NW User Manual

MASTERPACT NW08-63Low Voltage Products

User manual

We do more with electricity.

Masterpact NW08-63 Schneider Electric1

Discovering Masterpact 2Using Masterpact 8Understanding the controls and indications 8Charging the circuit breaker 9Closing the circuit breaker 10Opening the circuit breaker 11Resetting after a fault trip 12Locking the controls 13

Using the Masterpact drawout chassis 16Identifying the circuit breaker positions 16Racking 17Matching a Masterpact circuit breaker with its chassis 19Locking the switchboard door 20Locking the circuit breaker in position 21Locking the safety shutters 24

Identifying the electrical auxiliaries 26Identification of the connection terminals 26Electrical diagrams 27Operation 29

Discovering Masterpact's accessories 30Micrologic control units 30Indication contacts 31Auxiliaries for remote operation 33Device mechanical accessories 35Chassis mechanical accessories 37

Inspecting and testing before use 40Initial test 40What to do when the circuit breaker trips 41

Maintaining Masterpact performance 42Recommended maintenance program 42Maintenance operations 43Ordering replacement parts 45Troubleshooting and solutions 46

Checking Masterpact operating conditions 48

User manual for circuit breakersMasterpact NW08-63


Discovering Masterpact

The Masterpact NW range of circuit breakers and switch-disconnectorsoffer current ratings from 800 A to 6300 A.Five different performance levels are available:c N1: standard with total discriminationc H1: high performance with total discriminationc H2: a compromise between current limiting and discriminationc H3: high breaking capacity and discrimination, without current limitingc L1: high level of current limiting, with some discrimination.

Rating plate

E60

350A

Ui 1000V

Ics = 100% Icu

220/440 42480/690 42

Icw 42kA/1s cat.B

UTE VDE BS CEI UNE AS NEMAIEC 60947-2 50/60Hz

Ue Icu(V) (kA)

Masterpact

Uimp 12kV

NW08 N1

Rated current x 100 A

Suitability for isolation

Performance level

Rated insulation level

Rated short-time withstand current

Rated operational voltage

Ultimate breaking capacityImpulse withstand voltage

Ics: rated service breaking capacityIcu: ultimate breaking capacity

Type of device:circuit breaker or switch-disconnector

Frequency

Standards

E51

288A

E60

036A

Icu kA at 415 VIcs = 100% Icu150

100

65

42

L1 H3H2

H1

N1

160012001000800 2000 2500 3200 4000 5000 6300

E46

004A

masterpact II

MERLIN GERIN

NX 08 HA10

Ui 1000V Uimp 12kV

Ue690

(V)

50kA/1s

IEC 947-2

50/60Hz

EN 60947-2

UTE VDE BS CEI UNE AS NBMA




Masterpact circuit breakers are available in drawout and fixed versions.The drawout version is mounted on a chassis and the fixed version is installedusing fixing brackets

Drawout version

Fixed version

E51

205C

E51

289C


Chassis

E60

037A

Carrying grip

Drawout grip

"Connected", "test" or "disconnected"position indicator

Locking by keylocks

Safety shutters

Shutter position indication and locking

Crank storage

Locking by padlocks

Door interlock Crank

Arc-chute cover

Disconnecting-contact cluster

Crank socketPosition release button

Carriage switch terminals

Auxiliary terminal shield

Racking interlock

Mismatchprotection

Shutterlockingblocks

Carriageswitchterminals

Carriage switchterminals

Control-unitcontact terminals

Controlauxiliaryterminals

ON/OFFindicationcontactterminals


Circuit breaker / switch-disconnector

E60

038A

MCH gear motor forelectrical charging ofthe operating mechanism

Operating-mechanismcharging handle

PF "ready to close"contact

SDE/2 "fault-trip"indication contactor Res electricalremote reset

Terminal block forthe control unit andthe SDE contact(s)

MX/2 opening release orMN undervoltage release

XF closing release

MX/1 opening release

Closing pushbutton

Opening pushbutton

Operation counter

Carrying grip

SDE/1 "fault-trip"indication contact

Arc chute

Block of 4 OF "ON/OFF"indication contacts

Terminal block forthe control auxiliaries

2 Blocks of 4 additional OF"ON/OFF" contacts or EF combined"connected/closed" contacts

Keylocking kit

Locking by padlocks

BPFE electrical closing pushbutton

Control unit

Terminal block for the ON/OFFindication contacts



Front

E60

039A

RESET

Indicator for positionof the main contacts

"Springs charged"and "Ready to close"indicator

Locking by padlockor lead-seal coverfor pushbuttons

Rating plate

Trip indication buttonused to reset before closing


Using Masterpact Understanding the controlsand indications

Circuit breaker openand discharged

Circuit breaker closedand discharged

Circuit breaker open,charged and not "ready toclose"

