

RCBO = Residual Current Circuit Breakerwith overcurrent protection

Breaking capacityA value of AC component of a prospective current thata RCCB is capable of breaking at a stated voltageunder prescribed conditions of use and behavior.

Redline

T2

T2.8

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RCD’s classification acc. EN/IEC 61008/61009RCD’s may be classified according to:• The behavior in presence of dc current

(types for general use).- Type AC- Type A

• The time-delay (in presence of residual current)- RCD’s without time delay: type for general use- RCD’s with time delay: type S for selectivity

Type AC The type AC RCDs are designed to release withsinusoidal residual currents which occur suddenly orslowly rise in magnitude.

Residual current

0.5 x l n1 x l n2 x l n5 x l n

Tripping time

t = t = < 300mst = < 150mst = 40ms

Tripping curve type AC

Tripping curve type A

Type A Certain devices during faults can be the sourceof non-sinusoidal earth leakage currents(DC components) due to the electroniccomponents e.g.: diodes, thyristors…..The type A RCD’s are designed to ensure that underthis conditions the residual current devices operateon sinusoidal residual current and also withpulsating direct current(*) which occur suddenlyor slowly rise in magnitude.

(*) Pulsating direct current: current of pulsating wave form which assumes, ineach period of the rated power frequency, the value 0 or a value notexceeding 0,006 A dc during one single interval of time, expressed inangular measure of at least 150º.

Residual current Tripping time

0.5xI n t = 1 xI n t = < 300ms2 xI n t = < 150ms5 xI n t = < 40ms

At point of wave 0°0.35xI n t = 1.4 xI n t = < 300ms2.8 xI n t = < 150ms7 xI n t = < 40ms



1. For sinusoidal residual current

2. For residual pulsating direct current

min.150°

min.150°

max.6mA

max.6mA

Type A

Type AC

T2

T2.9

Technical Data

Selectivity

Vertical selectivityIn an installation with RCD’s installed in series weneed to pay special attention to the verticalselectivity, in order to ensure that in case of earthleakage only the RCD which is immediatelyupstream of the fault point will operate.Selectivity is ensured when the characteristic

time/current of the upstream RCD (A) is above thecharacteristic time /current of the downstream RCD(B). To obtain vertical selectivity we should take intoconsideration the following parameters:The RCD placed at the top of the installation shallbe Type S. The residual operating current of theRCCB installed downstream shall have a lowerresidual operating current than the RCD installedupstream according to:

I n downstream < I n upstream/3

Horizontal selectivityTo have horizontal selectivity in an installation withRCD’s we need to avoid the use of RCD incascading. Every single circuit of the installationshall be provided with a RCD of the appropriateresidual operating current. The connection betweenthe back-up protective device and the RCD must beshort-circuit proof (Class II).

Type S SRCD’s type A or AC have instantaneous tripping. Inorder to provide full people protection in verticalinstallation (no class II) with more than one circuit,as well as to ensure the service in the installation incase of earth leakage in one of the circuits or toavoid unwanted tripping because of harmonics, highconnection currents due to the use of motors,reactive loads, or variable speed drivers, we need touse selective RCD’s at the top of the installation.Any RCD type S is selective to any otherinstantaneous RCD installed downstream with lowersensitivity.

Vertical selectivity

Horizontal selectivity

Short-circuit proof

➀ RCCB selective

➁ RCCB instantaneous

RCCB30mA

RCCB30mA

RCCB300mAselective

RCCB30mA

RCCB100mA

Redline

T2

T2.10

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Nuisance trippingType AI (High immunity to nuisance tripping)Electric equipment incorporates more and moreelectronic components which causes nuisancetripping to the conventional 30mA RCD’s type Aor AC (always in the most critical moment likeweekends, areas with no people presence…) dueto overvoltages or high frequency currents producedby atmospheric disturbances, lighting equipment(electronic balasters), computers, appliances,connections to long cables which induce a highcapacity to ground, etc.

Some times the filter incorporated on the standardRCD’s type A or AC which are protected to preventnuisance tripping against current peak up to 250 A8/20 µs, does not avoid 100% unwanted tripping.Therefore GE Power Controls has developed a newRCD generation which protects against nuisancetripping of peak currents up to 5000 A 8/20 µs.

Installations with either lighting equipmentincorporating electronic balasters or computers.

The most typical problem in these installations is thetripping of the RCD when switching the equipmentON-OFF. It is recommended that, in case severaldevices are installed in the same line, the sum of allleakages shall not exceed 1/3 l n since anydisturbance in the line can trip the RCD. For this kindof installation it is recommended to split up circuits orto use type AI RCD’s.

RCD’s type AI or ACI have a tripping characteristicaccording to EN/IEC 61008/61009.

All RCD’s have a high level of immunity to transientcurrents, against current impulses of 8/20 µsaccording to EN/IEC 61008/61009 and VDE 0664.T1

Type A, AC .....................250 A 8/20 µsType S ..........................3000 A 8/20 µsType Ai .........................3000 A 8/20 µsType Si .........................5000 A 8/20 µs

010%

90%100%

50%

8us20us

Curve 8/20 µs

RCD’s have a high level of immunity against ringwave currents of high frequency according toEN/IEC 61008/61009

Curve 0.5 µs - 100 kHz - 200 A - EN/IEC 61008/61009

RCCB BPC/BDC

T2

T2.11

Technical Data

Product identification of an RCCB Series BPC/BDC and its use

Use of an RCCB

Information on product

Contact positionindicator

Toggle

Access to themechanism forextensions

Test-button

Example: RCCB 2P 25A 30mA Type A

Approvals

TypeOperates at -25°C

Reference number

Tripping characteristic

Rated current

Trade mark

Electric diagram

ON-OFF indicator

Rated voltage

Sensitivity

Redline

TEST-BUTTONTo ensure the correct functioning of the RCCB, thetest button T shall be pressed frequently. The devicemust trip when pressed.




T2.12

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ALL CABLES MUST BE CONNECTED TO THE RCCBAll conductors, phases and neutral, that constitutethe power supply of the installation to be protected,must be connected to the RCCB to either upper orlower terminals according to one of the followingdiagrams.

ACCESS TO THE MECHANISM FOR EXTENSIONS To couple extensions we need to remove the cap onthe right hand side, in order to get access to themechanism. It is possible to add any auxiliary contact, shunt trip,undervoltage release or motor operator, following thestack-on configuration of the extensions in chap. T3.

I-0N

T2

1 jan, 1 febr, 1 march,...

T2

T2.13

Technical Data

0-0FF

0-0FF

Use of an RCBO

Product identification of an RCBO series DM and its use


Example: RCBO 1P+N C16 30mA Type A

Test-button

Contact position indicatorAccess to the mechanismfor extensions

Toggle

Reference number

Tripping characteristic Type A

Trade mark

Type

Rated current

Rated short-circuitbreaking capacity I-on

Rated voltage

Sensitivity

Selectivity class

ON-OFF indicator

Redline

T2.14

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TEST-BUTTONTo ensure the correct functioning of the RCBO, thetest button T shall be pressed frequently. The devicemust trip when the test button is pressed.



I-ONContacts in closeposition. Ensurecontinuity in themain circuit.

TOGGLETo switch the RCBO ON or OFF

ACCESS TO THE MECHANISM FOR EXTENSIONS It is possible to add any auxiliary contact, shunt trip,undervoltage release or motor operator, following thestack-on configuration of the extensions in page C.3.

ALL CABLES MUST BE CONNECTED TO THE RCCBAll conductors, phase and neutral, that constitutethe power supply of the installation to be protected,must be connected to the RCBO to either upper orlower terminals according to the following diagram.


T2

T2.15

Technical Data

Product identification of an add-on RCD and its use

Example: Add-on RCD


Use of an add-on RCD

Busbar passthrough

Test-button

Toggle linked to the MCB

Terminal cover RCD

Sealing system MCB/RCD

Mobile connection wires

Codification for MCB

Trade mark

Operates at -25°C

Catalogue number

Electrical diagram

Brand name

ON-OFF indicator

Redline

T2

CONDITIONS FOR ASSEMBLYThe annex G of the EN/IEC 61009-1 standard says:- It shall not be possible to assemble a MCB of

a given rated current with an add-on RCD unitof a lower maximum current.

- It shall not be possible to assemble an add-onRCD with a MCB having no provision forswitching the associated neutral.

To comply with the mentioned conditions it isimplemented on the add-on RCD a codificationsystem which avoids any wrong assembly.

The correct assembly shall be done as follows:

T2.16

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T2.17

Technical Data

T2

TOGGLETo switch the add-on RCD ON or OFF. The toggle isoverlapped with the one of the coupled MCB andboth can be swithced on at the same time.

UNMANIPULATION SEALING SYSTEMTo seal the combination MCB/RCD once theassembly is finished. Any manipulation after sealingthe combined unit, visible damage will remain.

TERMINAL COVERSUnlosable terminal covers for the MCB bottom terminalsas well as for the RCD terminals are provided.

MOBILE CONNECTIONFor an easy and quick assembly theconnection wires are bi-stable

HOW TO ASSEMBLE ADD-ON RCD+MCBPlace the RCD andthe MCB along side

Pull down the one another, both inconnector block. OFF position.

Make sure the Push up the connectorcoupling is well done. block.

Maximum screwing Push up the MCB covertorque 4,5 Nm terminals

Once tested the correct electrical functioning of thecombined unit, seal the combined unit by means ofthe sealing button.

BUSBAR PASSTHROUGHThe add-on RCD permitts the passthrough of bothpin and fork busbars at the top terminals.

Redline

T2

T2.18

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ALL CABLES MUST BE CONNECTED TO THE RCBOIn order to protect the RCD in the proper way, it isrecommended to feed the combined unit (MCB/RCD)by the MCB (top terminals), in such a way the MCBprovides back up protection to the RCD.

All conductors, phases and neutral, that constitutethe power of the installation to be protected mustbe connected to the MCB/RCD combination.

ACCESS TO THE MECHANISM FOR EXTENSIONSIt is possible to add any auxiliary contact, shunt trip,undervoltage release or motor operator on the lefthand side, following the stack on configuration ofthe extensions in chap. T3.

TEST-BUTTONTo ensure the correct functioning of the RCBO,the test-button T shall be pressed frequently.The device must trip when the test button is pressed.


T2.19

Technical Data

T2

Easy DIN-rail extraction

RCCB’s can easilly be removed from the DIN railwhen installed with busbars just taking intoconsideration the following instructions.

➀ Open the terminals totally

➁ Unclick the DIN rail clip

➂ Lift the RCCB up and remove

it from the DIN rail

Pin and fork busbar - bottom terminals

Redline

T2

T2.20

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Product related information

Influence of air ambienttemperature in the ratedcurrentInfluence of temperature in RCCB

The maximum value of the current which can flowthrough a RCCB depends of the nominal currentas well as the ambient air temperature. Theprotective device placed up-stream of the RCCBmust ensure the disconnection at the values inthe following table:

Influence of temperature in RCBO’s

The thermal calibration of the RCBO was carriedout at an ambient temperature of 30°C. Ambienttemperatures different from 30°C influence thebimetal and this results in earlier or later thermaltripping.

In

16 A25 A40 A63 A80 A100 A125 A

25°C

1931487697121151

30°C

1828446988110137

40°C

1625406380100125

50°C

142336577290112

60°C

132532516581101

0.5 - 6A

10A

16 - 40A

T2

T2.21

Technical Data

Tripping current as afunction of the frequency All the RCD’s are designed to work at frequencies of50-60 Hz, therefore to work at different values, wemust consider the variation of the tripping sensitivityaccording tables below. It should be taken intoconsideration that there is a no tripping risk whenpushing the test-button, due to the fact that suchaction is made by means of a internal resistor witha fixed value.

RCCB Series BDC/BPC/BPA/BPS and Add-on RCD DOC10 Hz

3.630.750.620.80

7.574.503.563.24

30 Hz

1.500.740.710.72

2.401.851.551.39

50 Hz

0.800.800.800.80

0.750.750.750.75

100 Hz

1.631.181.151.15

1.631.221.180.95

200 Hz

2.401.691.451.52

2.532.172.1012.17

300 Hz

3.0321.841.79

3.704.354.4025.40

400 Hz

4.632.462.162.12

9.2310.8517.1033.06

Type AC

30mA100mA300mA500mA

Type A

30mA100mA300mA500mA

RCBO Series DM/DMA10 Hz

0.620.740.801.10

8.176.816.204.34

30 Hz

0.650.710.740.81

3.132.712.161.53

50 Hz

0.800.800.800.80

0.750.750.750.75

100 Hz

0.910.950.970.89

1.701.430.490.39

200 Hz

1.241.161.191.18

3.102.350.870.59

300 Hz

1.551.381.441.38

3.522.580.740.62

400 Hz

1.881.591.641.68

3.672.710.950.64

Type AC

30mA100mA300mA500mA

Type A

30mA100mA300mA500mA

Redline

T2

T2.22

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Protection of RCCBRCCB’s are not overcurrent protected. Therefore wedon’t need to consider both protection againstshort-circuits and overloads.

Protection against short-circuitsCOORDINATION OF RCCB’s WITH MCB’s ORFUSES, BACK-UP PROTECTION

RCCB’s protected with a SCPD have to be able towithstand, without damage, short-circuit currentsup to its rated conditional short-circuit capacity. The SCPD has to be carefully selected, since theassociation of this device with the RCCB isinterrupting the short-circuit of the installation.

The value of the presumed short-circuit current atthe point where the RCCB is installed shall belower than the values of the following table:

The values indicated in the table are the maximumshort-circuit current in kA rms.For RCCB’s 2P 230V c.a. and 4P 400 V c.a.

The RCCB and the protective device must beinstalled in the same switchboard, paying specialattention to the connection between these twodevices since if the SCPD is installed downstreamof the RCCB such a connection must be short-circuit proof.SCPD = Short-Circuit Protective Device.

G60up to 40A

6 kA

–

–

100 kA

G10040A

10 kA

25 kA

25 kA

100 kA

GT25> 40A

10 kA

25 kA

25 kA

100 kA

GT2540A

10 kA

25 kA

25 kA

100 kA

GT25> 40A

10 kA

25 kA

25 kA

100 kA

Hti80...125A

–

10 kA

10 kA

100 kA

S90

25 kA

25 kA

25 kA

100 kA

Fuse160A

–

16 kA

10 kA

100 kA

Fuse250A

–

10 kA

10 kA

100 kA

Fuse400A

–

10 kA

10 kA

100 kA

Fuse630A

–

10 kA

10 kA

100 kA

RCCBEFI/EHFI

UPSTREAM PROTECTIONMCB'S FUSES

DO

WN

STR

EA

M G6025A

G10025A

G100> 25AFuse25A

MCB or fuse RCCB MCB

Short-circuit proof

RCCB co-ordination with MCB or fuses

T2

T2.23

Technical Data

Power lossesThe power losses are calculated by means ofmeasuring of the voltage drop between theincoming and the outgoing terminal of the deviceat rated current.

Power loss per pole:

Power losses per pole RCCB BDC/BPC/BPAIn (A)Z (mOhm)Pw (W)

169.942.55

253.752.33

402.153.43

631.305.15

801.308.30

1000.878.70

Power losses per pole RCBO DM/DMAIn (A)Z (mOhm)Pw (W)

4125.002.00

653.001.91

1016.301.63

169.802.51

207.102.84

255.603.50

324.704.81

403.605.76

Power losses per pole MCB G Add-on RCD DOCIn (A)Z (mOhm)Pw (W)

645.41.6

1017.41.7

1313.72.3

1611.93

208.73.5

256.94.3

324.84.9

403.65.8

502.97.3

632.49.6

Power losses per pole RCBO DME/DMAEIn (A)Voltage dropZ (mOhm)Pw (W)

60.2643.61.57

80.1619.41.242

100.1615.61.56

130.15511.92.011

160.16210.12.566

200.1386.92.76

250.1285.13.188

320.09633.188

400.12.54

500.091.84.5

630 .0821.35.16

Redline

T2

T2.24

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RCBO let-through energy I2tThe limitation of an RCBO in short-circuit conditions,is its capacity to reduce the value of the let-throughenergy that the short-circuit would be generating.

Series DM - Curve C Let-through energy at 230 V

Let-t

hrou

gh e

nerg

y I2 t

(A2 s

)→

Prospective current Icc (kA) →

103

104

105

1 2 3 4 5 6 7 8 9 10

Let-t

hrou

gh e

nerg

y I2 t

(A2 s

)→


103

104

105

1 2 3 4 5 6 7 8 9 10

Series DM - Curve B Let-through energy at 230 V

B32B20

B13

B6

C32C20

C13

C6

B40B25B16B10

B4

C40C25C16C10

C4

T2

T2.25

Technical Data

Series DME - Curve C Let-through energy at 230 V

Let-t

hrou

gh e

nerg

y I2 t

(A2 s

)→


Let-t

hrou

gh e

nerg

y I2 t

(A2 s

)→


Series DME - Curve B Let-through energy at 230 V

Redline

T2.26

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T2Use of an RCBO

Product identification of an RCBO Series DME and its use


Test-button


Toggle

Circuit indicator

Example: RCBO 1P+N B16 30mA Type AC

Trade mark

Sensitivity

Brand name

Reference number

Electric diagram

Rated current proceededby the symbol of the

tripping curve

Rated voltage

Type

Rated short-circuit breakingcapacity and selectivity class

ON-OFF position

T2.27

Technical Data

T2

TEST-BUTTONTo ensure the correct functioning of the RCBO, thetest-button T shall be pressed frequently. Thedevice must trip when the test-button is pressed.




TOGGLETo switch the RCBO ON or OFF

CABLE CONNECTIONThe power supply (L) must be done at the bottomterminal, and the supply Neutral flying cable (black)shall be connected to the Neutral bar.Load connection shall be done in both terminals atthe top side (L out / N out).The earth reference cable (FE white) ensuresprotection against earth leakage in case of loss ofsupply Neutral.


N flying lead (black)

FE flying lead (white)(Earth reference)

Redline

T2

T2.28

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RCBO tripping curves acc. EN/IEC 61009In the following tables it is possible to see the averagetripping curves of the RCBO’s in function of the thermalcalibration as well as of the magnetic characteristic.

Curve B

Curve C

x In

x In

T2.29

Technical Data

T2

Text for specifiers

RCCB-According to EN/IEC 61008 standard.- Intended to detect residual sinusoidal currents (type AC)or residual pulsating direct currents (type A).

-Resistance against nuisance tripping accordingto VDE 0664 T1 and EN/IEC 61008.

-Working ambient temperature from –25°C up to +40°Cfor type A and from –5° C up to +40°C for type AC.

-Approved by CEBEC, KEMA...-The RCCB are 2P and 3P+N with 2 and 4 modules wide.-The Neutral pole in the 3P+N RCCB is on the righthand side. The N pole closes first of all poles andopens last of all poles.

-Nominal rated currents are: 16, 25, 40, 63, 80*A.-Nominal residual currents are: 10, 30, 100, 300, 500 mA.-The test circuit is protected against overloads.-All RCCB’s have a minimum short-circuit resistanceof 10kA when they are back-up protected by meansof MCB’s or fuses.

-The making and breaking capacity is 500 A.-The residual making and breaking capacity is 1.500 A.-Terminal capacity from 1 up to 50 mm2 rigid wire or1,5 up to 50 mm2 flexible wire.

-The devices 10,30,100 mA type A or AC have alwaysvertical selectivity with devices 300 mA type S.

-The selective types have a delayed tripping time incomparison with the instantaneous ones (type A, AC)with sensitivity lower than 300mA.

-Both incoming and outgoing terminals have aprotection degree of IP20 and are sealable.

- Isolator function due to the printing Red/Green onthe toggle.

-Auxiliary contacts can be added on the right hand side.-RCCB’s can be released by means of shunt trip orundervoltage release.

-RCCB’s can be remotely controled by means of amotor operator.

Add-on RCD-According to EN/IEC 61009 standard.- Intended to detect residual sinusoidal currents(type AC) or residual pulsating direct currents (type A).

-Resistance against nuisance tripping according toVDE 0664 T1 and EN/IEC 61009.

-Working ambient temperature from –25°C up to +40°Cfor type A and from –5°C up to +40°C for type AC.