Circuit breaker closed,charged and not "ready toclose"

Circuit breaker open, chargedand "ready to close"

E51

320B

Push OFFO

IPush ON

Push OFFO

IPush ON

Push OFFO

IPush ON

Push OFFO

IPush ON

E51

207A

E51

210A

E51

206A

E51

211

E51

209A

Push OFFO

IPush ON

Test

RESET


The charge status is indicated as follows. The springs in the circuit breaker operating mechanism must be charged to storethe energy required to close the main contacts. The springs may be chargedmanually using the charging handle or the optional MCH gear motor.

Manual charging:Pull the handle downsix times until you heara "clack".

Automatic charging:If the MCH gear motor isinstalled, the spring isautomatically rechargedafter each closing.

Test

E60

370A

E51

213A

E51

290A

Charging the circuit breaker

Push OFFO

IPush ON

or


Using Masterpact Closing the circuit breaker

Locally (electrical)

Closing conditionsClosing (i.e. turning the circuit ON) is possible only if the circuit breaker is"ready to close".The prerequisites are the following:c device open (OFF)c springs chargedc no opening order present.

If the circuit breaker is not "ready to close" when the order is given, stop the orderand start again when the circuit breaker is "ready to close".

Closing the circuit breaker

Locally (mechanical)Press the mechanical ON pushbutton.

Remotely

Enabling or disabling the anti-pumping functionThe purpose of the mechanical anti-pumping function is to ensure that a circuitbreaker receiving simultaneous opening and closing orders does not open andclose indefinitely.If there is a continuous closing order, after opening the circuit breaker remainsopen until the closing order is discontinued. A new closing order then closes thecircuit breaker. This function can be disabled by wiring the closing release in serieswith the PF "ready to close" contact.

Press the electrical closingpushbutton. By adding anXF closing release, thecircuit breaker can be closedremotely.

BPFE XF

When connected to a remote control panel, the XFclosing release (0.85 to 1.1 Un) can be used to closethe circuit breaker remotely.

XF

Push OFFO

Pus

E51

291A

E51

292A

E51

216A

E51

214A

E51

215A

E51

293A

E51

294A

E51

294A

Device not "ready to close"

Device "ready to close"


Opening the circuit breaker

LocallyPress the OFF pushbutton.

RemotelyUse one of the following solutions:c one or two MX opening releases (MX1 and MX2, 0.7 to 1.1 Un)c one MN undervoltage release (0.35 to 0.7 Un)c one MN undervoltage release (0.35 to 0.7 Un) with a delay unit (R or Rr).

When connected to a remote control panel, these releases can be used to openthe circuit breaker remotely.

E51

216A

E51

293A

E51

294

E51

296A

E51

217A

3 6

MNUVR

1012

100/130 V

AC/DC

S

0.5 1

3 1.5

Retardateur de MN

Time delay for UVR

4 5 6

1 2 3

1 2 3

Push

IPush ON

MX1, MX2, MN Delay unit


Using Masterpact

The circuit breaker signals a fault by:c a mechanical indicator on the front panelc one or two SDE "fault-trip" indication contacts (SDE/2 is optional).

LocallyIf the circuit breaker is not equipped with the automatic reset option,reset it manually.

Resetting after a fault trip

RemotelyUse the Res electrical remote reset option (not compatible with an SDE/2).

E51

216A

E51

297B

E51

293A

E51

298B

RESET


Locking the controlsDisabling circuit-breakerlocal closing and opening

Pushbutton locking using a padlock(shackle diameter 5 to 8 mm), a lead seal or screws.

E51

283A

UnlockingRemove the padlock,lead seal or screws.

E51

300B

E51

301B

E51

302B

E51

303B

Padlock Lead seal

LockingClose the covers. Insert the padlock

shackle, lead sealor screws.

E51

303B

E51

304B

E51

305B

Lift the covers and swingthem down.

The pushbuttonsare no longer locked.

Test

Push OFF

O IPush ON

Push OFF

O IPush ON

E51

337A

Screws


Using Masterpact Locking the controlsDisabling local and remote closing

E51

217A

CheckThe controls are inoperative.

UnlockingRemove the padlock.

E51

306A

E51

307A

Pull out the tab. Insert the padlockshackle.

E51

218A

E51

308A

Push

IPush ON

Push

IPush ON

Push OFFO

Pus

Combination of locking systemsTo disable circuit-breaker closing using the pushbuttons or remotely,use as needed:c a padlockc one or two keylocksc a combination of the two locking systems.

Install a padlock (maximum shackle diameter 5 to 8 mm)

LockingOpen the circuit breaker.


CheckThe controls are inoperative.

E51

218A

Push

IPush ON

Push OFFO

Pus

UnlockingInsert the key(s).

Four types of keylocks are available.

E51

271A

E51

312A

E51

313A

E51

319A

E51

269A

Turn the key(s). The key(s) cannot beremoved.

RONIS PROFALUX CASTELL

E51

272A

KIRK

Locking the controls with one or two keylocks

LockingOpen the circuit breaker.

E51

217A

E51

310A

E51

311A

Turn the key(s). Remove the key(s).

Push

IPush ON

E51

270A


Using the Masterpactdrawout chassis

Identifying the circuit breakerpositions

c "connected" position

E51

222A

The indicator on the front signals the position of the circuit breaker in the chassis.

E51

219A

c "test" position

E51

220A

E51

314A

c "disconnected" position

E51

221A

E51

316A

E51

315A

Test

Test

Test

Test

26 mm

Test


Racking

PrerequisitesTo connect and disconnect Masterpact, the crank must be used. The lockingsystems, padlocks and the racking interlock all inhibit use of the crank.

Withdrawing the circuit breaker from the "connected"to "test" position, then to "disconnected" position

Removing the rails

The circuit breaker is in "connected" position. The circuit breaker is in"test" position.

E51

223B

The circuit breaker is in "test" position.Remove the crank or continue to"disconnected" position.

The circuit breaker is in"disconnected" position.

Press the release tabsand pull the rails out.

To put the rails back in, press therelease tabs and push the rails in.

E51

226B

E51

224B

Test

Test

1

Test

Test

2

Test

Test

3

Test

56

4

Test

2

1

Test

3

These operations require that all chassis-locking functions be disabled(see page 21).

Caution. The right-hand rail cannot beremoved if the crank has not been removedor if the circuit breaker is not fullydisconnected.


Position the circuit breaker on the rails.Check that it rests on all four supports.

E51

227A

Open the circuit breaker(in any case, it opensautomatically duringconnection).

E51

217A

Push the circuit breaker into the chassis, taking care not to push on the control unit.

E51

230B

For complete information on Masterpacthandling and mounting, see the installationmanual(s).

Before mounting the circuit breaker,make sure it matches the chassis.

Racking the circuit breaker from the "disconnected" to "test"position, then to "connected" positionThe device is in"disconnected" position

The device is in "test"position.

12

Test

Test

56

Test Test

TestTest

Test

3 4


Test

Push

IPush ON

Racking

Inserting Masterpact

The device is in "test" position.Remove the crank or continueto "connected" position.

The device is in"connected" position.

If you cannot insert the circuit breakerin the chassis, check that the mismatchprotection on the chassis correspondsto that on the circuit breaker.

E51

228B


Matching a Masterpactcircuit breaker with its chassis

To set up a mismatch-preventioncombination for the circuit breaker andthe chassis, see the mismatch-preventioninstallation manual.

E51

317B

The mismatch protection ensures that a circuit breaker is installed only in a chassiswith compatible characteristics.

The possible combinations are listed below.

A B C DA B C EA B C FA B C GA B D EA B D FA B D GA B E FA B E GA B F GA C D EA C D FA C D GA C E FA C E GA C F GA D E FA D E GA D F GA E F G

B C D EB C D FB C D GB C E FB C E GB D E FB D E GB D F GC D E FC D E GC E F GD E F G

5 6 74 6 74 5 74 5 63 6 73 5 73 5 63 4 73 4 63 4 52 6 72 5 72 5 62 4 72 4 62 4 52 3 72 3 62 3 52 3 4

1 6 71 5 71 4 71 4 61 3 71 3 61 3 51 3 41 2 71 2 61 2 41 2 3

12

34

65

7

AB

CD

FE

G


Locking the switchboard door

Disabling door opening

E51

234A

Enabling door opening

Put the Masterpact in"disconnected" position.

E51

236A

The door is unlocked.

The locking device is installed on the left or right-hand side of the chassis:c when the circuit breaker is in "connected" or "test" position, the latch is loweredand the door is lockedc when the circuit breaker is in "disconnected" position, the latch is raisedand the door is unlocked.

E51

231B

E51

232A

E51

235A

E51

233A

Put the Masterpact in"test" or "connected"position.