-Approved by CEBEC, KEMA…-Add-on RCD widths are:

2P - 2 modules 32 A & 63 A3P - 2 modules 32 A & 4 modules 63 A4P – 2 or 4 modules 32 A & 4 modules 63 A

-Nominal rated currents are: 0,5 – 63 A & 80 – 125 A-Nominal residual currents are: 30, 100, 300, 500,1000 mA.

-The test circuit is protected against overloads.-The short-circuit capacity depends on theassociated MCB:

G30 ............3000 A G60 .............6000 AG45 ............4500 A G100 ...........10000 A

-The residual making and breaking capacitydepends of the associated MCB:

G30 ............3000 A G60 .............6000 AG45 ............4500 A G100 ...........7500 A

-Terminal capacity:2P-2 modules 32 A & 63 A .....................35 mm2

3P-2 modules 32 A.................................16 mm2

3P-4 modules 63 A.................................35 mm2

4P-2 modules 32 A.................................16 mm2

4P-4 modules 32 A & 4 modules 63 A ....35 mm2

-The devices 10, 30, 100 mA type A or AC have alwaysvertical selectivity with devices 300 mA type S.

-The selective types have a delayed tripping time incomparison with the instantaneous ones (type A,AC) with sensitivity lower than 300 mA.

-Both incoming and outgoing terminals (MCB+Add-on RCD) have a protection degree of IP20 and theyare sealable.

-A codification system between MCB and RCDavoid a incorrect assembly (i.e. MCB 50 A coupledwith RCD 32 A).

-Auxiliary contacts can be added on the left handside of the MCB part.

- It can be released by means of shunt trip or under-voltage release.

- It can be remotely controled by means of a motor operator.The toggle of MCB and RCD are independent, so it ispossible to identify the reason of the release.

RCBO-According to EN/IEC 61009 standard.- Intended to detect residual sinusoidal currents (type AC)or residual pulsating direct currents (type A).

-Resistance against nuisance tripping according toVDE 0664 T1 and EN/IEC 61009.

-Working ambient temperature from –25°C up to +40°Cfor type A and from –5°C up to +40°C for type AC.Approved by CEBEC, KEMA…

-The RCBO 1P+N is 2 modules wide or 1 module wide.-The Neutral pole is on the left hand side. The N polecloses first of all poles and opens last of all poles.

-Nominal rated currents are: 4 up to 40 A.-Characteristic B & C.-Nominal residual currents are: 10, 30, 100, 300, 500,1000 mA.

-The test circuit is protected against overloads .-The short-circuit capacity is 10 kA, with selectivity class 3.-The making and breaking capacity is 500 A-The residual making and breaking capacity is 7500 A.-Terminal capacity from 1 up to 25 mm2 rigid in thetop terminals and from 1 up to 35 mm2 in thebottom terminals.

-The devices 10, 30, 100 mA type A or AC have alwaysvertical selectivity with devices 300 mA type S.

-Both incoming and outgoing terminals have aprotection degree of IP20.

- Isolator function due to the printing Red/Green onthe toggle.

-Auxiliary contacts can be added on the right hand side.-RCBO’s can be released by means of shunt trip orundervoltage release.

-RCBO’s can be remotely controled by means of amotor operator.

Redline

T2.30

Peo

ple

Pro

tect

ion

T2


RCCB’s - Series BP

Add-on RCCB - Series Diff-o-Click2P 32A2P 63A

3P 32A

4P 32A

T2.31

Dim

ensional drawings

T2

RCBO’s - Series DM RCBO’s - Series DME

Add-on RCCB - Series Diff-o-Click3P 63A

4P 63A

ElfaPlus

T3.1

T1

T2

T3

T4

Circuit Protection

People Protection

Add-on Devices

Comfort Functions

Display contact CADisplay contact CBShunt trip Tele LUndervoltage release Tele UMotor operator Tele MPPanel board switch PBSStack-on configuration

T3.2T3.5T3.6T3.8

T3.10T3.12T3.14

Redline

Add-on auxiliary devicesTechnical Data

T3.2

Add

-on

Dev

ices

T3

Redline

ExtensionsAll MCB’s (except G20) , RCCB’s (except Delta B)& RCBO’s are designed to accept the same familyof extensions.

The extensions intended to be coupled to a maindevice are the following:

- Display contacts- Shunt trip- Undervoltage release- Emergency release- Motor operator- Panel board switch

Display contactsThe display contact lets you know the real contactposition of the associated main device. It is alsopossible to know whether the associated devicehas been automatically released or it has beenmanually operated. The display contacts CA and CBfulfil the requirements of the EN/IEC 62019 & EN 60947-5-1 standards.

Display contact CA

Function HThe function H (changeover contact) is intended toprovide signalisation of the real status of the associ-ated main device (ON/OFF). While both devices are in the ON position there is

continuity between terminals 11-14, then whenpressing the display contact test button the conti-nuity changes over to terminals 11-12. Whenreleased, the contacts change over to the previousposition 11-14.

While both devices are in the OFF position there is

continuity between terminals 11-12, then when youpress the display contact test button, the continuitychanges over to terminals 11-14. When released,the contacts are change over to the previous posi-tion 11-12.

Function SThe function S (changeover contact) is intended to pro-vide signalisation of the real status of the associatedmain device in case it releases automatically only.The contacts do not change position during manualoperation.

Display contacts

ContactsMaximum current AC 14 240 V A

DC 12 60 V A48 V A24 V A

Minimum application voltage AC VDC V

Minimum application current AC mADC mA

Short-circuit resistanceProtected by fuses 6A gG AProtected by MCB C6 or B6 A

Electrical endurance (operations)Terminal capacity rigid cable mm2

flexible mm2

Terminal capacity for 2 rigid cables mm2

Torque Nm

CA / CB

Silver5124242410

200

1.0001.00010.0001 - 2.5

0.75 - 2.52 x 1.5

0.5

CA G

Gold51241212225

1.0001.00010.0001 - 2.5

0.75 - 2.52 x 1.5

0.5

Main device ON

Normal working status

ContactsFunction Toggle

While pushing TEST button


Main device OFF



While pushing TEST button


T3.3

Technical Data

T3

While both devices are in the ON position there iscontinuity between terminals 95-96, then when youpress the display contact test button the continuitychanges over to terminals 95-98. When released,the contacts change over to the previous position95-96.

In the case of both devices being in the OFF position,it is needed to identify whether they have beenmanual operated or it was an authomatic release.

Manual operationThe contact positon of the display contact has notchanged. There is continuity between terminal 95-96. When pressing the display contact test button,the continuity is changing over to terminals 95-98.When stop pressing, the contacts change over tothe previous position 95-96.

Automatic releaseThe contact position of the display contact haschanged. There is continuity between terminals 95-98. When pressing the display contact reset button,the continuity is changing over to terminals 95-96,and it remains in that position even when released.

How to change the function S or HCan be easily done before coupling it to the maindevice by using of a screwdriver to rotate the knobplaced at the left-hand side of the auxiliary. An indi-cation of the function appears at the window locat-ed in the upper shoulder.

➀ For the H function the terminals will be 11-12-14➁ For the S function the terminals will be 95-96-98

Test & reset functionTest functionAllows testing of the control circuit (unstable chang-ing of contact position) by moving the front buttonup or down, without effecting the electrical situation(ON/OFF) of the main device.

Reset functionBy electrically switching off of the main device (dueto overload, short-circuit or earth fault current), thechangeover contact switches: a red line appears inthe front button (visible indication of electrical fault inthe installation). The changeover contact can be resetby pushing the test button down without changingthe electrical situation (ON/OFF) of the main device.

Gold plated contactsGold plated contacts are intended to be used in cir-cuits with either low voltage (<24V) or low current(<200mA).

Main device ON


Contacts

Test button pressed


Main device OFFManual operated


Test button pressed



Test button pressed

Contacts

Function Toggle


Main device OFFAutomatic release


Function Toggle

T3.4

Add

-on

Dev

ices

T3

Redline

How to couple to the maindeviceThe display contact (CA H and CA S/H) can easilybe coupled either to the right or the left-hand sideof the main device.

The display contacts are delivered as standard to becoupled on the right-hand side of the main device.

The coupling on the left-hand side of any device canbe easily done according the following instructions.

Attach the display contact tothe main device, with bothtoggles in OFF position.

Click the two coupling partsinto position.

Attach the display contact tothe main device, with bothtoggles in OFF position.

Click the two coupling partsinto position.

OA Move the metal pin on thetoggle to the right-hand side.

OB Move and click the squaredplastic pin to right-hand side.

T3.5

Technical Data

T3

Display contact CBThis device has a double function with one auxiliarycontact H (bottom terminals) plus a changeable sig-nal/auxiliary contact S/H (top terminals).

The functions H and S/H work identically to thefunctions of the CA displays.The CB display contact does not permit the busbarto passthrough. There are two versions: one to beassembled to the right hand side of the main deviceand another one to be added on the left hand side.Does not permit the stack-on configuration.

With the help of a screw-driv-er, remove the mechanismblock from the base.

Insert the mechanismblock into the base.

Turn the base 180°.

The display contact CA allows the passthroughof the PIN or FORK type busbars when they areinstalled at either the top or bottom terminal of themain device. The CA display is delivered to allow the busbarpassthrough at the bottom terminal. If you need bus-bar passthrough at the top terminals this can beachieved easily thanks to the innovative system base+ contact block which allows the installer of thebase position (busbar passthrough at top or bottomterminal).

How to couple to the maindeviceThe display contact CB can be easly coupled on theright-hand side (CB SH/HH-R) or on the left-handside (CB SH/HH-L) by placing the auxiliary contactand the main device one to another with both tog-gles in the OFF position.

T3.6

Add

-on

Dev

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T3

Redline

Shunt trip Tele LThe Tele L allows you to switch off any MCB, RCCB, orRCBO by means of push-buttons or any other auto-matic management processors. A built-in contact inseries with the coil prevents burning damage if the volt-age remains. A built-in contact provides signalisation ofthe device status (open/close).

How to couple to the main deviceThe shunt trip can easily be coupled either to the rightor the left-hand side of the main device (see fig. 1 and2). The shunt trip (Tele L) can be coupled on the right-hand side of the main device (see fig. 1).

Application examples

Nominal voltage AC VNominal voltage DC VMinimum voltage AC / DC VClosing current 110 V A

240 V A415 V A48 V A24 V A

Operating time 110 V ms240 V ms415 V ms48 V ms24 V ms

Coil impedanceElectrical endurance (operations)Terminal capacity rigid cable mm2

flexible cable mm2


Torque Nm

Tele L 1

110 to 415110 to 125

0.85 Un0.30.61--

1042--

2902.0001 - 2.5

0.75 - 2.52 x 1.5

0.5

Tele L 2

24 to 6024 to 480.85 Un

---21---

10424

2.0001 - 2.5

0.75 - 2.52 x 1.5

0.5

fig.1 To couple on the right-hand side

Place the shunt trip next tothe main device with bothtoggles in OFF position.

Lock the coupling clips at the top,bottom and rear into position.

T3.7

Technical Data

T3

fig.2 To couple on the left-hand side: can be easily done according to the following instructions.

Busbar connection: the shunt trip Tele L allows the use of the PIN or FORK type busbars at the bottomterminals as well as the use of the PIN type busbars at the top terminals.

O1 With the help of a screwdriver, push the toggle pin to theright-hand side.

O5 Remove the metal pin onthe left-hand side.

O2 Place the shunt tripto the main device

O3 with both toggles inOFF position.

O4 Lock the coupling parts in top and bottom as wellas the coupling part in the back side into position.

T3.8

Add

-on

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T3

Redline

Undervoltage release Tele UThe Tele U releases the main MCB, RCCB, RCBO ormodular switch in case the power supply dropsbelow 0.5xUn. Time delay adjusting up to 300 ms.The Tele U can be switched on, once the voltagerises over 0,8xUn.

How to couple to the main deviceThe undervoltage release can easily be coupled eitheron the right or the left-hand side of the main device.(see fig. 1 and fig. 2).The undervoltage release is designed to be coupledon the right-hand side of the main device (see fig. 1).

Time delay selectorIn order to avoidunwanted trippingdue to microcut inthe power supply, itis possible to delaythe tripping time ofthe Tele U from 0up to 300ms.

Application examples

Nominal voltage AC / DC VTripping voltage V

Tripping time msPower consumption VAFrequency Hz HzElectrical endurance (operations)Terminal capacity rigid cable mm2

flexible cable mm2


Torque Nm

Tele U1212

0.5 Un(±10%)0 - 300

3 50 - 60 2.000 1 - 2.5

0.75 - 2.5 2 x 1.5

0.5

Tele U24 24

0.5 Un(±10%)0 - 300

3 50 - 60 2.000 1 - 2.5

0.75 - 2.5 2 x 1.5

0.5

Tele U48 48

0.5 Un(±10%)0 - 300

3 50 - 60 2.000 1 - 2.5

0.75 - 2.5 2 x 1.5

0.5

Tele U230 230

0.5 Un(±10%)0 - 300

3 50 - 60 2.000 1 - 2.5

0.75 - 2.5 2 x 1.5

0.5

Place the undervoltage releaseto the main device, with bothtoggles in OFF position.

Click the coupling parts intop and bottom as well asthe coupling part in theback side into position.


T3.9

Technical Data

T3

White indicatorToggle in ON position: the undervoltage releaseis working normally

Toggle in OFF position: the undervoltage release hasbeen manually operated

Blue indicatorThe undervoltagerelease has been elec-trically activated

fig.2 To couple on the left-hand side: can be easily done according to the following instructions.

Busbar passthrough: the undervoltage release allows the passthrough of the PIN or FORK type busbars atthe bottom terminals as well as the passthrough of the PIN type busbars at the top terminals.

Tripping indicator: provides local information of the device status.

O1 With the help of a screwdriver, push both trippingpin and toggle pin to the right-hand side.

O3 Place the undervoltagerelease to the maindevice, with both togglesin the OFF position.

O6 Click the coupling parts in top and bottom as wellas the coupling part in the back side into position.

T3.10

Add

-on

Dev

ices

T3

Redline

Motor operator Tele MPThe Tele M allows to open or close remotely anyMCB, RCCB, RCBO or modular switch by means ofpush-buttons or any other automatic managementprocessor (RCCO, PLC.)

The motor operator has a safety reset functionwhich blocks the I-ON function, in case the maindevice trips due to a fault in the installation (earthleakage, overcurrent, short-circuit).To switch on the main device after tripping it isneeded first to give the motor operator an impulsein O-OFF, then the motor can be operated normallyto switch ON.

How to couple to the main deviceThe motor operator Tele MP can easily be coupledeither to the right or the left-hand side of the maindevice. (see fig.1 and fig.2)

Application example

Motor driver

Nominal voltage AC VFrequency HzPower consumption VAClosing time msOpening time msImpulse time to open msImpulse time to close msNumber of operationsWorking temperature °CElectrical endurance operationsTerminal capacity rigid cable mm2

flexible cable mm2


Torque Nm

230 ±10%5035

< 500< 200> 50> 50120

-25 up to +5520.0001 - 2.5

0.75 - 2.52 x 1.5

0.5


Push the motor operator toggle over themain device toggle (maximum 1.5 mod-ules).

Place the motor operator next to the maindevice with both toggles in OFF position.

Lock the plastic and metal coupling clipsat the top, bottom and rear into position.

Remove the metal pin on the right handside of the motor.

T3.11

Technical Data

T3

ExtensionsExtensions can be added either on the left or theright-hand side of the motor operator according tothe following configuaration.

fig.2 To couple on the left-hand side

Push the motor operator toggle over themain device toggle (maximum 1.5 modules).

Place the motor operator next to the maindevice with both toggles in OFF position.

Lock the plastic and metal coupling clips atthe top, bottom and rear into position.

Remove the metal pin on the left-hand sideof the motor.

PadlockingThe motor operator can be blocked electrically inthe OFF position by means of a safety-sealing han-dle, which can be locked with one padlock.

T3.12

Add

-on

Dev

ices

T3

Redline

1. OA Remove the protective cover to gain access to the mechanism.

OB Remove the pin from the lodging.

2. Place the pin into position.

3. Place the panel board switch to the main device with the toggle in OFF position.

4. Click the two coupling parts into position.

5. The toggle of the main device can not be switchedON, if the button of the panel board switch is notpressed by the enclosure front cover.

6. The main device can be switched ON without theneed of placing the enclosure front cover into posi-tion, by pulling down the yellow part of the button.

7. The main device can be switched ON normally when the enclosure front cover is placed into theclosed position.

Panel board switch PBSThe panel board switch coupled to a main device isintended to switch off any MCB, RCCB or RCBO incase the front cover of the enclosure is removed.It is a mechanical safety device, which reduces therisk of electric shock in case of manipulation of thepanel board.

The panel board switch can easily be coupled eitherto the right or the left-hand side of the main device,according to the following instructions.

T3.13

Technical Data

T3

Stack-on configurationTo all MCB’s, RCCB’s and RCBO’s it is possible toadd extensions alongside taking into considerationthe following configuration.

Tele U Tele L

Tele LTele U 4 x CA

2 x CA Tele MP

CB

PBS

EP60EP100EP250

RCBO

Assembly on the left-hand side

CA Display contact H or S/HCB Display contact H + S/HTele L Shunt tripTele U Undervoltage releaseTele MP Motor operatorPBS Panel board switch

RCBO =Coupled MCB

and add-onRCBO

G20G30G45G60G100GT10GT25

T3.14

Add

-on

Dev

ices

T3

Redline

Tele L Tele U

Tele L Tele U4 x CA

Tele MP 2 x CA

CB

PBS

EP60EP100EP250

RCCB

RCBO

Tele L Tele U

Tele L Tele U4 x CA

Tele MP 2 x CA

CB

PBS

EP60EP100EP250

RCCB

RCBO

Assembly on the right-hand side

RCCBSeriesBP/BD

RCBOSeries DM

CA Display contact H or S/HCB Display contact H + S/HTele L Shunt tripTele U Undervoltage releaseTele MP Motor operatorPBS Panel board switch

G20G30G45G60G100GT10GT25

T3.15

Technical Data

T3


Shunt Trip Tele L Undervoltage Release Tele U

Motor Driver Tele MP

PBS - Panel board switch

Auxiliary - Series CA Auxiliary - Series CB

ElfaPlus

T4.1

T1

T2

T3

T4

T4.2T4.5

T4.10T4.13T4.18T4.21T4.23T4.25T4.29T4.32T4.35T4.44T4.55

Circuit Protection

People Protection

Add-on Devices

Comfort Functions

Aster - Switches and push-buttonsContax - ContactorsContax R - RelaysPulsar S - Impulse switchesPulsar TS - Staircase switchesPulsar T - Timing relaysClassic - Electromechanical timersGalax - Digital timersGalax LSS - Light sensitive switchesSeries T - TransformersSeries MT - Measurement instrumentsSurgeGuard - Surge arrestersDimensional drawings

Redline

Comfort functionsTechnical Data

Redline

Aster

Switches and push-buttons

IntroductionThe Aster family of devices covers 3 sub-families:- Switches and push-buttons 16 and 32A- Rotary switches 32, 40 and 63A- Mains disconnect switches in 40, 63, 80 and 100A.

FunctionThe 16 and 32A switches and push-buttons aremainly used to operate lighting and heatingequipment in the commercial sector. For example inwarehouses, shops, workshops, hospitals, etc.Rotary switches are mainly used as main switch.Also in case of motor-loads, this switch can be used.In case absolute safe disconnection is required, themains disconnect switch is to be used.

Switches and push-buttons FeaturesPhoto 1 shows the front view of the modularswitches and push-buttons.The main characteristics are printed in the upperpart of the device O1 These are:- Switching capacity- Operating voltage- Wiring diagram- 6-digit ordering codeRelated to the switching capacity, a 16 and a 32Afamily exists. All devices can be used up to 240V.For the on-off switches, a green-on and red-offindication on the toggle itself is present to indicatethe status of the switch O2 .

Alternatively, these devices are also available withan indication lamp O3 to indicate its status.Push-buttons are available both with O4 and without

O5 a lamp.The function of the circuit that is operated by theswitch or push-button can be indicated behind thecircuit indicator O6 i.e. hall, living, garage, … .The Pozidriv terminals O7 are clearly marked and areall captive.

Text for specifiers- The modular switches and push-buttons all have

the CEBEC approval mark- The 1, 2, 3 and 4-pole 16 and 32A switches are

available in only 1 module, while the 3 and 4-poledevices are also available in 2 modules

- All switches and push-buttons have a highinterrupting capacity thanks to the double contactinterruption per pole

- The captive Pozidriv terminals guarantee a solid,reliable connection for wires with a cross sectiongoing from 1.5 to 10mm2

- The terminals have an IP20 protection degree,- The devices are DIN-rail mountable- The switches and push-buttons are equipped with

a transparent circuit indicator- The short-circuit resistance is at least 3kV- The switches can be locked both in the on as well

as in the off-position.- Mains disconnect switches accept auxiliary

contact add-on right or left hand side.

T4.2

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photo 1

T4

O1

O2

O6 O6

O3

O7

O5O4

T4.3

Sw

itches and push-buttons

Rotary switchesFeaturesPhoto 2 shows the front view of the rotary switches.The main characteristics are printed in the upperpart of the device O1 . These are:- Rated current- Operating voltage- 6-digit ordering codeRelated to the switching capacity, versions in 32A,40A and 63A exist. All devices can be used up to 415V.

The Pozidriv terminals O2 are clearly marked, areall captive and can be sealed by means of aterminal cover.The disconnect function is visible at all timesby means of the handle.By using the shaft extension, the handle itself canbe mounted on the door of an enclosure, whilethe switch itself can be mounted on the DIN-railor panel (photo 3).

Two handles are available: a standard (black,see fig.1) and an emergency handle (red, see fig.2).

Important: In case the handle is mounted on the door, thepanel can only be opened when the handle is inthe OFF-position. The emergency handle can besealed by means of up to 3 padlocks.

Text for specifiers-The rotary switches all have theCEBEC and KEMA approval mark following IEC947.3- Due to its construction, the rotary switch can

securely interrupt and as such is a disconnectswitch. This, together with the high short-circuitresistance and the visible contact status, makes itpossible to use this switch as a main switch,

- The housing is made of thermoplastic materialwith a high creepage-current resistance

- The movable contacts of the switch are operatedas a paralel bridge with double interruption perpole. The short-circuit resistance is very high

- The rotary switches all have a width of 4 modules,- Shaft extensions with standard and emergency-

handles are available- The rotary switches can be padlocked in the off-

position- The terminals can be sealed by means of a

terminal cover

photo 3

fig.1

fig.2

T4

photo 2

O2

O1

Redline

Mains disconnect switchesFeaturesPhoto 4 shows the front view of the mainsdisconnect switches.The main characteristics are printed in the upperpart of the device O1 . These are:- Switching capacity- Operating voltage- Wiring diagram- 6-digit ordering codeRelated to the switching capacity, versions in 40,63, 80 and 100A exist. All devices can be used up to 440V.The red handle O2 draws the attention to the factthat this is a mains disconnect switch.

All types are equipped with 50mm2 safety terminals

O3 with captive Pozidriv screws. The terminalposition is aligned with the terminal-position of theMCB’s offering the benefit of interconnecting bothdevices with a pin or fork-type busbar.

Easy DIN-rail extraction as implemented on theMCB’s and RCD’s is also applicable due to thesame DIN-rail clip O4 .The function of the circuit that is operated by theswitch can be indicated behind the circuit indicator

O5 i.e. hall, living, garage, … .

Text for specifiers- The mains disconnect switches all have the

CEBEC approval mark- 1 pole per module- All switches have a high interrupting capacity

thanks to the double contact interruption per pole- The switches can be used as mains disconnect

switches- The captive Pozidriv terminals guarantee a solid,

reliable connection for wires with a cross sectiongoing from 6 to 50mm2

- The terminals have an IP20 protection degree- DIN-rail mountable- Equipped with a transparent circuit indicator- The short-circuit resistance is better than 3kV- The switches can be locked both in the on as well

as the off-position- The switches are suitable to be used in class

AC22- Auxiliary contact add-on possibilities on both

sides

T4.4

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T4

photo 4

O5

O4

O3

O2

O1

T4.5

Contactors

Contax

Contactors

FunctionContactors are electromechanically controlledswitches, mainly used to control high power single-or multi-phase loads while the control itself can be(very) low power.Typical applications are given in figure 1 to 3.

OperationAs long as the control circuit (coil) is energised, theNO-contacts are closed and the NC-contacts areopened. From the moment the control circuit is de-energised again, the contacts return to their restposition. NO-contacts are opened and NC-contactsare closed.

Features and benefitsIn photo 1, the front views of the 1, 2 and 3 modulecontactors are shown. The main characteristics of thedevice are printed in the upper part O1 . These are:- Switching capacity- Coil voltage- Wiring diagram- 6-digit ordering code

Related to switching capacity, a complete range isavailable: 20, 24, 40 and 63A. The 20A contactors havean AC-coil and as a consequence can only be used onAC. The 24, 40 and 63A-contactors all have a DC-coilwhich makes them absolutely noise-free (NO 50Hz-noise). A built-in rectifier bridge allows the use of AC aswell as on DC at all times. The coils of all contactors areprotected against over-voltages of up to 5kV by means ofa built-in varistor. Infrequently used coil voltages are alsoavailable. The flag O3 indicates whether or not the coil isenergised. The function of the contactor or the circuit thatis operated by the contactor can be indicated behind thecircuit indicator O4 i.e. hall, living, garage,… . The clearlymarked Pozidriv terminals O5 are all captive.Two NO or 1NO-1NC auxiliary contacts, used forremote indication of the contact position of thecontactor, are available for the 24, 40 and 63Acontactors (module types CTX 10 11 or CTX 10 20respectively). The auxiliary contacts can only bemounted on the left side of the device (photo 2).

fig.1 Start-stop of a mono-phase lamp-load

fig.2 Direct startup of cage motor

fig.3 Time-clock controlled on-offswitching of a 3 phase electrical heater

O5 O5

O3

O1 O1

O3O4

photo 1

photo 2

T4

T4.6

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Day-Night contactorsThis contactor was designed to be used in dualtariff (Day-Night) applications. The number oneapplication for this contactor is the control of anelectrical water heater (fig.4).

In general, a day-night contactor is controlled by anoutput contact of a dual-tariff meter. On and offimpulses, sent by the energy-supplier over thepowerline-network, are decoded in the meter andswitch the output contact to the on or off state,switching in its turn the day-night contactor on or off.

0-Auto-1-switchThe additional 0-Auto-1-switch allows the user tooverrule the normal operation of the contactor (fig.5).For normal operation, this switch is in the Auto-positionand the day-night contactor is operated by the outputcontact of the dual-tariff energy meter. In the exampleof the electrical water heater, the water will only bewarmed up during off-peak hours (i.e. at night withminimum price per kWh)

O-positionPutting the lever in the O-position completelyisolates the circuits controlled by the contactor, nomatter what the position of the output contact onthe dual-tariff meter, for example when the serviceis not required over a longer period.

1-positionWith the lever in this position, the contactor isforced to its ”on” position. In the example of theelectrical water heater, one would put the switch inthis position after coming back from holidays toforce the heating on if the switch was in the ”O”position during the holiday. Should, by coincidence,the user forget to switch the level to the auto-position again after the forced operation, the devicewill return automaticaly to the automatic operationas soon as the coil is energised (by the contact ofthe energy-supplier meter).

Switching capacityDepending on the type of load, the switchingcapacity of a contactor can change drastically.Indeed, the interrupting capacity of any switch, notonly a contactor, is quite different for DC than forAC or for pure ohmic loads than for inductive orcapacitive loads. Tables 1 and 2 indicate themaximum current/power that the different contactor-families can switch reletive to the type of load.Typically for lighting applications, table 3 indicatesin detail the number of lamps or transformers eachfamily of contactors is capable of switching, reletiveto the power per unit. As always, these figures areper phase and at 230V-50Hz.

T4

Redline

fig.4

fig.5

0-Auto-1-switch

Switching of heaters and motors (table 1)CTX 20

20A

4.0 kW--

9A

1.3kW--

CTX 24

24A

5.3 kW9.0 kW16.0 kW

9A

1.3 kW2.2 kW4.0 kW

CTX 40

40A

8.7 kW16.0 kW26.0 kW

22A

3.7 kW5.5 kW11.0 kW

CTX 63

63A

13.3 kW24.0 kW40.0 kW

30A

5.0 kW8.0 kW15.0 kW

Two current paths connected parallel permit 1.6 x Ie (AC-1)

AC-1/AC-7a Switching of heatersRated operational current Ie

Rated operational power230 V 1230 V 3 400 V 3

AC-3/AC-7b Switching of motorsRated operational current Ie

Rated operational power230 V 1 230 V 3 400 V 3

T4.7

Contactors

Type

CTX 24

CTX 40

CTX 63

1 currentpath

24.0 A21.0 A17.0 A7.0 A0.9 A

40.0 A23.0 A18.0 A8.0 A1.0 A

50.0 A25.0 A20.0 A9.0 A1.1 A

3 currentpaths series

24, 0 A24.0 A24.0 A24.0 A13.0 A

40.0 A40.0 A40.0 A30.0 A15.0 A

63.0 A63.0 A60.0 A33.0 A17.0 A


24.0 A18.0 A14.0 A6.5 A1.0 A

40.0 A20.0 A16.0 A7.0 A1.1 A

44.0 A22.0 A18.0 A8.0 A1.2 A

T4

Lamp type

Incandescent lamps

Fluorescent lamps

High presure mercuryvapor lampseg. HQL, HPL

Lamps with electronicpower supply units

In (A)0.260.430.871.32.174.35

0.350.370.430.540.671.51.5

2x0.132x0.222x0.242x0.342x0.652x0.75

0.110.130.220.240.650.650.75

0.610.81.152.153.255.47.58

0.280.410.651.221.953.454.85.45

CTX 2425157531

302620161255

2x262x202x162x122x52x5

8786522

1410742111

54321--1

24181611148

CTX 6383502516105

15514010585602828

2x1402x1052x852x602x282x28

67606750431717

5038261410644

4337261510542

764847294624

Ratedoperationalvoltage Ue

24 VDC48 VDC60 VDC110 VDC220 VDC



DC-1 (L/R 1ms)


24.0 A24.0 A24.0 A16.0 A4.5 A

40.0 A40.0 A32.0 A17.0 A5.0 A

63.0 A43.0 A35.0 A19.0 A5.5 A


24.0 A24.0 A24.0 A16.0 A4.0 A

40.0 A40.0 A34.0 A18.0 A4.5 A

63.0 A47.0 A38.0 A21.0 A5.0 A

1 currentpath

16.0 A8.0 A4.0 A1.6 A0.2 A

19.0 A10.0 A5.0 A1.8 A0.3 A

21.0 A11.0 A5.5 A2.0 A0.3 A

Switching of DC (table 2)DC-3 (L/R 2ms)

Watt601002003005001000

1520404265115140

2x202x402x422x652x1152x140

1520404265115140

50801252504007001000

2000/400V

50801252504007001000

2000/400V

1x182x181x362x361x582x58

CTX 2021137431

252217131044

2x222x172x132x102x42x4

6564411

127531---

4321----

158127116

CTX 405432161163

100856552401818

2x852x652x522x402x182x18

151415121044

362719107433

108633112

553434203217

(µF)

4.55

4.5671818

78101825456035

Permitted number of lamps per phase (230 V, 50 Hz) for contactor typeLamp data Capacitor

Switching for lamp load (table 3)

uncompensated and series compensation

two-lamp circuit

parallel compensation

uncompensated


Permitted number of electropower supply units per phase

Redline

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Lamp type

Metal-halogen lampseg. HQI, HPI

Low pressure sodium vapor lamps

High pressure sodiumvapor lamps

Transformers for halogen low voltage lamps

Rated currentRated operational current Ie at AC-15 for 240 V

415 V500 V

Minimum current density

In (A)

0.531

1.83

3.59.516.510.518

0.250.450.751.52.55.811.56.611.6

1.51.52.43.53.33.32.3

0.310.420.630.94

11.161.32

1.83

3.74.710.3

0.831.52

2.46.3

CTX 24

105321----

53111----

8853335

111---1

4321-

11---

52241612964

CTX 63

382011762121

30189762121

30301913141420

15151078812

20151084

159762

174805443292314

parallel compensated

Watt

357015025040010002000

2000/400V3500/400V

357015025040010002000

2000/400V3500/400V

355590135150180200

355590135150180200

1502503304001000

1502503304001000

Watt205075100150200300

CTX 20

---------

---------

5532223

-------

-----

-----

40201310753

CTX 40

28148541121

115322--1-

22221310101014

4432223

159863

3221-

11050352719149

(µF)

6122033359514858100

20203045404025

20334048106

Permitted number of transformers per phase (230 V, 50 Hz)Transformer data

parallel compensated

uncompensated


uncompensated

Lamp data Permitted number of lamps per phase (230 V, 50 Hz) for contactor type Capacitor

Table 3 (continued)

CTX 06 11CTX 06 20

6A4A3A2A

12 V, 300 mA

Auxiliary contact (table 4)

uncompensated

T4

T4.9

Contactors

fig.8AEndurance curve(Operations vs. switching-off current)AC-1/400 V 3- for CTX 24, 40, 63AC-1/230 V 1- for CTX 20

fig.8BEndurance curve(Operations vs. switching-off current (kW))AC-3/400 V 3- for CTX 24, 40, 63AC-3/230 V 1- for CTX 20

ExampleAn electrical heater (4.4kW, 230V, single phase) isused for 200 days per year. As an average, thethermostat switches 50 times a day on and off(= 100 operations).The total number of operations per year is 20000(200 days x 100 operations/day).The current this heater draws is roughly 20A.In this case,- a 20A contactor will operate for 7.5 years

(150000 / 20000),- a 24A contactor will operate for 9 years



(540000 / 20000).

General remarks- Using contactors at low voltage, and especially

when several devices can be operatedsimultaneously, ultimate care should be taken to thecorrect dimensioning of the step-down transformer.

- When several adjacent contactors are continuouslyenergised (1 hour and more), the heat dissipationcould influence the correct operation in a negativeway. To avoid this, a spacer module should beinstalled between every third and fourth device(type designation CTX SP). This is not applicablefor the 20A-contactors.

Text for specifiers- Contactors all have a silent operation and

therefore are preferably equipped with a DC-coil.- An internal bridge rectifier allows the contactor to

be used on AC (from 40 to 450Hz)as well as onDC (except for the 20A-contactor).

- The capacity of the load-terminals is from 1.5 to10mm2.

- The capacity of the control-terminals is from 0.5to 4mm2.

- The contactors are equipped with a flag whichindicates the position of the coil (contacts).

- The protection-degree of the contactor is IP20.- The devices are modular and DIN-rail mountable.- Auxiliary contacts as well as spacers for heat

dissipation are available.- The power-supply voltage is allowed to vary in the

range of 106%xUn …. 80%xUn withoutinfluencing the correct operation of the device.

- Day-Night contactors are available; thesecontactors have a 0-Auto-1 switch for manualoperation. This switch cannot be blocked in the1-position.

- The contactor is equipped with a transparentcircuit indicator.

EnduranceIn general, the guaranteed number of operations atnominal load in AC1 is called the electrical service life.The Contax and Contax DN contactors all have anelectrical service life of 150000 operations (Note:1 cycle = NO NC NO = 2 operations).However, if the load of the contactor is less than itsnominal load, also the erosion of the contacts willbe less and as a consequence, the electrical servicelife will increase.The graphs in figure 8 show the relation betweenthe number of operations and the maximum loadallowed to obtain this life expectancy.

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FeaturesPhoto 1 shows the front view of a 1 and 2 modulerelay.The main characteristics are printed in the upperpart of the device O1 . These are:- Switching capacity- Coil voltage- Wiring diagram- 6-digit ordering code.Related to the switching capacity, only a 16A-familyexists. As can be seen in chapter D, only certain combinationsof voltages, switching capacity and number of contactsare available of the shelf. Other combinations areavailable on request.By means of the toggle on the front of the device

O2 , the contacts can be forced to their energisedposition.

The position of each contact is visualisedindividually by means of a mechanical indicator O3 .The function of the relay or the circuit that isoperated by the relay can be indicated behind thecircuit indicator O4 i.e. hall, living, garage, … .The Pozidriv terminals O5 are clearly marked and areall captive.

General remarks- Using relays at low voltage, and especially when

several devices can be operated simultaneously,ultimate care should be taken to the correctdimensioning of the step-down transformer.

- When several adjacent relays are continuouslyenergised, the heat dissipation could irreversiblydamage those devices. To avoid this, a spacermodule should be installed between every secondand third device (type designation PLS SP).

Contax R

Relays

FunctionRelays are electromechanically controlled switchesused to control single or multi-phase low to mediumpower loads while the control itself can be (very)low power.Also, relays are often used as interfaces to obtaingalvanic separation.Typical applications are given in figure 1 and 2.

OperationAs long as the control circuit (coil) is energised, theNO-contacts of the relay are closed and the NC-contacts are opened. From the moment the controlcircuit is de-energised again, the contacts return totheir rest position. NO-contacts are opened andNC-contacts are closed.

fig.1 Start-stop of lamp-load with relay

fig.2 Relay as interface between field and PLC

photo 1

O1

O2

O4

O5O5O4O3

T4

T4.11

Relays

Lamp type

Incandescent

Fluorescent uncompensated

Fluorescent 2-lamp circuit

Fluorescent paralel compensated

Metal Halogen uncompensated(l.e. HQI)

High pressure sodium vapor lamps - Uncompensated (I.e. NAV)

Low pressure sodium vapor lamps - Uncompensated (I.e. Sox)

High pressure mercury vapor uncompensated (I.e. HQL)

Lamps with electronic power supply (EVG’s)

In (A)0.0650.1080.1740.2600.3300.4300.6500.8701.3002.170

0.3700.3700.3650.4300.4300.6700.670

0.3700.3700.3650.4300.4300.6700.670

0.1900.1900.1800.2200.2200.3400.340

0.5001.0001.8003.0003.5009.500

0.7701.0001.8003.0004.40010.300

0.3500.6000.5900.9400.9500.900

0.6000.8001.1502.1503.2505.4007.500

---

Technical performancesTables 1 and 2 show in detail the maximum numberof lamps and transformers respectively that eachcontact of a relay can switch at 230V-50Hz for thedifferent types of loads.

Perm. number of lamps

16A1539257383023151174

141414121288

39393933332121

1010119966

105211-

6521--

1589555

86421--

1216037

Perm. number of lamps

P (W)1525406075100150200300500

18203036405865

2 x 182 x 202 x 302 x 362 x 402 x 582 x 65

18203036405865

35701502504001000

50701502504001000

18375691135185

50801252504007001000

183658

Lamp data

Table 1

Redline

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Transformer type

Transformers for low voltage halogen lamps

Permitted number of transformers

16A3915107532

Text for specifiers- 1 and 2 pole relays have a width of 1 module,

3 and 4 pole devices have a width of 2 modules.- Permanent use of the control circuit is allowed

although in this case a spacer-module must beadded every second relay.

- The maximum switching frequency is equal to1000/h at nominal load.

- The position of each contact is individuallyvisualised.

- Manual closing of the contacts is possible at alltime.

- The captive Pozidriv terminals guarantee a solid,reliable connection.

- The devices are DIN-rail mountable.- The relay is equipped with a transparent circuit

indicator.

Transformer data

P (W)205075100150200300

Table 2

T4

T4.13

Impulse sw

itches

Pulsar S

Impulse switches

FunctionImpulse switches are electromechanical orelectronically controlled switches used to controlsingle or multi-phase medium-power loads while thecontrol itself can be (very) low power. The deviceswitches between 2 stable positions, each time a(brief) impulse energises its control circuit. Typicalapplications are given in figure 1 to 4.