The door is locked.

Test

Test

Test


Close the door.


Locking the circuit breakerin position

Circuit breaker in "disconnected"position.

E51

237A

Pull out the tab.

E51

239A

E51

238A

Insert the shackle (max. diameter5 to 8 mm) of the padlock(s).

E51

243B

E51

240A

Padlocks and keylocksmay be used together.

Unlocking.

Release the tab.

The crank can be inserted.

The crank cannot be inserted.

E51

241A

E51

242A

Test

Test

Test

OK

Test

Test

Test

Test

Combination of locking systemsTo disable local or remote opening or closing of the circuit breaker, use as needed:c one to three padlocksc one or two keylocksc a combination of the two locking systems.

Disabling connection when the circuit breaker is in"disconnected" position, using one to three padlocks(maximum shackle diameter 5 to 8 mm)

Locking

Remove the padlock(s).


Test

OK

Test


Unlocking

Four types of keylocks are available

E51

247A

The crank can be inserted.Insert the key(s).

E51

246A

E51

243B

Turn the key(s).

E51

270A

RONIS

E51

269A

PROFALUX

E51

271A

CASTELL

E51

272A

KIRK

Test

Disabling connection when the circuit breaker is in"disconnected" position, using one or two keylocks.

Remove the key(s). The crank cannot be inserted.

E51

245A

E51

240A

Test

Locking the circuit breakerin position

Padlocks and keylocks may be used together.

E51

237A

LockingCircuit breaker in "disconnected"position.

E51

244A

Turn the key(s).

Test

Test

Test


Set the circuit breaker to "disconnected"position. Remove the circuit breakerfrom the chassis.

E51

237A

Insert the crank.

E51

318B

E51

248A

Turn the catch to the left. The circuit breaker can now be locked in all positions.

E51

251A

For this operation, the circuit breakermust be removed from the chassis.

Locking the circuit breaker when the door is open

When the door is open, the crank cannotbe inserted.

E51

285A

When the door is closed, the crankcan be inserted.

It is possible to modify the padlock and keylock locking function. Instead of lockingonly in "disconnected" position, it is possible to lock the circuit breaker in allpositions.

.

E51

250A

Test

Test

Test

Test

Test

Test

All-positionlocking

Locking in"disconnected" position

rear view

Test

Disabling use of the crank in all positions



Locking the safety shuttersPadlocking inside the chassis

Using the shutter locking blocks

Four locking possibilities

E51

338A

Remove the block(s) fromtheir storage position.

E51

339A

Position the block(s) on the guide(s).

E51

340A

Lock the block(s) using a padlock.

E51

341A

E51

343A

Top and bottom shuttersnot locked.

Top shutter locked,Bottom shutter not locked.

Top shutter not locked,Bottom shutter locked.

Top and bottom shutterslocked.

1

2

3Ø5 ➞ Ø8


E60

042A

E51

252A

E51

254A

Pull out the left-hand tab to lockthe top shutter.

E51

255A

This system offers two functions:c padlocking of the top or bottom shuttersc indication of the position of each shutter:v shutter openv shutter closed.

Locking

Pull out the right-hand tabto lock the bottom shutter.

Padlocking or position indication onthe front

Insert a padlock(shackle 5 to 8 mm).

E51

253A

Unlocking


E51

257A

Remove the padlock. Release the tab(s).

E51

256A

Test

Test

Test Test

TestTest

E51

345A

E51

346A

Test

Test

Pull out both tabsto lock both shutters.


Test

Test

Test

Test

Test

Top shutter closed.Bottom shutter open.

Top shutter open.Bottom shutter closed.

Top and bottomshutters open.

Top and bottomshutters closed.