Electromechanical impulseswitchesIn these devices, the two stable positions areestablished by means of a mechanical cam-mechanism that operates the contacts. The movingpart of the coil pushes the cam-mechanism in to itsnext state each time the coil is energised.Photo 1 shows the front view of theelectromechanical impulse switches.The main characteristics of the device are printed inthe upper part of the device O1 . These are:- Switching capacity- Coil voltage- Wiring diagram- 6-digit ordering codeRelated to the switching capacity, two families exist:16A and 25A.In both families, the following coil voltages arestandard and available of the shelf: 12, 24, 48, 230and 240V, and 12 and 24VDC.Manual operation is possible by means of the toggle

O2 on the front of the device.The position of each contact is shown at all time bymeans of a mechanical indicator O3 .The circuit that is operated by this impulse switchcan be indicated behind the circuit indicator O4 i.e.hall, living, garage, … .The Pozidriv terminals O5 are clearly marked and areall captive.

fig.1

fig.4

photo 1

fig.2

fig.3

O1 O1

O2O3

O5

O4

Redline

Remote indication of the contact position can beaccomplished by means of the add-on auxiliarycontact module PLS 0411 (photo 2). The auxiliarycontact can only be mounted on the left side of thedevice.

Independent of coil voltage or number of contacts,always the same add-on module for centralisedcommand PLS C can be used (photo 3). Thecentralised command module can only be mountedon the right side of the device.

Additionally, the PLS M multi-level centralisedcommand module allows an almost unlimited numberof hierarchical levels for grouped on off switching.Figure 8 shows the wiring for a multilevel centralisedcommand application.

Both an auxiliary contact module and a centralcommand module can be mounted on the samedevice at the same time.

Electromechanical step-by-stepimpulse switchesIf two different circuits need to be operated withonly one pushbutton, possibly from different places,step-by-step, multi-circuit impulse switches are thesolution. The subsequent contact positions areshown in table 1.

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Example: one hall with 3 rows of lights (see fig.9);in step 1, no lights are activated, in step 2 only themiddle row is activated, in step 3 all rows are activatedand in step 4 both outermost rows are activated. Assuming all lights have the same characteristics,in this way the light-intensity can be regulated in4 steps: Off, 33%, 66% and 100%.

photo 2 photo 3

fig.8

Step

1234

Contact 3-4

OpenOpen

ClosedClosed

fig.9

Contact 1-2

OpenClosedClosedOpen

Table 1

T4

T4.15

Impulse sw

itches

Electronic impulse switchesHere the two stable positions are generated by meansof a bi-stable electronic circuit that operates a build-inminiature relay. In photo 4 one can see the front view ofthis device with the cover closed as well as open.

The main characteristics are printed on the upperpart of the device O1 .As opposed to the electromechanical impulseswitches, manual operation is not possible.The position of each contact is visualised by meansof a LED O3 .The circuit that is operated by this impulse switchcan be indicated behind the circuit indicator O4 i.e.hall, living, garage, … .

The Pozidriv terminals O5 are clearly marked and areall captive.The add-on-centralised command module cannotbe applied to the electronic impulse switches.Instead, special electronic impulse switches withthis function already built-in, are available. Thisreduces cabling time.

General remarks- When using the centralised command function,

make sure that the same polarity is used for thelocal command as for the central command.Figure 11 shows correct and erroneousconnection of the centralised command module.

- Using impulse switches at low voltage, andespecially when several impulse switches can beoperated simultaneously (i.e. centralisedcommand), ultimate care should be taken to thecorrect dimensioning of the step-downtransformer (see also table 4 on page T4.17).

- When the control voltage is continuously applied,a spacer module PLS SP should be mountedbetween every second and third impulse switch.

Technical performancesTables 2 and 3 (next page) show in detail themaximum number of lamps or transformers thateach contact of an impulse switch can switch at230V-50Hz for the different families (16, 25 and 32A)and for different loads.

fig.11b

CentralOn

CentralOff

Local Local

CentralOn

CentralOff

Central Local Local Local Local

Central

fig.11a

photo 4

O1

O4 O3

O5

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Lamp type

Incandescent

Fluorescent uncompensated

Fluorescent 2-lamp circuit

Fluorescent paralel compensated

Metal Halogen uncompensated (I.e. HQI)

High pressure sodium vapor lamps - Uncompensated (I.e. NAV)

Low pressure sodium vapor lamps - Uncompensated (I.e. Sox)

High pressure mercury vapor uncompensated (I.e. HQL)

Lamps with electronic power supply (EVG’s)

In (A)0.0650.1080.1740.2600.3300.4300.6500.8701.3002.170

0.3700.3700.3650.4300.4300.6700.670

0.3700.3700.3650.4300.4300.6700.670

0.1900.1900.1800.2200.2200.3400.340

0.5001.0001.8003.0003.5009.500

0.7701.0001.8003.0004.40010.300

0.3500.6000.5900.9400.9500.900

0.6000.8001.1502.1503.2505.4007.500

---

16 A1539257383023151174

141414121288

39393933332121

1010119966

105211-

6521--

1589555

86421--

1216037

P (W)1525406075100150200300500

18203036405865

2x182x202x302x362x402x582x65

18203036405865

35701502504001000

50701502504001000

18375691135185

50801252504007001000

183658

10 A6640251613106532

1111119966

1111119966

-------

------

------

------

-------

361811

25A240144906048362418127

22222219191212

61616252523333

21212218181212

168422-

108421-

231314889

13107321-

1909558

Lamp data Permitted number of lamps

Switching of lamp load (table 2)

T4

T4.17

Impulse sw

itches

Transformer type

Transformers for low voltage halogen lamps

PLS xx 10 13 (+ PLS C + PLS M)PLS xx 10 25 (+ PLS C + PLS M)PLS xx 11 13 (+ PLS C + PLS M)PLS xx 11 25 (+ PLS C + PLS M)PLS xx 20 13 (+ PLS C + PLS M)PLS xx 20 25 (+ PLS C + PLS M)PLS xx 22 13 (+ PLS C + PLS M)PLS xx 22 25 (+ PLS C + PLS M)PLS xx 40 13 (+ PLS C + PLS M)PLS xx 40 25 (+ PLS C + PLS M)PLS S xx 20 13PLS S xx 20 25PLS C xx xx 14PLS C xx xx 26

TR B 1515VA12V

303030101030260

TR B 8 S8VA12V

101010000010130

TR S 1515VA24V030303010103037

TR S 2625VA24V

050505020205061

TR S 4140VA24V

080808030308098

TR S 6463VA24V

01201201205050120

154

Text for specifiers- Depending on the application, electro-mechanic

or electronic impulse can be used.- 1 and 2 pole impulse switches have a width of

1 module, 3 and 4 pole devices have a width of 2modules.

- The position of each contact is individuallyshown.

- Manual operation is possible at all time by meansof a toggle.

- The captive Pozidriv terminals have a capacity of2x(0.5 to 2.5)mm2 for the control circuit and1 to 10mm2 for the load circuit.

- The terminals do guarantee a solid and reliableconnection.

- Permanent use of the control circuit is allowed forthe 1- and 2-pole devices, although in this case aspacer-module must be added every secondimpulse switch.

- The devices are DIN-rail mountable.- The protection degree of the impulse switch is

IP20.- The impulse switch is equipped with a transparent

circuit indicator.- Add-on modules for distant reporting (auxiliary

contact) and centralised command are availableas well as all-in-one central command impulseswitches and multi-circuit impulse switches.

Switching of transformers (table 3)

P (W)205075100150200300

10 A20854221

25A60241612864

Permitted number of transformer

TR B 55VA12V

10101000001080

TR B 1010VA12V

202020000020170

TR S 1515VA12V

303030101030260

TR S 2525VA12V

505050202050430

TR S 4040VA12V

808080303080690

TR S 6363VA12V1201201205050120

1090

Number of impulse switches as function of voltage step-down transformer (table 4)

Transformer data

16 A3915107532

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Pulsar TS

Staircase switches

Function and rangeA staircase light switch is a special purpose delay-off timer.In addition to a delay-off timer, the staircase switchwill allow a certain amount of (limited) current topass through the coil without energisation. Thiscurrent usually comes from illuminated push-buttons,used to help people in a dark staircase find thesepush-buttons.

The range of Pulsar TS staircase time switchesincludes:- An electromechanical controlled device, with a

very competitive cost and with an acceptableaccuracy (see fig.1 for timing details)

- Electronic controlled devices for applicationswhere a higher accuracy is needed (sametiming diagram as for the electromechanicaldevice, see fig.1)

- A device with a built-in ‘end of light on’ pre-warning by means of briefly switching off and onagain the load at the end of the cycle (flasherfunction; can be used with all different kinds ofloads) (see fig.2)

fig.1Timing diagram for standard electro-mechanical and electronic staircase switch

- A device with built-in ‘end of light on’ pre-warningby means of dimming the load at the end of thecycle (dim-function; can be used only withresistive and incandescent loads) (see fig.3)

- A dim add-on module which can be used in combi-nation with the standard electromechanical as wellas with the standard electronic staircase switch.

Features and benefitsFigures 4 and 5 show the front and what’s behind thecover for the PLT S M OA , PLT S E OB and PLT S F

OC staircase time switches and for the PLT S D ODdim add-on module.Besides the delay-time dial O1 , all staircaseswitches have a permanent on and off overrideswitch O2 and for the electronic devices an outputstatus indication LED O3 .

The function of the staircase time switch or thecircuit that it operates can be indicated behindthe circuit indicator O4 i.e. hall, staircase west,staircase east. The clearly marked Pozidriv safetyterminals O5 are all captive.

fig.2Timing diagram for electronic staircaseswitch with flasher pre-warning

fig.3Timing diagram for electronic staircaseswitch with dim-function

fig.4

fig.5

O1

O5

O3

OA OB OC OD

O1

O4

O2

O2

T4

T4.19

Staircase sw

ithces

Also in this case, the function of the staircase timeswitch or the circuit that it operates can beindicated behind the circuit indicator O2 .All electronic staircase switches can be used in a 3-or 4-wire configuration (see below) without anyspecial wiring or hardware-setting. For theelectromechanical version however, the selectionbetween a 3- or 4-wire wiring is accomplished bymeans of a switch on the side of the device as isshown in figure 7.

3- and 4-wire wiringDepending on the wiring execution in the field i.e.the way in which the wire-conducts are physicallyinterconnecting the push-buttons, lamps andstaircase switch, the cabling can be carried out intwo different ways. If there is only one tube or cable daisy-chaining allpush-buttons and all lamps, then, as is shown infigure 8, a 3-wire wiring would be the mosteconomic way of doing. For simplicity reasons thePE-conductor is not shown here.However, in some cases one wiring-tube or cable isinterconnecting all lamps with the staircase lightswitch and another tube or cable is interconnectingall push-buttons as shown in figure 9. Obviously in

this case we cannot use one common wire for thepush-buttons and for the lamps as in the abovewiring diagram. For this setup, 4-wire wiring asshown in figure 9 is required. Also in this case thePE-conductor is not shown.

Wiring the dim add-on moduleThe dim add-on module is a universal usable add-on that can be used in combination with all types ofstaircase switches.

Operation (see fig.10 and fig.11)When the staircase switch is energised through oneof the push-buttons, its output contact energisesthe load and the dim add-on module. Therefore, theoutput contact of the dim-module is in its ‘on’ state.As soon as the time of the staircase switch haselapsed, its output contact opens. As the dim-module acts as a delay ‘off’ timer, its output contactremains closed. The level of the voltage suppliedto the coil of the dim-module through its owncontact however is not high enough to keep the coilenergised. Indeed, because of the internal diode inseries with the output contact, half of the supplyvoltage is cut away. This results in an RMS value ofthe voltage supplied to the coil of the dim-moduleand to the load being only half of the nominalsupply voltage.

fig.8

fig.7

fig.9

fig.10

3-4 wireselection switch

dim add-on module

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PLT S F

150 mA

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Figure 11 shows in detail the different voltage-waveforms as function of time:- V1 = supply voltage waveform passing the contact

of the staircase switch,- V2 = supply voltage waveform passing the contact

of the dim-add-on module,- V3 = resulting voltage waveform applied to the

load.

Using illuminated push-buttonsAll Pulsar TS staircase switches can be operatedby means of illuminated push-buttons where thelamp is put directly in parallel to the push-button(see fig.12).

In this case the lamp extinguishes when the push-button is pushed and is constantly lit-up otherwise.While lit-up, the total current drawn by these lampsflows entirely through the coil of the staircaseswitch. Therefore, the number of illuminated push-buttons (lamps) that can operate one staircaseswitch is limited in order not to automaticallyenergise the coil.Table 1 below shows the maximum current allowedto flow through each of the different Pulsar TSstaircase switches without energising them.

When applying an additional wire as shown in figure13, the current drawn by the bulbs of the illuminatedpush-buttons is sunk through this wire instead ofthrough the coil of the staircase switch.In this case an unlimited number of illuminatedpush-buttons can be put in parallel to operate thestaircase switch.

Applicable standardsAll Pulsar TS staircase time switches are designedaccording to the following standards (latest versionunless indicated otherwise):- 669-2-3- EN 50021-1- EN 50082-2- VDE 0632

Text for specifiers- Devices based on electronic as well as on

electromechanical technology are in the range.- The NO output contact of the staircase switches is

voltage-free for all devices in the range.- All devices have a manual ‘on/off’ override switch.- 4- or 3-wire cabling is possible with all devices.- The devices are all DIN-rail mountable.- An electronic add-on dim-module can be used in

combination with both the electromechanical aswell as with the electronic staircase switches.

- All staircase switches can be retriggered at alltime.

- The range includes staircase switches with earlyturn-off prewarning by means of brief interruptionsof the load circuit at the end of the cycle (flash-function) or by means of dimming the load at theend of the cycle (dim-function),

- The use of illuminated pushbuttons is possible atall time. To this respect, the total current flowingthrough the coil without energising it is at least50mA for the electromechanical and at least150mA for the electronic staircase switches.

- All devices have a transparent circuit indicator.- The captive Pozidriv terminals have a capacity of

2x(0.5 to 2.5)mm2 for the control circuit and 1 to10mm2 for the load circuit.

- The terminals guarantee a solid, reliableconnection.

fig.12

fig.11fig.13

PLT S E

150 mA

PLT S D

0 mA

PLT S M

50 mA

Table 1

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Timing relays

Pulsar T

Timing relays

FunctionUse of incoming impulses to give predictableoutput-impulses.

Operating functions andapplicationsFigures 1 to 6 show the different timing functionstogether with the applications.

fig.1 Delay On (PLT ON)Avoid drive-way light-up in case the movementdetector "accidently" detects someone passing by.

fig.2 Delay Off (PLT OF)The use of a delay-off timer avoids the pumpfrom switching on and off all the timeA hysteresis is built in.

fig.3 Delay On and Off (PLT OO)Ventilation in toilets etc.

fig.4 Positive edge single shot (PLT PS)Opening of automatic door. Energising the motorduring a certain time "t" in order to open the doorwhen movement is detected.

fig.5 Negative edge single shot (PLT NS)Energising the motor during time "t" in order toclose the door again when no movement isdetected.

fig.6 Symmetrical flasher (PLT AS) Flash-light.

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ProgrammingExcept for the multifunction timing relay, all deviceshave two dials to set the delay (see photo 1). Theupper one O1 is the preset of a time i.e. from 0.1 secto 4 h. The lower one O2 is the multiplier of this time.The product of both gives the actual time delay.

Examples- Requested delay time is 7 minutes: put upper

switch on 1 min and lower switch on 7.- Requested delay time is 40 minutes: put upper

switch on 5 min and lower switch on 8.- Requested delay time is 3 hours: put upper switch

on 1h and lower switch on 3.

In this way, the time range on these timing relays ispresetable from 0.1 sec to 40h.

The additional dial O3 on the multifunction timingrelay is used to select the function.

Wiring diagram

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fig.8

O3

O1

O2

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Electromechanical tim

ers

Classic

Electromechanical timers

IntroductionThe Classic family of electromechanical timers isused to switch loads on and off, according to a pre-programmed switch-plan, as a function of time. This range of electromechanical timers covers 1-and 2-channel devices, net- or quartz-synchronisedwith a daily or/and weekly program.

OperationA motor drives a dial with switches. When put intheir ‘ON’ state, these switches mechanicallyoperate a contact. In this way, the 16A output-contact is switched over a period of time, accordingto the setting of the switches on the dial.Besides the timed switching, the output can bemanually forced to the ON- or OFF-state at any time.

Features and benefitsPhotos 1 to 3 show the front of the CLS x 1, CLS x3, CLS x 4 and CLS x 6 Classic timers.The dials clearly indicate daily or weekly operation

O1 . The daily version has the shortest switching timeof 30 minutes. The shortest switching time of theweekly version is 3 hours.The different modes of operation are clearly markedwith self-explaining symbols next to the switch. The function of the timer or the circuit that itoperates can be indicated behind the circuitindicator O3 i.e. heating, lighting, etc. By means of

the plastic cover, the timer can be sealed making itimpossible to alter the program or the actual time

O6 .The clearly marked Pozidriv safety terminals O7 areall captive.

photo 1

Type-name definitionThe type-name of a Classic timer is a uniquedesignation that includes the main features of thetimer. It is composed of 5 parts:- CLS: abbreviation for Classic- Q or S: quartz- or net-synchronised- 11, 31, 41, 62 of which the first figure represents

the width of the device in number of modules,while the second figure represents the number ofchannels

- D, W, DD or DW indicating daily, weekly orcombined daily-daily or daily-weekly operation

- M indicating metal dial-switch execution.

photo 2

O5O6

O6

O1

O4

O7

O1 O2

O4

O7

O5O6 O

photo 3

O6

O1O1

O5

O4O2

O7

O

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TerminologyProgram per channelExamples- 1x24x2 is a daily timer (1x24); minimum duration

between 2 subsequent switchings (=shortestswitching time) is 30 minutes (x2).

- 7x24:3 is a weekly timer (7x24); minimum durationbetween 2 subsequent switchings is 3 hours (:3).

- 1x24x4 & 7x24:12 is timer with a combined dailyand weekly program (1x24 and 7x24); minimumduration between 2 subsequent switchings is 15minutes for the daily dial (x4) and 2 hours for theweekly dial (:12).

Manual overrideDuring normal operation, the output contact of thetimer is operated according to the settings of thedial-switches. However, at all time it is possible tomanually override this operation for each channelindividually.The different overrides are as follows (see also photo 5):- 1: always forces the output of that channel to the

on-status,- 0: always forces the output of that channel to the

off-status.

Running reserveThe time during which a timer can continue to runwithout being externally supplied with power is calledthe running reserve. The 3, 4 and 6 module deviceshave a running reserve of 150 hours, while due tothe limited space available, this is 50 hours for the1 module electromechanical timer.

ProgrammingAs is illustrated in photo 6, the programming of theClassic timers is very easy: moving the dial-switchesoutwards O1 , switches the output-contact to the on-position when this switch passes the contact O2 ,moving them inwards switches the output contactto the off-position.

In case dials with plastic switches are to be used- This range covers 1 and 2 channel devices, with

daily or/and weekly program, with or withoutrunning reserve.

- The voltage-free change-over output contact iscapable of switching a resistive load of 16A/250Vand an inductive load of 4A/250V.

- The shortest switch-on time for the daily versionis 30 minutes and for the weekly version is3 hours.

- The running reserve is 150 hours.- The program is set by means of unlosable plastic

switches on a dial.- Manual override is possible at all time by means of

a 0-clock-1-switch on the front of the device (forthe 1 module device at least a clock-1 switchshould be available).

- The electromechanical timers can be sealed inorder to avoid accidental or deliberate alteration oftime, date and program.

- All terminals have the safety-feature and havecaptive Pozidriv screws.

- The devices are DIN-rail mountable.- The electromechanical timers all have a circuit

indicator window, in order to easily identify theirfunction (i.e. heating, lighting, etc.).

photo 5

O2

O1

photo 4

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Electromechanical tim

ers

Galax

Digital timers

IntroductionThe Galax family of digital timers is used to switchloads on and off, according to a pre-programmedswitch-plan, as a function of time.This range of microprocessor based timers goesfrom a simple 1-channel, quartz synchronised, dailyprogrammable device with 12 programming steps,mainly used for domestic purposes, up to a 4-channel DCF-77 synchronised yearly timer with 400programming steps for high-feature-demandingindustry.As will be shown below, the very easy andstraightforward programming is the same for thewhole range. For the high-end devices (yearlyprogrammable), a Windows 95 (and up) compatiblesoftware exists as a further extension for easyprogramming, downloading to and uploading fromthe timer.

OperationThe 16A output relay contacts are switchedaccording to the user pre-programmed sequence.The actual status of an output is clearly visualisedat all time on the LCD (see below).Besides the automatic switching, the output(s) canbe manually forced to the ON- or OFF-state at anytime.

Features and benefitsPhotos 1 to 3 are showing the front of the 1/1 (GLXQ 1), 2/2 (GLX Q 2) and 6/4 (GLX Q 4)module/channel Galax timers respectively.

Besides the self-explaining operating andprogramming keys O1 , all devices have a LiquidCrystal Display (LCD) O2 , displaying in a clear andstraightforward way all parameters such as:- Actual time (hh:mm) O3- Date where applicable O4- Day of the week where applicable (1…7;

1=monday) O5- Channel 1, 2 and 4 operation O6 (for detailed

explanation see the chapter concerning theprogramming below)

- Status on or off- Operated by program- Manual operation- Fix on or off

As always, the function of the timer or the circuitthat it operates can be indicated behind the circuitindicator O7 i.e. hall, living, garage, … .By means of the plastic cover, the timer can besealed so the program and the actual time and datecannot be altered O8 .The clearly marked Pozidriv safety terminals O9 areall captive.Table 1 summarises all features for the differentdevices in the range.

photo 1

photo 2

photo 3

O2

O1

O9

O7O8 O

O2

O8 O

O3

O9

O1O4

O7

O1

O5O3O6

O7O8 O

O9

O1

O2

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Type-name definitionThe type-name of a Galax timer is a uniquedesignation that includes the main features of thetimer. It is composed of 5 parts:- GLX: abbreviation for Galax- Q: quartz synchronised- 11, 21, 22, 62 or 64 of which the first figure

represents the width of the device in number ofmodules, while the second figure represents thenumber of channels

- D, W or Y, indicating daily, weekly or yearlyoperation

- A figure representing the number of programmingsteps, going from 12 up to 400.

TerminologyProgram per channelExamples- 1x24x60 is a daily timer (1x24); minimum duration

between 2 subsequent switchings (=shortestswitching time) is 1 minute (x60).

- 7x24x60 is a weekly timer (7x24); minimumduration between 2 subsequent switchings is1 minute (x60).

- 365x24x3600 is a yearly timer (365x24); minimumduration between 2 subsequent switchings is1 second (x3600).

Number of programming stepsThis figure represents the total number of eventsthat can be programmed in the device. An event isunderstood to be a change in the output-state.Example:If for one particular day, output 1 of a GLX Q 22 W40 has to switch to the on-state at 8:45, output 2 at10:25 and both have to be de-energised again at11:45, three programming steps need to be used.After this sequence has been programmed, thetimer has 37 free programming steps left.

Block-programmingBlock-programming allows to repeat the sameevents on different days, without sacrificingadditional programming steps.

Coming back to the above example, if all eventshave to take place all days of the week except i.e.on Tuesday and Sunday, a normal timer would need5x3=15 programming steps. By using the block-programming feature of the Galax timers, (=settingthe appropriate days on or off for each individualevent), indeed those events will be repeated on allappropriate days while the free number ofprogramming steps remains the same as if thoseevents were programmed only for one day. Thisagain results in 37 free programming steps for theGalax timer compared to 25 for a timer without theblock-programming feature.

Manual overrideDuring normal operation, the output relay(s) of thetimer is (are) operated according to the pre-programmed sequence. However, at all time it ispossible to manually override this operation foreach channel individually.The different overrides are as follows:- ON: forces the output-relay of that channel to its

on-state until the next programmed off instructionfor that same channel comes along. At this time,the timer automatically goes to normal operationagain.

- FIX ON: always forces the output of that channelto the on-state, independently of any subsequentprogrammed off-instruction.

- FIX OFF: always forces the output of that channelto the off-state.

Summer-winter time changeThe summer-winter time change can be done in 3different ways:- Automatic (AU): The summer-winter time switch-

over takes place on predefined dates according tothe summer time regulation of the European Union.These dates, up to the year 2096, are permanentlystored in the timer and cannot be altered.

- Calculated (cHA): The user can select the week ofthe year and the day of the week on which thesummer-winter time switch-over has to take place(for this and all forthcoming years).

- No switchover (no).

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Program per channelNumber of modules Number of channels Number of programming steps Block programmingManual override per channelSummer-Winter time changeCycle / Impulse functionRandom functionClear functionReset functionCalendar / Holiday functionDCF-77PC-programmableRunning reserve

GLX Q21 W 307X24X60

2130yes yes yes no no yes yes nono no

3 yr

GLX Q11 W 427X24X60

1142yes yes yes no yesno yes

no/yes no no

150h

GLX Q22 W 407X24X60

2240yesyes yes yesnoyes yes no no no

3 yr

GLX Q64 W 400

7X24X360064

400yes yes yes yes no yes yes yesno yes6 yr

GLX Q64 Y 400

365X24X360064

400yesyesyesyesnoyesyesyesyesyes6 yr

GLX Q21 D 12

1X24X602112noyesyesnonoyesyesnonono

3 yr

Daily Weekly

Galax specifications (table 1)

GLX Q21 W 207X24X60

2120yes yes yes nono yes yes no no no

3 yr

GLX Q22 W 307X24X60

2230yes yesyesyes no yesyesno nono

3 yr

GLX Q62 W 400

7X24X360062

400yes yes yes yes no yes yes yesno yes 6 yr

GLX Q62 Y 400

365X24X360062

400yesyesyesyesnoyesyesyesyesyes6 yr

Yearly

T4.27

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T4

Cycle/Impulse functionGenerating a impulse-train with short pulses and ashort pauses with a standard timer would consumea huge part of the timer’s free programming space.For example: changing the output of a timer onceper second during 10 minutes, would require 600programming steps. On top of that, the shortestswitching time must not be longer than 1 second. For this kind of application, except for the mostsimple ones, all timers have a build in Cycle /Impulse function.With this function, the duration of the impulse(output relay switched to the on-position) and thetotal period or cycle (duration of the impulse andpause together) can be defined. This sequence isrepeated as long as the channel for which this hasbeen programmed is active (see fig.4).

In this way, instead of 600 programming steps forthe above application, only 2 are required: one thatactivates the channel with this function, and onethat deactivates it.

RemarkThe impulse function can be used on its own aswell, thus without using it in a cycle. In this caseonly one programming step is used for 2 events:switching the respective output to the on-state andswitching it back to the off-state after the durationof the impulse has elapsed.

Random functionWhen activated, this function switches the output ina random way. Often this feature is used to simulatesomeone being present in a house, while actually noone is (i.e. during holidays).

Clear functionThis function allows the programmer to delete oneprogram step without having to reprogram allsubsequent steps. Subsequently pushing thisbutton removes all programmed switching eventsfrom the memory.

Reset functionThe actual time can be reset to 00:00 by simplypushing the reset button on the front of every timer.Resetting a Galax timer does not delete theprogrammed switching times.

Calendar/Holiday functionThe yearly programmable timers have the possibilityto repeat a switching program during a certainperiod.i.e. programmed heating and lighting of a workshop: - Lighting from 7:30 till 15:45, all year around except

for the summer- (July 15 till August 15) andChristmas-holidays (i.e. December 25 till January3), for the official holidays and also except for theweekends;

- Heating from 7:05 till 15:50, only during theheating-season (i.e. from October 1 till April 15),and obviously not during the Christmas-holidays(i.e. December 25 till January 3), the weekendsand the official holidays.

DCF-77When the accuracy of a timer is not high enough,the Frankfurter atom-clock can be used tosynchronise the timer in order to virtually reduce thetime-error to 0.This atom-clock transmits the so-called DCF-77radio signal (= message that includes all time anddate related info). By connecting the appropriate antenna to the timer(see fig.5), the signal is received and automaticallythe timer is synchronised at all time.

Running reserveThe time during which a timer can continue to runwithout being externally supplied with power is calledthe running reserve. Except for the GLX Q 11 W 42, allGalax timers have a built-in lithium battery guaranteeinga running reserve of 3 or 6 years from factory.

CHANNEL x ACTIVE

OUTPUT SIGNAL

PULSE/CYCLE �DEFINITION

IMPULSE

CYCLE

fig.1

fig.2

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ProgrammingProgramming ToolsBesides programming the GLX Q 6 digital timersmanually, it is also possible use the GalaxProgramming Tool. This tool consists of - a Windows-95 (and up) compatible software with

very easy to use and straightforward GUI- a handheld programming device- an RS232 serial cable to interconnect the

programming device with the PC.A normal programming sequence is as follows:- The user installs the timer switch-plan on the PC;- In a next step, this program is downloaded in the

programming device through the serial cable. Theprogramming device can store up to 4 differentprograms;

- Next, the programming device can bedisconnected from the PC;

- Finally, one of the programs stored in the programmingdevice is downloaded on to the GLX Q 6 timer.

Photo 4 shows a complete set-up of theprogramming environment.

This very practical solution offers several advantages:- Only one programming toolkit is required to

program all GLX Q 6 devices.- An unlimited number of timer-switch-plans can be

stored on the PC.- Small changes from one application to another

don’t require introducing manually the completeswitch-plan over and over again. Instead, justopen an existing switch-plan stored on the PC,make the modifications save it under another name,and download it.

- Because the IR-communication between the timerand the programming device is bi-directional, alsouploading of a switch-plan that resides in a timeris possible, as is viewing this switch-plan on thePC again.

- The programming can be done in a quite officeenvironment compared to the rather noisy "field".

- No long programming times on site.- Less errors, less time spent, less cost.- By removing the HMI from the timer (see also photo 4),

the timer-base can already be installed on site,while the programming and testing is still going on.

Text for specifiers- Digital timers from the same family all have the

same programming philosophy.- Digital timers are all microprocessor based and

clocked by a quartz crystal to assure a solid time-base.

- The maximum allowable over-time-error of thedigital timers is maximum 2.5sec/day at 20°C.

- The family of digital timers incorporates devicesthat can be synchronised by the DCF-77 signal. Inthis case the error equals to 0 sec/day.

- The DCF-77-compatible timers have a built inamplifier. No intermediate components betweenthe timer and the antenna are required.

- 1, 2 and 4 channel digital timers available in thesame family. The output of each channel is avoltage free change-over relay-contact.

- 1-module devices have a running reserve of atleast 150h while the 2-and 6-module devices havea running reserve of at least 3 and 6 yearsrespectively.

- The shortest switching time is maximum 1 minute(1 second for timers with impulse function). Theprogramming accuracy is 1 minute or better.

- Depending on the type, devices with 12, 20, 30,40, 42 and 400 programming steps are available.

- The range of digital timers must include deviceswith the block-programming feature.

- Manual override to ON, FIX ON and FIX OFF ispossible at all time and per individual channel.

- The digital timer can switch from summer to wintertime • in an automatic way, according to the European

Unions’ statutory summer time regulation (pre-programmed and not alterable), or

• in a calculated way, always in the same weekand on the same day of that week.

- All digital timers can be sealed in order to avoidaccidental or deliberate alteration of time, dateand program.

- A clear high-contrast LCD provides the user withall necessary information such as actual time, dayof the week and date if applicable, output statusper channel, summer/winter, manual override, etc.

- The digital timers all have a circuit indicatorwindow, in order to easily identify their function.

- The yearly timers can be programmed by means ofWindows 95 (or up) –compatible software. Down-and uploading is accomplished by the intermediateuse of a handheld IR programming tool.

- All terminals have the safety feature and havecaptive Pozidriv screws.

photo 4

IRTRANSMISSION

HANDHELDPROGRAMMINGDEVICE

SERIAL RS232 CABLE

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Galax LSS

Light sensitive switches

Function and rangeA light sensitive or twilight switch is an electronicswitch that switches its output-contact basedon the intensity of the ambient light, measuredby a photocell.For DIN-rail mounting, a 1-channel, 2-channel and1-channel with integrated digital timer are available.They all have a separate photocell deliveredwith them.For wall mounting, an all-in-one device, integratingthe photocell, the amplifier and the switch (relay)itself, is offered.

Operation As long as the light intensity is above the switch-onthreshold value, the output relay remains de-energised and the output contact is open (see O1 in fig.1).Once the light intensity drops below the switch-onthreshold value O4 and stays below this thresholdvalue during time td, after td, the output relay isenergised, and the output contact switches over (see O2 in fig.1).When the intensity of the light rises above the switch-off threshold again, O5 again after a delay td theoutput relay is again de-energised (see O3 in fig.1).

In order to avoid unstable behaviour, a hysteresisexists between the switch-on and switch-offthreshold. Also a user pre-settable time delay td

(0..100sec), both at switch-on as well as at switch-off, further reduces the chance of unstable behaviour.

Applications User adjustable hysteresisIn case the built-in hysteresis does not respond to theusers’ requirements, by using a 2 channel lightsensitive switch, the on- and off-threshold can be setcompletely independent of each other (see fig.2).

load

time

hysteresis

Luxfig.1

OA Light intensity > 450 LuxBoth channel 1 and 2 are in their de-energisedposition; K1 doesn’t pull and the lamps don’t light-up.

OB 450 Lux > Light intensity > 150 LuxChannel 1 switches over while channel 2 staysde-energised. The lamps still don’t lit-up.

OC 150 Lux > Light intensityNow also channel 2 switches over, energising K1,lighting up the lamps.

OD 150 Lux < Light intensity < 450 LuxChannel 2 is de-energised again, but K1 staysenergised through channel 1 of the lightsensitive switch.

OE Light intensity > 450 LuxChannel 1 is de-energised again, K1 is no longerenergised and the lamps are no longer lit-up.

Light sensitive switch in combination with astaircase switchFigure 3 shows the correct way of using a lightsensitive switch together with a staircase switch. This application is typically useful when throughoutthe day normal daylight enters the staircase andartificial light is not required.Preferably the output contact of the light sensitiveswitch is in series with the coil and not with the loadof the staircase switch for following reasons:

- manual override at the level of the staircase is stillpossible,

- in case the operating push-buttons have indicatinglamps, one can easily see if the staircase lightscan be operated or not.

fig.3

fig.2

450

150

Channel 1450 LUX

Channel 2150 LUX

Redline

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Multilevel/multichannel light sensitive operationwith 1 photocellBased on the external light intensity, the lightintensity of a (large) room can be adjusted in orderto keep the overall light intensity in the roomunchanged (see fig.4 and table 1).

RemarkWhen using only 1 photocell with several (max 10)2-channel light sensitive switches, only on 1 lightsensitive switch terminal 10 needs to be connectedto terminal 12 while on all others, terminal 10 is tobe left open (see also fig.4 and table 1).

Features and benefitsDIN-rail mountable devicesPhoto 1 shows the front views of the 1- and 2-channel and 1-channel with integrateddigital timer together with the photocell.An LED O1 indicates the status of each outputcontact (LED on: output relay energised, LED off:output relay de-energised).By means of a potentiometer O2 , the user canselect in a continuous way the light intensity that hewants the twilight switch to switch. This thresholdcan be set between 2 and 500 lux. The hysteresisbetween the switch-on and switch-off threshold isfixed at 30% of the switch-on level. This means thatthe switch-off light intensity is at 130% of theswitch-on light intensity.In order to reduce instability and also to avoidnuisance switching, the user can also preset an on-and off-no-response delay, also by means of apotentiometer O3 .As always, the function of the twilight switch or thecircuit that is operated by it can be indicated

behind the circuit indicator O4 i.e. garden lights,blinds, etc.The clearly marked Pozidriv safety terminals

O5 are all captive. Both the 2-channel as well as the1-channel twilight switch with integrated digitaltimer can be sealed O6 .

From the programming point of view, the 1-channeltwilight switch with integrated digital timer hasexactly the same features and possibilities as theGLX Q 21 W 20 digital timer (see page T4.26),except for the number of programming stepswhich is 30 instead of 20. Figure 6 shows thecorrect mounting of the photocell. The photocellhas an IP65 degree of protection.

Wall mountable deviceThis all-in-one device is shown in photo 2.This complete device, including photocell, amplifierand output contact, has an IP54 degree of protection.

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fig.4

photo 1

fig.6

photo 2

Lux

> 700< 600< 500< 400< 300

Windowrow

Group 2

off on on on

Group 4

off off off on

O1

O2O5

O1O2O3

O6O O4

O5

all lights on at all timeGroup 1

onon on on

Table 1Innerrows

Group 3

off off on on

T4.31

Light sensitive switches

T4

Setting up a twilight switch forcorrect operation1.Connect the light sensitive sensor or photocell to

the appropriate terminals. In case only onesensor is used in combination with several 2-channel light sensitive switches, make sure toconnect terminal 10 only once.

2.Connect the load in series with the output contact(i.e. for the one-channel with integrated digitaltimer, connect terminal 4 with the live, terminal 3with one side of the load and the other side ofthe load with the neutral).

3. Put on the power supply (230V on terminals 1 and 2).4.Put the no-response on- and off-delay to 0 sec.5.Turn the knob for the setting of the light-intensity

at switching completely to the left (minimum).6.Wait for the intensity of the ambient light to reach

the level at which you want the device to switch.7.Now slowly turn the intensity knob to the

maximum, and stop immediately after you see theLED lighting up (the output-contact has switchedover simultaneously).

8.Set the on- and off-no-response delay to thedesired value.

9.At this time, the light sensitive switch is set upcorrectly.

Remarks1. If the LED is still off and you are at full scale, then

the intensity of the ambient light is over 500 Luxat that time. A filter should be applied to thephotocell and the procedure should be carriedout again.

2. If while selecting the threshold, the no-responsedelay is other than 0, please bear in mind that theoutput-relay won’t switch immediately.

3.Don't put the light-sensor near the light that willbe energised since this of course will lead tounstable on- and off-switching of the light.

Text for specifiers- The (programmable) twilight switch is a noise-free

electronic device and has a voltage-free change-over output contact.

- The output status is shown through a LED on thefront of the device.

- The one-channel twilight switch has a width of1 module, while the 2-channel and the 1-channel withintegrated digital timer has a width of 3 modules.

- The device is suitable for operating sun-blinds andshutters.

- At cos = 1, the output contact is capable ofswitching 16A while at cos = 0.6, a load of 2.5Acan be switched. Switching of a higher loadrequires the intermediate use of a contactor.

- The off-threshold level is at least 30% higher thanthe on-threshold level.

- The no-response delay is user-presetable between0 and 100 sec.

- One photocell operates one 1-channel twilightswitch or up to ten (10) 2-channel twilight switches.

- Besides the modular and DIN-rail mountabledevices, an all-in-one wall-mountable device isavailable.

- The protection degree of the twilight switch is IP20,while the photocell is IP65. For the all-in-one wall-mountable device, the degree of protection is IP54.

- The maximum cable length between the photocelland the light sensitive switch is 100m (2.5mm2).

- For the DIN-rail mountable devices, the safety-terminals are all captive and have Pozidriv screwsas a standard. Their capacity covers the rangefrom 1x0.5mm2 to 1x6mm2 or 2x2.5mm2.

- All DIN-rail-mountable devices are equipped with atransparent circuit indicator.

Additional specifications for programmable twilightswitches:- The twilight switch has a built-in digital time

switch with week-program with at least 30programming steps.

- Block programming is possible.- Switching accuracy is 1 minute, which is also the

shortest switching time.- The running reserve is at least 3 years from factory.- Summer-winter change occurs manually or fixed

automatically.- Manual override (fix-on, fix-off) is possible at all

time.

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Series T

Transformers

Function and rangeTransformers are mainly used for 2 reasons:- To galvanically separate one circuit from the other

and / or- To step down the energy supplier network voltage

in order to supply low voltage circuits.

Two main different subfamilies exist in the completeSeries T range of transformers:- Bell transformers and- Safety transformers.

For the range of the bell transformers, devices with5, 10, 15 and 25VA output power are available,some with and some others without short-circuitprotection, some with one combined secondarywinding of multiple voltages 12/24V, others with twoseparate secondary windings for 8/12V.

This range also includes an 8VA/8V bell transformerwith integrated on-off switch.

For the range of the safety transformers, the output-power covers the range of 15 up to 63VA, all havetwo separate secondary windings for 2 voltages(12/24V) and all are short-circuit proof.All bell as well as safety transformers have doubleisolation.

TerminologyFor more detailed information, please refer to thestandard IEC 61558-2-6 (issued in 1997) which servedas base for the definition of the below terminology.

Safety transformerAll Series T transformers have an output powerbelow or equal to 63VA.

According to the above mentioned standard, theratio between the output voltage at no-load and atrated output can be as high as 100%, at ratedfrequency and rated ambient temperature.

This means that with a nominal output voltage of12V (at nominal load), the output voltage at no loadis allowed to be as high as 24V.

However, for all Series T safety transformers, thisratio is limited to 105%.

Also, the real output voltage of the highest voltageoutput at rated output power, at rated supplyvoltage, at rated frequency and below or equal tothe rated ambient temperature, is guaranteed not todiffer more than 5% from the rated output voltage(above or below).

Bell transformerCompletely the same explanation as for the safetytransformers can be given here except for the ratiobetween the output voltage at no-load and at ratedoutput, which is limited to 150% in the case of theSeries T bell transformers.

Short-circuit proofTransformers can be short-circuit proof by constructionor by integrating a PTC in the primary of the transformer.

Short-circuit protection by construction is achievedthrough the geometry of and material used in thetransformer. In this case, the transformer saturateswhen trying to pull more secondary current thanallowed. However this causes the transformer toexcessively heat up.

A better way of protecting a transformer againstoverloads or even against destructive secondaryshort-circuits, is to include a PTC-resistance in theprimary of the transformer (see fig.1).

In this way, an excessive high secondary current will‘ask’ for an excessive high primary current. Thishigh primary current will heat up the PTC, which inits turn will increase its resistance, limiting herewiththe primary current.All safety transformers and some bell transformersare protected against secondary shorts by means ofa PTC in the primary winding of the transformer.

Double isolationDouble isolated transformers have two differentisolations between their primary and secondarywindings: the first being the wire-isolation, thesecond being the isolation formed by the resin-castthat is completely encapsulating the transformer.Both the symbol used to indicate double isolationas well as the schematic representation of a doubleisolated transformer are given in figure 2.

fig.1

fig.2

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One combined vs. two separate secondarywindings or voltagesIn a transformer with one combined secondarywinding for 2 voltages, obviously the cross sectionof the wire is the same for the whole secondarywinding. The different output voltages are derivedby connecting at different places of the onesecondary winding (see fig.3).

As a consequence, the output power is different forthe different output voltages.

Let’s assume the power of the transformer in figure3 being 15VA and two secondary voltages being 12and 8V. Obviously, the maximum output power thatthe transformer can deliver is directly depending onthe maximum current that may flow through thesecondary winding, the latter one being limited bythe cross section of the wire.

In this example here, the cross section of thewire used in the secondary winding is such that acurrent, maximum equal to 1.25A, may flow at all time,generating an output-power of 12 x 1.25 = 15VA. Forthe 8V output, as the cross-section of the wire is thesame as for the 12V output, so is the maximum current! This means that in this case, the maximum outputpower is reduced to 8 x 1.25 = 10VA.

In a transformer with separate secondarywindings, there exists one winding per outputvoltage (see fig.4).

This allows different cross-sections for bothsecondary winding wires, making it possible tohave the nominal output power at all the differentoutput voltages.

Except for the 666650, 666651 and 666652, allSeries T safety and bell transformers have theirnominal power present at all output voltages.

Features and benefitsIn figure 5, the front views of the 2 and 4module Series T transformers are shown.As always, the main characteristics of the deviceare printed in the upper part O1 . These are:- Output power- Nominal rated primary voltage- Secondary voltages- Wiring diagram- 6 digit ordering code.

From the point of view of output power, a completerange is available: 5, 10, 15, 25, 40, and 63VA, asbell transformer for an output power up to 25VA andas safety transformer from 15VA and up.The range also includes a bell transformer withintegrated on-off switch, a buzzer with integratedtransformer, modular bells and modular buzzers on24V as well as on 230V.

All Series T transformers are short-circuit proof, the666650, 666651 and 666652 by construction, all theothers by means of a PTC

All Series T transformers have double isolation andexcept for the 666650, 666651 and 666652, all havethe rated output power at each output voltage.

As always, the function of the transformer or thecircuit that it supplies with power can be indicatedbehind the circuit indicator O2 i.e. bell front door,power supply contactors, … .The clearly marked Pozidriv terminals O3 are allcaptive.

fig.4

fig.5

fig.3

O1

O2

O3

O3O2

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General remarks- DO NOT put secondary windings of transformers

in parallel in order to increase the output power, asthe slightest difference in output voltage will resultin a huge current circulating in both secondarywindings (see fig.6).

- When supplying contactors or impulse switches atlow voltage, and especially when several devicescan be operated simultaneously (i.e. impulseswitches with centralised command), care shouldbe taken to correctly size the step-downtransformer.

Text for specifiers- All transformers have the CEBEC - IMQ - VDE

approval marks.- All transformers have their nominal output power

available on all different output voltages.- All transformers are protected against short-

circuits. A direct short-circuit on the secondarywinding will not result in a permanent damage dueto excessive heating.

- All transformers have double isolation with anisolation voltage between the primary and thesecondary winding of at least 3.75 kV.

- The transformers are cast resin.- The captive Pozidriv cage terminals have a

capacity of 1 to 16mm2.- The terminals guarantee a solid, reliable

connection.- The protection degree of the transformer is IP20.- All transformers are modular and DIN-rail

mountable.- The transformers are all equipped with a

transparent circuit indicator.

fig.6

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Series MT

Measurement Instruments

Function and rangeThe range of AC-measurement-instruments consistsof 2 main families: analogue and digital. The analogue family includes:- voltmeters- Ammeters- frequency meters- hour counters

The digital range consists of: - voltmeters- Ammeters- frequency meters- kWh meters- energy meters- net analysers

On top of this, several accessories completethe range: - a complete range of current transformers,- a complete range of corresponding scale-plates,- selector switches for switching a single phase

measurement instrument between the differentphases of a 3-phase energy distribution system,

- a very user friendly Windows-95 (and up) softwarefor use with the net-analyser

- an RS232-RS485/422 signal converter forinterfacing between a PC and the net-analyser.

TerminologyClassThe accuracy or class of a measurement instrumentis the maximum error between the displayed valueand the real value.

For an analogue measurement instrument, the classis equal to a percentage of the full scale. On avoltmeter with 300V full scale, a class of 1.5 meansa maximum error on the reading of 4.5V, no matterwhat the actual reading is. This means that if avoltage of 228V is measured, the real value can beanything in between 232.5 and 223.5V, whereas ifthe reading would be 10V, the actual value would bebetween 5.5 and 14.5V.

On a digital measurement instrument, on top of themeasurement-error, there is also a rounding errorsince the display does not have an unlimitednumber of digits. In this case, if the full scale is300V and the display has 3 digits, a device with aclass of 0.5% ± 1digit can have an error in thereading of maximum ± 2V, again as above,independent of the actual reading.

True-RMS versus Average AC-meteringIndependently of the electrical signal waveform, atrue-RMS meter (true root-mean-square meter)measures the correct electrical value (except for theclass-error of course; see above). This means thata true-RMS-Ammeter would measure exactly thesame current as would be measured by a DC-Ammeter, metering a current flowing through thesame resistance, provoked by a DC-voltage equal tothe RMS-value of the voltage waveform. Figure 1shows different waveforms with their respectiveRMS-values. An average-metering instrument on the other hand,measures the magnitude of the electrical signal andmultiplies it with a factor. As this multiplier is onlycorrect for one specific waveform (see figure 1), themeasurement is incorrect, when measuring with thisdevice an electrical signal with a waveform otherthan the one for which it was meant to be.

All Series MT analogue measurement instrumentsare true-RMS, all simple digital measurementinstruments (V, A and W) are average-meteringinstruments and all high-end digital measurementinstruments (kWh and net analysers) again are true-RMS measurement devices.

fig.1

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Voltmeter

In the case of a digital voltmeter, besides theconnection of the circuit of which the voltage needsto be measured, an independent auxiliary powersupply needs to be connected as is shown in figure 3.The fact that the measuring circuit is differentfrom the supply circuit makes this voltmeterextremely versatile, as it can be used to measureall voltages within its scale. This also minimisesthe measuring error due to the load-influence ofthe voltmeter itself.

When using one single-phase voltmeter in a 3-phase system, the different line-to-line or line-to-neutral voltages can be measured byusing the voltage selector switch (fig.4).

AmmeterSimilar to the previous 3 figures, figures 5 to 7 showthe connection diagrams for the Ammeters.

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fig.3fig.6

fig.7

fig.4

fig.5

fig.2 Connection diagram

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The scaleplates of the analogue Ammeters can beeasily interchanged as is illustrated in photo 1.

Using a digital Ammeter in combination with acurrent transformer, requires the correct set-up ofthe Ammeter. The multiplying factor is set by meansof dip-switches as is shown in figure 8.

Frequency meter andhour counterFigures 9, 10 and 11 show the connection of thefrequency meters and of the hour counters. Notethat in the case of the digital frequency meter, theinternal electronics are supplied externally through aseparate auxiliary supply.

WattmeterThe single- and three-phase Wattmeters areconnected as shown in figures 12 and 13.

fig.9

fig.10

fig.12

fig.13

fig.11

fig.8

photo 1

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Energy (kWh) meterFigures 14 to 18 show the different ways ofconnecting the single and three-phase energymeters. The impulse output can be used to monitorthe amount of consumed energy from distance (i.e.connection with counter-input-card of PLC). Like the digital Ammeters, correct set-up of thecurrent inputs is accomplished by means of dip-switches located at the front-top of the device(fig.19 next page).The impulse output also needs to be correctly set-up. Figure 20 (next page) shows the setting of thedip-switches for the use of different currenttransformers and for different impulse outputsetups.

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fig.17

fig.18fig.15

fig.16

fig.14

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fig.20

fig.19

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Net analysers (Multi Meters)The series MT DN 1 and MT DN 3 are electronicinstruments especially developed for measuring andcontrolling several electrical parameters such asvoltage, current, power, energy, harmonic distortionin a single or three phase network. All the measured values can be viewed in real timeon the analyser display or transmitted to a remotedisplay (PC/PLC) through a serial interface RS 485(except the harmonic waves).

Technical features

OperationDisplay and programming of the various parametersis done by 3 keys:- UP (next)- DOWN (previous)- ENTER (confirmation on parameter alteration).Press ENTER to light up the display.

With the display illuminated, the first page showsvoltage, current, active power and power factor forall phases.

L1 L2 L3

3xV 0000 0000 00003xA 0000 0000 00003xW 0000 0000 00003xPf 0000 0000 0000

By pressing UP, the second page displays theapparent, reactive and active power and cos forall phases.

L1 L2 L3

3xVA 0000 0000 00003xVAR 0000 0000 00003xW 0000 0000 00003xPf 0000 0000 0000

By pressing UP again, the third page shows the totalvalues of the power, frequency and the cos .‘t1’ is the time integration (0-15 min.) of the valuesof IPM and IPL shown on the fifth subpage (see below).

totals: (t1 15 min.)VA 0000VAR 0000 Fr 0000 HzW 0000 Pft 0000 ind (cap)

By pressing UP once more, the fourth page showsthe total values (import or export) of the active andreactive energy. The arrows inform about the actualfunction of the analyser.

+kWh (T)> 00000000.00+kVARh (T)> 00000000.00-kWh (T)> 00000000.00-kVARh (T)> 00000000.00

By pressing ENTER, the first subpage shows thevalues of the active/reactive energy of the 1st tariffmeter.

+kWh (1) 00000000.00+kVARh (1) 00000000.00-kWh (1) 00000000.00-kVARh (1) 00000000.00

By pressing ENTER, the second subpage shows thevalues of the active/reactive energy of the 2nd tariffmeter.


Electrical parameters

CurrentActive power Reactive powerFrequencyApparent powerPower factorTotal active powerTotal reactive powerTotal apparent powerTotal power factorHarmonic distorsion(numerical and graphic)

Total harmonic distorsionVoltage crest factorCurrent crest factorTotals integrated on timeof S-Q-P-Pf-F

Computed values

S1-S2-S3 (VA)Pf1-Pf2-Pf3 (cos )Pt (W)Qt (VAR)St (VA)Pft (cos )3xV and 3xI (h1…h15%)

3xVthd and 3xIthd (%)3xVcrs3xIcrs

The above measured values change automatically when the voltage and current ratios change

Measured values

I1-I2-I3 (A)P1-P2-P3 (W)Q1-Q2-Q3 (VAR)Fr (Hz)

Analyser versionDisplay

Voltage inputSecondary currentMeasure method

Elaboration timeClass

Serial communicationProtocolMemoryAddress no.Power supply

ConsumptionDimensions

V:427LCD back illuminated high performance4 lines x 20 columnsalphanumerical charactersFFT semigraphic150V - 300V - 600V5A RMS (1A rms on request)128 scannings/period(for the 3 currents and 3 voltages)200 ms0.5% for voltage and current0.3% for frequency1% other parametersRS 485 (2 wires op to insulated), 9600 baudMODBUS (other on request)EEPROM 2kB0... 255230V + 10%/-20%(other on request)< 5VA8 modules

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By pressing ENTER, the third subpage shows thevalues of the active/reactive energy of the 3rd tariffmeter.


By pressing ENTER, the fourth subpage shows thevalues of the active/reactive energy of the 4th tariffmeter.


By pressing ENTER, the fifth subpage shows theactual peak values (IPM) and previous (IPL),integrated in 15 min., of the active/reactive energy

+kWh IPM 00000000.00+kVARh IPM 00000000.00+kWh IPL 00000000.00+kVAR IPL 00000000.00

By pressing ENTER, the sixth subpage shows theregistered values on two digital inputs, if connected.

cnt. 1 00000000.00cnt. 2 00000000.00

By pressing UP, the fifth page shows the totalharmonic distortions and the crest values of voltageand current, of the three phases.

L1 L2 L3

3xVthd% 0000 0000 00003xVcrs 0000 0000 00003xIthd% 0000 0000 00003xIcrs 0000 0000 0000

By pressing UP, the sixth page shows in a numericand graphic way, the distortion until the fifteenthharmonic wave.

V1000%h3000%

By subsequently pressing ENTER, the relativeimportance (influence) of the different harmonics isdisplayed (h1, h2, ... h5). By pressing ENTER formore than 2 seconds, you can select the electricalquantity (V1, V2, V3, I1, ...) which you want theharmonic distortion to be displayed.

ConfigurationBy pressing the up- and down-keys simultaneouslyfor more than two seconds, the configuration menuis entered.

CONFIG V.427Meter SystemInputs OutputsPassword > exit

As long as the password is not entered, none of thesubmenus can be accessed and consequently noneof the parameters can be altered. With the cursor(arrow) on ”password” press the up- and down-keyssimultaneously. On the display, ”password .......”appears. Now press in sequence ”up”,”up”,’down”,”up”. You will see now ”New password” on thedisplay. Now it is possible to move the cursor i.e. to”meter” The cursor (arrow) can be moved bypressing enter.

By moving the cursor in front of “Meter” and bypushing the UP key, the meter submenu appears asshown below:

volt range 000 Vvolt in mult 000 xcurr. range 0000 A

> exit

As before, by pressing ENTER, you can change theposition of the cursor.

>volt range: by pressing UP or DOWN, the input voltageis set (150V, 300V or 600V are the ranges;if you have 100V input, choose 150V)

>volt in mult: by pressing UP or DOWN, themultiplication factor is set (from 1x to 240x)

>curr. range: by pressing UP or DOWN, the primarycurrent of the transformer is set, from 5A to10000A (in steps of 5A)

>exit: by pressing UP or DOWN, you return to theCONFIG menu

By choosing System and pressing UP, the followingscreen appears:

baud rate 0000net addr. 000rst energy (rst IPmax)rst counts >exit

>baud rate by pressing UP or DOWN, you can changethe reading speed (bit/sec) between 1200,2400, 4800 and 9600 baud

>net addr by pressing UP or DOWN, you can choosethe address, from 1 to 255

>rst energy by pressing UP or DOWN, you can cancelthe memorised energy values. By pressingENTER, you see >rst IPmax and pressingUP or DOWN, you reset the actual values

>rst counts by pressing UP or DOWN, you reset thetotals on the digital inputs

>exit by pressing UP or DOWN, you come backto the CONFIG menu

Again, to change the existing values, it is necessaryto enter the password as explained before.

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By choosing ‘Inputs’ and pressing UP, the followingscreen appears:

inp.1 000 /impinp.2 000 /impener IP 15 mintarifs: 2(4) >exit

>inp.1 by pressing UP or DOWN, you changethe ‘weight’ of the impulses on thedigital input n° 1

>inp.2 by pressing UP or DOWN, you changethe ‘weight’ of the impulses on thedigital input n° 2

>ener IP by pressing DOWN, you can modify theintegration time of the totals bypressing UP, you see the synchro-nisation screen of the input n° 1

inp.1 ener syncinp.2 000 /impener IP inp 1tariffs: 2(4) >exit

As before, by pressing UP again you seethe synchronisation screen of the input n° 2

inp.1 000 /impinp.2 ener syncener IP inp 2tariffs: 2(4) >exit

As before, by pressing UP again, youcan use the input n° 3 (available whenonly 2 tarifs are choosed)

inp.1 000 /impinp.2 000 /impener IP inp 3tariffs: 2(4) >exit

>tariffs by pressing UP or DOWN, you changethe tariff n° 2 or 4 (on the screen with‘ener IP 15 min.’ only)

>exit pressing UP or DOWN, you come back tothe CONFIG menu

Again, to change the existing values, it is necessaryto enter the password as explained above.By choosing ‘Outputs’ and pressing UP, thefollowing screen appears:

out1 out2al: al:0000 0000-t: 00 -t:00 >exit

>out 1/out 2 by pressing UP or DOWN, you choosethe alarm type (< min or > max)

>al by pressing UP or DOWN, you choosethe parameters for which you want thealarm option (always ON-always OFF-Pft-Hz-Vx-V3-V2-V1-Ix-I3-I2-I1-Qt-Pt-plkVARh-pl kWh)

>000 by pressing UP or DOWN, you changethe numerical value of the alarm

>-t by pressing UP or DOWN, you changethe alarm delays (0…15 sec)

>exit by pressing UP or DOWN, you comeback to the CONFIG menu

Again, to change the existing values, it is necessaryto enter the password as explained above.

RemarkChoosing ‘Password’ you can change the valuesinto the various screens, as explained before, bypressing in sequence: UP-UP-DOWN-UPYou can also enter a secret, personalised passwordthat must have a different sequence with respect tothe password already mentioned above.

To enter a personalised password, go to theCONFIG menu, move the arrow to >Password;press UP or DOWN until you see >Password:..........;press in sequence UP-UP-DOWN-UP until you see>New password:..........; enter the new sequence,(different from the previous); the word ‘repeat..........’appears, now repeat the new sequence and the newpassword is memorised.

To exit from the CONFIG menu, move the arrow tothe >exit, then press UP.

Connection diagrams

fig.22 1-phase net analyser

fig.23 3-phase net analyser

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Typical setups for serial communication

fig.24

fig.25

fig.26

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Surge arresters

IntroductionIn order to protect any type of electric or electronicequipment such as TV’s, PLC’s, computers, or evenentire electrical installations against destructiveovervoltage surges, the installer will nowadays useSurge Arresters or Surge Protection Devices(SPD’s.)Besides the trivial benefit of protecting theinstallation and the equipment against destructiveovervoltage surges, the benefits indicated below areless obvious but most certainly more important:- Avoid downtime; this secondary effect on a

business may be much greater than just the costof the PCB which was destroyed by the surge;

- Avoid equipment lifetime reduction by avoidingdegradation of internal components due to longterm exposure to low level transients;

- Avoid disruption or malfunction; although nophysical damage is apparent, surges often upsetthe logic of microprocessor-based systemscausing unexplained data loss, data and softwarecorruption, system crashes and lock-ups.

When comparing the cost of installing SPD’s with thedowntime cost and the cost of repairing an electricalinstallation and to replace all hooked-up equipmentafter a serious surge has "visited", there is no furtherjustification needed and the need to install SPD’s,even in the smallest installation, becomes obvious.

BackgroundDisturbancesTable 1 summarises the different disturbancescausing different problems while propagating in anelectrical energy-distribution system. Besides devices used to suppress overvoltagetransients, typically characterised by a very bigmagnitude (1000’s of volts) and very short duration(microseconds), devices for noise filtration (lowvoltage, low energy, random) are also offered.

Origin of SurgesThe most commonly known "field"-surge generatorsare listed below:- Electronic dimmers based on the phase-cut principle- Motors and transformers. At startup, they are a

real short-circuit, generating a very high inrush-current

- Welding machines- Lightning strikes, both direct or indirect

(inductively coupled)- Power-grid-switching by the energy-supplier.

Voltage-generation mechanismAs all surge originators are currents, the mechanismthat translates this current into a voltage is:U = -L x (di/dt) in which:- U = generated voltage,- L = inductance of the conductor in which the

current is flowing,- di = the change in current,- dt = the time in which the current-change di took place.As the change in current is very high, while the durationis very short, even with a low conductor inductance,the result of L x (di/dt) can become astronomical.

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Description

A planned or accidental lossof power in a localized area of community

A decrease (sag) or increase(swell) in voltage

A sudden change in voltage upto several thousand volts (alsocalled an impulse, spike orsurge)

An unwanted electrical signalof high frequency from otherequipment

A distortion in the voltage dueto the power supplies in someequipment

Problem

Temporary interruption/long-term outage

Sag/swell

Transient

Noise

Harmonic distorsion

Cause

Equipment failure, weather, animals,human error (auto, accidents, etc)

Major equipment start-up orshutdown, short-circuits (faults),undersized electrical circuits

Utility switching operations, starting andstopping of heavy equipment or officemachinery, elevators, welding equipment,static discharges, lightning and storms

Interference from appliances, microwaveand radar transmissions, radio and tvbroadcasts, arc welding, heaters, laserprinters, loose wiring and impropergrounding

Power supplies in computers, adjustablespeed drives, and fluorescent lighting

Effect

Systems shut down

Memory loss, dataerrors, dim or brightlights, shrinking displayscreens, equipmentshutdown

Processing errors, dataloss, burried circuitboards or otherequipment damage

Noise disturbs sensitiveelectronic equipment, butis usually not destructive(can cause processingerrors and data loss)

Overheating of motors,transformers, and wiring

Duration

Temporary: less than 1 minuteLong-term: more than 1 minute

From milliseconds to a fewseconds

Microseconds

Sporadic

Sporadic

Disturbances in an electrical energy distribution system (table 1)

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Overvoltages and dito protectionAll electrical and electronic devices on the market arenormally designed according to the applicablestandards. According to these standards (the normaloperating voltage and the applicable creepagedistances) the equipment and the installation must beable to withstand against a certain voltage, withoutbeing destroyed. In general, this voltage is called thebreakdown voltage and is equal to several times thenormal operating voltage.If the device is hit with a voltage above thisbreakdown voltage, no guarantee is given for thenormal operation of the device and no guarantee isgiven that afterwards the device will still workproperly. In the majority of cases where a device orinstallation is hit with a so-called over-voltage, thedevice or installation is completely ruined andbecomes extremely dangerous towards theenvironment.To avoid these severe surges from travellingthrough the installation, and destroying allconnected devices, SurgeGuard SPD’s should beinstalled. The voltage at which an SPD clamps to is known asthe protection voltage Up (see below) and should

always be lower than the breakdown voltage of thedevice or installation that is to be protected. Table2 summarizes the 3 main categories of equipmentwith their respective protection levels.

TerminologyBefore going into more detail in technology matters,this chapter clarifies most of the SPD-relatedterminology.

IMAX

Is the maximum current the SPD can carry (deviateto ground). According to the standard, an SPDshould be able to carry this current at least once.

ClassThe Class of the SPD defines the amount of energythe device is able to deviate towards the protectiveground. As surges are impulses, and since theamount of energy is proportional to the surfacebelow the curve (see fig.1), the class can also bedefined by giving the rise-time, the time to fall backto 50% and the magnitude (IMAX) of the impulse(see also fig.1).

In order to be able to compare different devices,3 standardized impulse waveforms have been defined:- 10/350 (Class 1) which has the highest energetic

content,- 8/20 (Class 2), and - 4/10 (Class 3) with the lowest energetic content.Class 1 devices are normally used for front-endprotection, i.e. for high-energy deviation comingfrom direct lightning strikes whereas class 2 andclass 3 devices are used at a lower level in order toreduce the residual voltage (UP) as much as possible.

UP

The protection voltage or residual voltage (UP) is thevoltage to which the SPD clamps when it is hit witha standardised impulse waveform for its specificclass, with a magnitude equal to INOM.

INOM

Is the current that the SPD can deviate (minimum20 times). This current is of course much lowerthan IMAX.

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UP=2.5kV

Electrical control devices(i.e. wiring devices),motors, transformers

UP=1kV

PLC’s, CNC-controllers,personal computer,

computer network, fax,modem, hi-fi, VCR, TV,alarm system, medical

scanning and monitoringequipment, ...

EnergyCLASS 1

EnergyCLASS 2

max

max2

10 20 350

t(usec)

fig.1

Solutions

TemporaryUninterruptible or standby power supply (for outages of about 15 minutes)Motor generator set (for outages of very short duration only)

Long termStandby generator

Computer or equipment relocated to a different electrical circuitVoltage regulatorPower line conditionerUninterruptible power supplyMotor generator

Surge suppressorPower line conditionerMotor generator

Isolation transformerPower line conditionerMotor generatorUninterruptible power supplyLoose wiring and grounding problems corrected

Electrically separate loads that cause harmonic distortionPower line conditionerUninterruptible power supplyMotor generatorOversize electrical equipment so it does not overheat

UP=1.8kV

Appliances (dish-washer,laundry machine, freezer,

refrigerator, hot, …)

Protection levels (table 2)

V-I characteristics

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SPD-technologyTable 3 shows the various technologies that canbe applied to protect an installation or equipmentagainst overvoltages. Their respective maincharacteristics are also shown. To protect a mains-power distribution system from overvoltage surges, onlyZinc-Oxide-Varistor (or more in general the Metal-Oxide-Varistor, in short the MOV), Gas-Tube and Spark-Gap technologies are used.

SurgeGuard SPD’sClass 2 SurgeGuard devices all have MOV-technology inside. Besides the MOV’s, each phaseis also equipped with a thermal fuse in order to takethe device of-line in case the MOV breaks down and

becomes a short-circuit (i.e. after thermal runaway).In addition, all devices have an optical fault-indicator and some have a voltage-free contact fordistant reporting. This contact reflects the status ofthe thermal fuse, and thus indirectly also the statusof the MOV. Once the indicator turns red or thecontact has switched over, the SurgeGuard shouldbe replaced as soon as possible.The class 1 SurgeGuard devices are based onspark-gap technology. As a spark gap can neverturn into a short-circuit, the class 1 devices don’thave a thermal fuse and as a consequence neitheran auxiliary contact nor an optical status indicator.

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Redline

Devicetype

Ideal device

Zinc oxidevaristor

Zener

Growbar(zener + SCRCombination)

Sparkgap

Triggeredsparkgap

Selenium

Siliconcarbidevaristor

Leak-age

Zerotolow

Low

Low

Low

Zero

Zero

Veryhigh

High

Followon I

No

No

No

Yes(latchingHoldin I)

Yes

Yes

No

No

Clampingvoltage

Low

Moderate tolow

Low

Low

Highignitionvoltage

Low clamp

Lowerignitionvoltage

Low clamp

Moderatetohigh

High

Energycapability

High

High

Low

Medium

High

High

Moderatetohigh

High

Capacitance

Loworhigh

Moderate to high

Low

Low

Low

Low

High

High

Cost

Low

Low

High

Moderate

Lowtohigh

High

High

Relativelow

Responsetime

Fast

Fast

Fast

Fast

Slow

Moderate

Fast

Fast

Characteristics and features of transient voltage suppression technology (table 3)

PEAK VOLTAGE(IGNITION)

WORKING

VOLTAGE

T4.47

Surge arresters

Different earthing systemsrequire different SPD’sDepending on how the earthing of the powerdistribution system is implemented, single pole ormultipole SPD’s are required in order to fully protectthe installation and the hooked-up equipment againstdestructive overvoltages. For an in-depth explanationabout the different existing earthing systems, pleaserefer to page T2.4.For the explanation below, we will always take theworst case example: a direct lightning-strike-hit on onlyone of the conductors of a 3-phase energy distributionsystem, discharging through this one conductor only.We have also simplified the drawings by onlyshowing a varistor, and not the complete internalcircuit including the thermal fuse, fault-indicator-and auxiliary-contact-circuit.

TT and TN-S earthing systems require multipoleSPD’sFigure 2 shows a TT-earthing system, with varistorsinstalled only between each live conductor andprotective earth (PE), and also between the neutraland the PE.

Right after the direct lightning strike hit, thetremendous amount of free charges injected in tothe conductor, generates a very strong electricalfield, pushing these free charges as far apart aspossible. As a result, an impulse-wave-shapedcurrent travels away from the point of impact, inboth directions along the conductor towards the PE,generating a voltage-drop across the conductorgiven by the law U = -L x (di/dt). Typically, a 10kA8/20 current-impulse generates a voltage of 1250Vacross a wire with a length of 1m.The varistor installed on the hit-by wire will clampthis generated voltage to a value corresponding tothe instantaneous value of the current, given by theU-I-plot of the varistor (see table 3), and will deviatethe current (I2) towards the local PE.Because of the relative high local PE-impedance(typically Z2 = 10…30 ohm), the voltage-drop U2generated by I2 could easily reach the level at whichthe varistor between local PE and Neutral starts toclamp, and therefore also starts to conduct current

towards the PE of the energy supplier (I1).Once this happens, the bulk of the current will flowthrough this parallel path, since on the side of theenergy supplier, the earthing as well as thegenerator itself (or secondary of an intermediatestep-down transformer) has a very low impedance(typically Z1 = 0.3…1 ohm).

As you can easily see, the clamping voltagebetween live and neutral is UP1 + UP2, which isroughly twice the clamping voltage of a varistor andnot once as may be expected. This results in a verypoor degree of protection. Therefore, in this case anadditional varistor between each live conductorand the neutral is necessary to guarantee fullprotection (see fig.3).

Based on the above explanation, you can easilysee that in the case of a TN-S earthing system,multi-pole SPD’s are required in order to fullyprotect the installation and hooked-up equipmentagainst over-voltage-surges (fig.4). Here however, since the impedance towards earthvia the neutral-conductor is roughly the same asthe one via the PE-conductor, both conductorswill share the current–surge, roughly equally.Nonetheless, again the varistor between the neutraland PE will conduct current, because it will clampthe voltage across itself to its UP and thereforeagain the clamping voltage between the live andthe neutral becomes roughly twice UP.

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fig.2

fig.3

fig.4

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IT and TN-C earthing systems require single-poleSPD’sAs can be seen in figure 5, the main differencebetween a TT- and an IT-earthing system is the highimpedance Z through which the generator or thesecondary of the step-down-transformer isgrounded in an IT-system.Therefore, the low-impedant current-path towardsthe PE of the energy-supplier which exits in a TT-system, no longer exists in an IT-system, and forthis reason will never conduct current. So noadditional varistors between the live conductors andthe neutral are required to guarantee full protection.

In case of a TN-C-earthing system, the Neutral-and PE-conductor are combined in to one PEN-conductor (fig.6). Therefore there is no alternativeparallel current path as it exists in a TN-S-systemand thus the highest possible voltage between theneutral and a live conductor is equal to theclamping voltage of only one varistor.

TN-C-S earthing systemsLast but not least, in a TN-C-S-earthing-system,always use multipole SPD’s where the neutral isseparately available and the equipment requires theNeutral to be connected. Use single pole SPD’s onlyif you are sure that the neutral is not separatelyavailable or if the neutral doesn’t need to beconnected to the equipment (i.e. for a 3-phase 400Vdelta motor).

fig.5

fig.6

Cascading of SPD’sIn areas where the exposure to lightning is veryhigh, SPD’s with a high IMAX, must be installed (seebelow). In general, the UP of those devices is toohigh to protect sensitive equipment like i.e. TV-,VCR-, and computer-equipment. Therefore, besides these high IMAX / high UP front-end SPD’s, devices with a lower UP are to beinstalled in cascade (parallel) in order to bring theprotection voltage down to a reasonable level.Special care must be taken when two SPD’s, bothbased on MOV-technology, are connected inparallel, especially when their electricalcharacteristics differ a lot from one another.As can be seen in the graph of figure 7, whenputting two MOV’s direct in parallel, thus withoutany substantial wiring in between, the one with thelowest clamping voltage and lowest IMAX willconduct the bulk of the current.

This set-up is completely missing its goal, since theMOV with the highest and not the one with thelowest IMAX should conduct the largest portion of thecurrent.In order for this set-up to be effective, theinterconnecting wire between both SPD’s shouldhave at least a length of 1m (the longer, the better)introducing a series inductor. If this is practicallyimpossible, a real inductor should be installedbetween both SPD’s (fig.8).

SPARK GAP

MOV(2)

MOV(1)

fig.7

fig.8

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T4.49

Surge arresters

The SGC40 has a 15µH coil, capable of conducting40A, included in the range for this purpose.Figures 9 and 10 are illustrating the effect ofcascaded MOV’s.Figure 9 shows the clamping of a 20kA-270V MOValone. When the device is hit with a standard 20kA-8/20 impulse wave (red curve), the voltage at whichthe MOV clamps is 1.68kV (green curve).Figure 10 shows the clamping of the same 20kA-270V MOV in parallel with an 80kA-320V MOV up-front. The interconnection between the two MOV’shas a length of 1m and a cross-section of 32mm2.Applying the same standard 20kA-8/20 impulse wave(green curve) to this cascade, the voltage at whichthe 20kA-270V MOV clamps is much lower (900V)and much more stable (yellow curve).

Selection of up-stream circuitbreakerEventhough all MOV-based SurgeGuard SPD’sincorporate internal protection (thermal fuse), as a generalrule, a circuit breaker or fused disconnect should beinstalled up-stream of the SPD. In all cases, even in thecase where a general circuit breaker is already installed,it’s advisable to add a circuit breaker (F2) just up-streamof the SPD, in a selective way (fig.11). This provides ameans of disconnecting the SPD and not the entire

fig.9

fig.10

installation should the surge arrester fail. It also allows thedisconnection of the SPD for service or maintenance.To be effective, the circuit breaker or fuse directly up-stream of the SPD should be capable of cutting thetheoretical short-circuit current at the place where theSPD is installed. In other words, the short-circuitcurrent interrupting capacity of the circuit breakershould be at least equal to or preferably higher than thecalculated short-circuit current.For the different values of IMAX, table 4 shows thenecessary short-circuit interrupting capacity of the up-stream circuit breaker. These values were obtained bycalculating the short-circuit current with only the short-circuit resistance of the SPD as the limiting factor.

An important consideration here, is that these areworst case values, because in a real installationseveral other resitances add up to the short-circuitresistance of the SPD, and therefore decrease theshort-circuit current even further. The size of thecircuit breaker will not affect the performance of theSPD. The circuit breaker size should be co-ordinatedwith the connecting wire and should be sizedaccordingly to the applicable National Electrical Code.

Features and benefitsWhat can be seen from the outsidePhoto 1 shows a single and multipole SurgeGuardSPD. As always for the Elfa+ range of products, themain characteristics are printed in the upper partof the front of the device O1 . These are:- IMAX

- Class- UP at INOM

- Operating voltage UN

- Wiring diagram- Single or multipole configuration.The IMAX of the SurgeGuard SPD’s goes from 20kAover 45 to 65kA for the plug-in class 2 devices, upto 80kA for the monobloc class 2 devices and up to100kA for the class 1 devices.

300 mA EP30C16/C20

F2

SG 80kA

EP30C16/C20300 mA

30 mASG 20kAF3

SG 45kAor 20kA

fig.11

SPD IMAX

80kA45kA20kA

green: residual voltagered: 8/20 current impulse

blue: residual voltage after 1st stageyellow: residual voltage after 2nd stagegreen: 8/20 current impulsered: current through 2nd stage

EP100EP60EP30

Short-circuit interrupting capacity

Table 4

Redline

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All types are equipped with 50mm2 terminals O2with captive Pozidriv screws. The terminal-positionis aligned with the terminal-position of the Elfa+MCB’s offering the benefit of interconnecting bothdevices with a pin- or fork-type busbar. Easy DIN-rail extraction as is implemented on theMCB’s and RCD’s is also being used here due tothe same DIN-rail clip used O3 .All single-pole SPD’s are keyed plug-in-devices O4and have a mechanical fault indicator, O5 while allmultipole devices are mono-block (not plug-in) andhave an LED fault indicator O6 .The whole range of class 2 SurgeGuard SPD’s isavailable with or without a voltage-free auxiliarycontact for remote indication O7 . Both the auxiliary contact as well as the faultindicator reflect the status of the thermal fuse, andthus indirectly also the status of the MOV (seeexplanation below and fig.13).Once the fault indicator turns red and the auxiliarycontact has switched over, the SurgeGuard should bereplaced as soon as possible since from that momenton there is no overvoltage protection.

What’s insideClass 2 SurgeGuard devices all have MOV-technology inside. The wiring diagram of a single-phase multipole SurgeGuard is drawn in the figurebelow. Besides the MOV’s, each phase and the earth arealso equipped with a thermal fuse O1 in order totake the device OFF-line in case the MOV breaksdown and becomes a short-circuit (i.e. afterthermal runaway). In addition, all devices have an optical fault

photo 1

Phase

Neutral

D3T1

T2

T3

F1

F2

RV1

RV2

RV3

R3

D1 R1

C1 C2

Q1

C2

DS1

K1J1

fig.13

O5

O2

O7

O7

O4 O6

O2

O1

O3

indicator O2 and some have a voltage-free contactfor remote indication O3 . The class 1 SurgeGuard devices are based onspark-gap technology. As a spark gap can neverturn into a short-circuit, the class 1 devices don’thave a thermal fuse and as a consequence neitheran auxiliary contact nor an optical status indicator.

Selecting the correct SPDThe correct selection of an SPD is based on 3factors:

IMAX

This key parameter is determined based on a riskanalysis (see below) that takes into account:- the number of lightning days per year (=keraunic

level),- the geometry of the facility,- the environment directly in the neighbourhood of

the facility,- the way in which the power is distributed,- the value (£) of the equipment to be protected- etc.

UP

Determined by the sensitivity of the equipment to beprotected. As a rule of thumb, the figures of table 2above can be used for this purpose.

Power supplier networkAs already explained above, different earthing-systems require different SPD’s: - Single-pole for IT and TN-C- Multipole for TT and TN-S.Also the voltage and the number of phases of thepower supply have an influence on the selection ofthe SPD.

Determination of IMAX

Step 1: Facility exposure analysis- The more lightning strikes per year, the higher the

risk of the building being hit:Figure 14 shows the map of the world withisokeraunics superimposed on it. (Isokeraunic =line of same number of lightning days per year).For each area, a more accurate map should beavailable at the Metreologic Institute of thecountry.Locate the area of the facility and read thekeraunic level.

Keraunic level above 80 (High risk) 4Keraunic level between 30 and 80 (Medium risk) 2Keraunic level below 30 (Low risk) 1

- The higher the building or the bigger its ground-surface, the higher the risk of the building beinghit with a lightning-strike:

Multi-story building 4Single story with roof <10m 2Single story building 1

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T4.51

Surge arresters

fig.14

Ground surface more than 4500 m2 4Ground surface from 2000 to 4500 m2 2Ground surface less than 2000 m2 1

- The higher the density of the buildings in the area,the lower the risk of your building being hit with alightning strike:

Rural 4Suburb 2Downtown 1

- An overhead power supply has a higher risk of being hitby a lightning strike than an underground supply:

Overhead direct service drop 4Overhead to facility then underground 3Underground service from utility substation 2Metropolitan service grid 1

- Also, the further the infrastructure is away from thenearest substation, the longer the power supplycables and thus the higher the risk:

600m to 3km from facility 4300 m to 600m from facility 2Less that 300 meters from facility 1

Facility Exposure Risk Level (FER-level)Determine the facility exposure risk factor by addingthe above scores and looking up the facilityexposure risk level in the table below.

If the total (sum of above) is FER-levelLess or equal to 11 LOWBetween 12 and 18 MEDIUMAbove or equal to 19 HIGH

Step 2: Function and value analysis- Critical facilities like hospitals, air-traffic control

centres, etc. cannot afford to be out of operationby losing expensive (sensitive) electronicequipment:

Mission critical / 24 hours critical 4Critical / 8 hours critical 2Non - critical / 8 hours commercial 1

Large concentration of sensitive equipment 4Sensitive equipment only in certain areas 2Very limited presence of sensitive equipment 1

- The higher the cost of the equipment to protect,the better it should be protected:

Above $ 100k 4$ 100k to $ 30k 3$ 30k to $ 10k 2Less than $ 10k 1

- Historical Data

Past history of power problems with damage 4Past history of power problems without damage 2No past history of power problems 1

Facility Function and Value Factor (FF&V-factor)Determine your facility function and value factor byadding the above scores and looking up the facilityfunction and value level in the table below

If the total (sum of above) is FF&V-factorLess or equal to 6 3Between 7 and 11 2Above or equal to 12 1

Redline

Installation guidelinesAlthough the installation of an SPD is relatively easyand can be done very fast, correct installation is vital.Not just for the obvious reasons of electrical safetybut also because a poor installation technique cansignificantly reduce the effectiveness of the SPD.Below some installation guidelines are summarisedin order to assure the best possible protectionagainst over-voltage surges you can achieve byapplying SurgerGuard SPD’s.

Install a high quality ground (PE) and avoidground-loopsProper grounding and bonding is important to achievea source of equal potential, ensuring that electronicequipment is not exposed to differing groundpotentials that would introduce ground loop currents.A high impedance towards ground introduces anadditional voltage drop in series with the residualvoltage of the SPD (fig.15), so the lower thisimpedance towards ground, the lower the totalresidual voltage across the load to be protected.Bonding was not a concern in past years because

computers, and all other devices, werepredominantly stand-alone devices and the groundconnection was simply a safety measure for thatsingle device. However, in recent years we havebegun interconnecting various devices via data andsignal cables. Now, with each device having aseparate ground connection, currents begin to flowbetween these various ground connectionsincreasing the possibility of equipment damage.Figure 16 overleaf shows correct bonded groundinterconnection between PE, SPD and theequipment to be protected.

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HIGH

MEDIUM

LOW

2.5kVSG SP 2 20 2SG SP 2 45 2SG SP 2 65 2SG SP 2 20 4SG SP 2 45 4SG SP 2 65 4

UN

230V230V 230V 400V400V 400V

1kVSG SP 2 20 2SG SP 2 45 2

(1)

(1)

(1)

(1)

1.8kVSG MM 2 20 2SG MM 2 45 2

SG MM 2 20 4SG MM 2 45 4SG MM 2 80 4

Level 3Level 2Level 1Level 3Level 2Level 1Level 3Level 2Level 1

MAIN PANEL45kA65kA65kA (1)

45kA45kA45kA20kA20kA20kA

SUBPANEL--

20kA--

20kA---

MAIN PANEL45kA (1)

65kA (1)

65kA (1)

45kA80kA65kA (1)

45kA45kA45kA

SUBPANEL20kA20kA45kA20kA20kA45kA20kA20kA20kA

MAIN PANEL45kA65kA65kA (1)

45kA65kA65kA (1)

20kA20kA45kA

SUBPANEL20kA20kA45kA20kA20kA20kA

-20kA20kA

(1) Due to high protection needs, the Class 2 SPD needs to be installed together with the Class 1 for the positions marked with "(1)". (2) If a lightning rod is installed on a building in Your facility or on a building in a radius of 5km around Your facility, or if some high towers,

antennas or trees are in that same radius, we advise to install minimum a 65kA SPD.

(1) If the protection level cannot be reached by using only one SPD, appropriate cascading is necessary. Example: To protect computer equipment in a facility with a highFER and a level 1 FF&V and with an IT or TN-C earthing system, according to table 5 a 65kA SPD with a UP=1kV is required but not available. Therefore cascading aSurgeGuard SP 2 65 2 upfront of a SurgeGuard SP 2 20 2 downstream, with a SurgeGuard C40 in between if required would be the best solution.

Table 5FACILITY LEVELS INSTALLATION POINT

FER FF&V Domestic TertiaryIndustrial

fig.15

Step 3: Lookup I MAX

Based on the Facility Exposure Risk level (FER) andthe Facility Function and Value factor (FF&V), table 5advises the value of IMAX of the SPD or SPD’s to beinstalled.

Determination of the SurgeGuard typeThe IMAX-value found above, together with theoperating voltage, the protection voltage and the kindof earthing system, determines the correct Surge-Guard type (Table 6).

IMAX/UP

20kA45kA65kA20kA45kA65kA

Network

1.8kVSG SP 2 20 2SG SP 2 45 2SG SP 2 65 2SG SP 2 20 4

(1)

(1)

IT or TN-C single pole SPD

2.5kVSG MM 2 20 2SG MM 2 45 2

SG MM 2 20 4SG MM 2 45 4SG MM 2 80 4

1kVSG MM 2 20 2SG MM 2 45 2

SG MM 2 20 4SG MM 2 45 4

(1)

TT or TN-S multipole SPD

Table 6

T4

Keep the lead length shortAs the let-through or residual voltage of a SPD isthe primary measurement of a protectors’effectiveness, special care needs to be taken whenhooking up the device. Indeed, the let-throughvoltage is directly affected by the impedance of theconnecting leads, thus by their length and crosssection (see fig.17). Obviously, the performance ofthe entire circuit decreases as this impedanceincreases.

Increasing the conductor size will help to reduce theimpedance. However, as at high frequencies theinductance is more important than the resistance,reducing the wire length (thus reducing theinductance) will have a much bigger impact thanincreasing the cross section (= reducing theresistance).Also, increasing the cross section implies increasingthe installation cost, while reducing the lengthimplies reducing the installation cost.

T4.53

Surge arresters

Use Kelvin connectionsWherever possible, ordinary parallel connections asshown in figure 17 should be avoided and Kelvinconnections as shown in figure 18 should beapplied. This way of connecting virtually reducesthe additional voltage-drop in the connecting wiresto zero, obtaining the best UP possible.

Theoretically, since the terminals of the SurgeGuarddevices have a maximum capacity of 1x50mm2 or2x20mm2, Kelvin connection is possible up to 63A. However, due to the excessive heating of theterminal at higher currents, we advise not to useKelvin connections above 50A.

Install the SPD as close as possible to the up-stream circuit breakerAgain in order to reduce the additional volt drop asmuch as possible in the interconnecting wiring,keep the length (L) of those wires as shortas possible (fig.19).

Install the SPD as close as possible to theequipment to be protected

fig.16

fig.17

fig.18

fig.19

fig.20

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Avoid installing an SPD downstream of asensitive RCDAn MOV-based SPD always has a leakage currenttowards earth. Normally, this leakage current is inthe µA-range and therefore negligible, but for a lotof SPD’s on the market, (i.e. the multipoleSurgeGuard devices), the optical indicator is a LEDwhich also leaks current to ground. Unfortunately,the intensity of the multipole device is several mA’s.As a result, installing an SPD downstream of aresidual current device (RCD) could lead to nuisancetripping of the RCD. This doesn’t influence thecorrect operation of the SPD, but indeed interruptsthe service continuity.We advise not to install a multipole SurgeGuardSPD downstream of an RCD with a sensitivity ofless than 30mA.

Bound wires togetherIn addition to keeping the lines short, wherepossible tightly bind the lives and neutral togetherover as much of their length as possible, usingcable ties, adhesive tape, or spiral wrap. This is avery effective way to cancel out inductance.

Avoid sharp bending and winding-up ofconductorsBesides keeping the interconnecting wires as shortas possible, we also advise not to bend thoseinterconnecting wires in a sharp way, but insteadapply smooth bendings.Never coil up interconnecting wires.Both coiling and sharp bending increase theinductance of the wire drastically.

Follow rigorously the product specific installationprocedureAs each SurgeGuard device comes with a detailedinstruction sheet, please read and follow theseguidelines step by step during the installation of theSPD.

Regulations and standardsSurgeGuard SPD’s are all designed according to thefollowing standards (latest version unless indicatedotherwise):- IEC 61643-1, IEC1643-1- EN 61024-1, EN/IEC 61000-4-4, EN/IEC 61000-4-5- UL1449-2- VDE 0110-1, VDE 0185 part 100, VDE 0185-103,

VDE 0675-6 (A1 & A2), VDE 0100-534/A1- BS 6651 (1992)- AS 1768 (1991)- ANSI C62.41

Text for specifiers- In TT- and TN-S-systems only multipole SPD’s are

used while in IT- and TN-C systems only single-pole SPD’s are used.

- In IT- and TN-S-systems, one SPD is usedbetween each live-conductor and PE.

- The single-pole SPD’s are all keyed plug-in deviceswhile the multipole devices are all mono-block.

- All SPD’s have a terminal capacity of 1x50mm2 or2x20mm2; the Pozidriv terminals are captive.

- The SPD’s can be interconnected with MCB’sby means of a pin- or fork-type busbar.

- All SPD’s have an optical fault indicator.- A complete range is available: Class 1, Class 2

and decoupling inductors.- Devices with a built-in voltage-free auxiliary

contact for remote indication are available.- All MOV-based SPD’s must have a built-in thermal

fuse.- The power-supply voltage is allowed to vary in the

range of 110% Un... 85% Un without damagingthe SPD.

ApplicationUsed in areas where the exposure to lightning is very high, two SPD must beinstalled, one of them, with high I max (Iimp Class I) and high Up and thesecond one with low Imax and low Up. If a Class I and Class II SPD areinstalled at 10 meters distance from each other, no decoupling coil isrequired. Decoupling coil is required if both products are installed in thesame panel or with distances lower than 10m.

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Surge arresters

T4

Technical data - Class I

Tested to (Standards)Nominal currentNominal inductanceNominal voltage

Max. back-up fuseShort-circuit withstand capability with max. back-up fuseDC resistanceOperating temperature rangeNumber of modulesRef. no.

IEC 8540 A

15 uH220-240 -

380-415Vac35A gL50kA

3 mOhm-35°...+70°

2666532

Decoupling element

Ref. no. Surge arrester

Tested toDesigned according to

Class (CEI-IEC 61643-1/E DIN VDE 0675 part 6/A1)Un/frequencyRated voltage (maximum continuous operating voltage) UcIsn (8/20)I max (8/20)Up at Isn (kV)Response time taMax. back-up fuse / MCB Operating temperature rangeShort-circuit withstand capability with max. back-up fuseNumber of modules

Additional data for SG MM....CType of contactCross sectional areas of remote alarm terminalsRef. no.

666549666541

IEC 61643-1

II/C

270V 2065

< 1.225ns

50A / B or C-30°...+75°

50kA1

Dry contact>1.5 mm2

666542

666546666535

IEC 61643-1

II/C

480V520

< 1.5825ns

20A / B or C-30°...+75°

25kA1

Dry contact>1.5 mm2

-------

666548666538

IEC 61643-1

II/C

480V 1045

< 1.4525ns

35A / B or C-30°...+75°

25kA1

Dry contact>1.5 mm2

666539

666551666543

IEC 61643-1

II/C

480V 2065

<1.9525ns

50A / B or C-30°...+75°

25kA1

Dry contact>1.5 mm2

666544

666545666534

IEC 61643-1

II/C

270V520

< 0.9625ns

20A / B or C-30°...+75°

50kA1

Dry contact>1.5 mm2

--------

666547666536

IEC 61643-1

II/C

270V1045< 1

25ns35A / B or C-30°...+75°

50kA1

Dry contact>1.5 mm2

666537

666552-----

IEC 61643-1

II/C230Vac / 50-60Hz

270 V2040

<1.5100 ns

-30° ....+75°

1

Not applicableNot applicable

------

Plug-in devices (MOV technology & Gas technology for N-Earth device)N-PE Surge arrester

IEC 61643-1; EN/IEC 61024-1; EN/IEC 61000-4-4; EN/IEC 61000-4-5;UL1449-2; VDE 0110-1; VDE 0185 part

100; VDE 0100-534/A1; BS 6651 (1992);AS 1768 (1991); ANSI C62.41

IEC 61643-1;EN 61024-1; EN/IEC 61000-4-4;EN 61000-4-5; UL1449-2; VDE 0110-1; VDE 0185 part 100; VDE 0100-534/A1; BS 6651 (1992);

AS 1768 (1991); ANSI C62.41

220-240Vac / 50-60Hz 220-240Vac / 50-60Hz

TT systems (1+1 or 3+1 system)

NEW

L1TT

PE

L2 L3 N

VBAB3 (560186)DK(544295)

VBABNPE (544331)

L1TN-S

PE

L2 L3 N

VBAB3 (560186)VBAB1 (560186)

SPD withHigh I max (Iimp)High up

SPD withLow I maxLowup

L

666532

N

Plug-indevices

N

Ph

666552

N

T4.56

Com

fort

Fun

ctio

ns

T4

Redline


ClassUn (L-L) / frequencyRated voltage (maximum continuous operating voltage) UcIn (8/20)I max (8/20)Up at InResponse time taBack-up fuse or MCB Short-circuit withstand capability with max. back-up fuseNumber of modules

IEC 61643-1

II/C220-240Vac/50-60Hz

270V10 kA45 kA1kV25ns

30A /B or C50kA

2

IEC 61643-1

II/C220-240Vac/50-60Hz

270V10 kA45 kA1kV25ns

30A /B or C50kA

2

Surge arrester SG MM 2 45 2 (666527)TN-S TT

IEC 61643-1; EN/IEC 61024-1; EN/IEC 61000-4-4;EN 61000-4-5; UL1449-2; VDE 0110-1; VDE 0185 part 100; VDE 0100-534/A1; BS 6651 (1992);

AS 1768 (1991); ANSI C62.41


ClassUn (L-L) / frequencyRated voltage (maximum continuous operating voltage) UcIn (8/20)I max (8/20)Up at InResponse time taBack-up fuse or MCB Short-circuit withstand capability with max. back-up fuseNumber of modules

IEC 61643-1

II/C380-415Vac/50-60Hz

270 V10 kA45 kA1kV25ns

30A /B or C25kA

5

IEC 61643-1

II/C380-415Vac/50-60Hz


30A /B or C25kA

5



AS 1768 (1991); ANSI C62.41

NEW

NEW

Technical data - Class II


ClassUn/frequencyRated voltage (maximum continuous operating voltage) UcIn (8/20)I max (8/20)Up at InResponse time taBack-up fuse or MCB Short-circuit withstand capability with max. back-up fuseNumber of modules

IEC 61643-1

II/C220-240Vac/50-60Hz

270 V5 kA20 kA

<0.96 kV25ns

20A /B or C50kA

2

IEC 61643-1

II/C220-240Vac/50-60Hz

270 V5 kA20 kA

<0.96 kV25ns

20A /B or C50kA

2



AS 1768 (1991); ANSI C62.41

NEW


ClassUn/frequencyRated voltage (maximum continuous operating voltage) UcIn (8/20)I max (8/20)Up at InResponse time taBack-up fuse or MCB Short-circuit withstand capability with max. back-up fuseNumber of modules

IEC 61643-1

II/C380-415Vac/50-60Hz

270 V 5 kA20 kA

0.96 kV25ns

20A /B or C25kA

5

IEC 61643-1

II/C380-415Vac/50-60Hz

270 V 5 kA20 kA

0.96 kV25ns

20A /B or C25kA

5



AS 1768 (1991); ANSI C62.41

NEW

T4.57

Surge arresters

T4


ClassUn (L-L) / frequencyRated voltage (maximum continuous operating voltage) UcIn (8/20)I max (8/20)Up at InResponse time taBack-up fuse or MCB Short-circuit withstand capability with max. back-up fuseNumber of modulesAdditional data for SG MM....CType of contactCross sectional areas of remote alarm terminals

IEC 61643-1

II/C380-415Vac/50-60Hz


30A /B or C25kA

5

Dry contact<1.5 mm2

IEC 61643-1

II/C380-415Vac/50-60Hz


30A /B or C25kA

5

Dry contact<1.5 mm2

Surge arrester SG MM 2 45 4 C (666530)TN-S TT


AS 1768 (1991); ANSI C62.41


ClassUn (L-L) / frequencyRated voltage (maximum continuous operating voltage) UcIn (8/20)I max (8/20)Up at InResponse time taBack-up fuse or MCB Short-circuit withstand capability with max. back-up fuseNumber of modulesAdditional data for SG MM....CType of contactCross sectional areas of remote alarm terminals

IEC 61643-1

II/C380-415Vac/50-60Hz

270 V20 kA80 kA1.2 kV25ns

50A /B or C25kA

5

Dry contact<1.5 mm2

IEC 61643-1

II/C380-415Vac/50-60Hz

270 V20 kA80 kA1.2 kV25ns

50A /B or C25kA

5

Dry contact<1.5 mm2

Surge arrester SG MM 2 80 4 C (666533)TN-S TT


AS 1768 (1991); ANSI C62.41

NEW

NEW

CapacityStandardsSymetric attenuationUnUmaxOperating temperature rangeNumber of modulesRef. no.

1.5 uFEN132400

40230275

-30°... +75°1

666524

Cx

dBVV°C

Filter

T4.58

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fort

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ctio

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T4

Redline

Mains disconnect switches - Aster

Switches - Aster

Rotary switches - Aster

Push-buttons - Aster

Switches with signal lamp - Aster

Indication lamp - Aster

T4.59

Dim

ensional drawings

T4

Socket-outlet - Series MSC

Contactors - Contax

Contactors Day and Night - Contax

Contactors - Auxiliary contact Contactors - Spacer

T4.60

Com

fort

Fun

ctio

ns

T4

Redline

left mounting right mounting

Relays - Contax R

Relays - Auxiliary contact

Impulse switches 2P - Pulsar S

Impulse switches 1P - Pulsar S

Electromechanical step-by-step - Pulsar S

Impulse switches - Add-on module for electromechanical switches

T4.61

Dim

ensional drawings

T4

Analogue time switches 1 module - Classic

Analogue time switches 3 & 6 modules - Classic

Digital time switches 1 module - Galax

Impulse switches - Spacer Staircase switches/Time relays - Pulsar T/TS

T4.62

Com

fort

Fun

ctio

ns

T4

Redline

Digital time switches 2 & 6 modules - Galax

Light sensitive switch 1 module - Galax LSS Light sensitive switches 3 mod. - Galax LSS

Light sensitive switch with digital clock - Galax LSS

Light sensitive switch photocell incorporated Light sensitive switches - Photocell

T4.63

Dim

ensional drawings

T4

Buzzers and bells - 1 module Buzzers and bells - 2 modules

Analogue measurement instruments - Series MT

Bell transformers - Series T

Safety transformers - Series T

T4.64

Com

fort

Fun

ctio

ns

T4

Redline

Digital measurement instruments - Series MT

Energy meter - Series MT

Network analyser - Series MT

Signal converter - Series MT Selector switch - Series MT

T4.65

Dim

ensional drawings

T4

CPU Expansion module

Current transformer - Series MT

ElfaLogic

40 up to 80A 100 up to 400A

500 and 600A 800 and 1000A

T4.66

Com

fort

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ctio

ns

T4

Redline

Surge arresters - SurgeGuard

Decoupling coil - SurgeGuard

Surge arresters - SurgeGuard

Sine wave tracker - SurgeGuard

Class 1

Surge arresters - SurgeGuardClass 2 - Single pole plug-in

Class 2 - Multipole monobloc

Priority relay - Series PR

3290

7

Power Protection (former GE Power Controls), a division of GE Consumer & Industrial, is a fi rst class European supplier of low-voltage products including wiring devices, residential and industrial electrical distribution components, automation products, enclosures and switchboards. Demand for the company’s products comes from wholesalers, installers, panel-board builders, contractors, OEMs and utilities worldwide

www.gepowercontrols.com

GE POWER CONTROLS International Sales Nieuwevaart 51B-9000 Gent - BelgiumTel. +32/9 265 21 11Fax +32/9 265 28 90E-mail: [email protected]

GE Consumer & IndustrialPower Protection

680803Ref. R/2236/E/X 15.0 Ed. 01/05

© Copyright GE Power Controls 2005

GE imagination at work

Documents

Technical Catalogue Redline