Identifying the electricalauxiliaries

Identification of the connectionterminalsLayout of terminal blocks

E60

352A

Com UC1 UC2 UC3 UC4 M2C/M6C SDE1E5E3E1

E6E4E2

Z5Z3Z1

M1Z4Z2

M2T3T1

M3T4T2

F2 +VNF1 -

V3V2V1

484/Q3474/Q2471/Q1

184/K2182181/K1

848281

MN/MX2D2/C12

/C13D1/C11

MX1C2C3C1

XFA2A3A1

PF254252251

MCHB2B3B1

OF24244242241

OF23234232231

OF22224222221

OF21214212211

OF14144142141

OF13134132131

OF12124122121

OF11114112111

OF4444241

OF3343231

OF3343231

OF2242221

OF11412

CE3334

332331

CE2324

322321

CE1314

312311

ComUC1

UC2UC3

UC4M2C

/M6C

SDE1

E5E3

E1

E6E4

E2

Z5Z3

Z1

M1Z4

Z2

M2T3

T1

M3T4

T2F2

+VNF1

-

V3V2

V1484

/ Q3474

/ Q2471

/ Q1

184/ K

2182181

/ K1

8482

81

MN/MX2D2/

C12

/

C13

D1/ C1

1

MX1C2

C3C1

XFA2

A3A1

PF254

252251

MCHB2

B3B1

OF24244

242241

OF23234

232231

OF22224

222221

OF21214

212211

OF14144

142141

OF13134

132131

OF12124

122121

OF11114

112111

OF444

4241

3231

OF334 OF2

2422

21

OF114

1211

CT3934

932931

CT2924

922921

CT1914

912911

CD3834

832831

CD2824

822821

CD1814

812811

EF24248246245

EF23238236235

EF22228226225

EF21218216215

EF14148146145

EF13138136135

EF12128126125

EF11118116115

CE3334332331

CE2324322321

CE1314312311

Com UC1 UC2 UC3 UC4 M2C/M6C SDE1E5E3E1

E6E4E2

Z5Z3Z1

M1Z4Z2

M2T3T1

M3T4T2

F2 +VNF1 -

V3V2V1

484/Q3

474/Q2471/Q1

184/K2182

181/K1

848281

CD3834832831

CD2824822821

CD1814812811

MN/MX2D2/C12

/C13D1/C11

MX1C2C3C1

XFA2A3A1

PF254252251

MCHB2B3B1

OF24244242241

OF23234232231

OF22224222221

OF21214212211

OF14144142141

OF13134132131

OF12124122121

OF11114112111

OF4444241

3231

OF334

OF2242221

OF11412

CT3934932931

CT2924922921

CT1914912911

11

11

or

or or or or or or or or

CE6364362361

CE5354352351

CE4344342341

or

or

CE9394392391

CE8384382381

CE7374372371

CD6864862861

CD5854852851

CD4844842841


Electrical diagramsFixed and drawout devices

The diagram is shown with circuitsde-energised, all devices open, connectedand charged and relays in normal position.

E60

353A

E46

132A

E60

354A

E60

356A

471

S1

474

484

S2

474

Q1

Q2

Q3

M6C

M2C M6Cor

MX1

C2

C3

C1

BPO

A2

A3

A1

BPF

XF

E46

135A

E46

136A

E46

137A

E60

355A

D2

D1

AT

MN MX2

C12

C13

C11

or

A P H

c c c

c c c

c c c

c c cc c c

c c c

c c

c c

c c

c c

/

/

Power

Com : E1-E6 communication

UC1: Z1-Z5 zone selective interlocking;Z1 = ZSI OUT SOURCEZ2 = ZSI OUT; Z3 = ZSI IN SOURCEZ4 = ZSI IN ST (short time)Z5 = ZSI IN GF (earth fault)M1 = Vigi module input (Micrologic 7)

UC2: T1, T2, T3, T4 = external neutral;M2, M3 = Vigi module input(Micrologic 7)

UC3: F2+, F1– external 24 V DCpower supply

VN external voltage connector

UC4: V1, V2, V3 optional externalvoltage protector

M2C: 2 programmable contacts (internal relay);ext. 24 V DC power supply required

or

M6C: 6 programmable contacts(external relay); 24 V DCpower supply required

Control unit

Control unit Remote operation

SDE2: Fault-trip indication contactorRes: Remote reset

SDE1: Fault-trip indication contact (supplied as standard)

MN: Undervoltage releaseorMX2: Shunt release

MX1: Shunt release (standard or communicating)

XF: Closing release (standard or communicating)

PF: "Ready to close" contact

MCH: Gear motor.

Note:When communicating MX or XF releases are used, the third wire(C3, A3) must be connected even if the communications module isnot installed.

A : Digital ammeterP : A + power meter + programmable protectionH : P + harmonics

/

/

Remote operation

Remote operationSDE2 / Res SDE1 MN / MX2 MX1 XF PF MCH

184 K2 84 D2 C12 C2 A2 254 B2

182 82 C3 A3 252 B3

181 K1 81 D1 C11 C1 A1 251 B1

Control unitCom UC1 UC2 UC3 UC4 M2C / M6C

E5 E6 Z5 M1 M2 M3 F2+ V3 484 Q3

E3 E4 Z3 Z4 T3 T4 VN V2 474 Q2

E1 E2 Z1 Z2 T1 T2 F1 – V1 471 Q1

/

/

/

T4

T3

T2

T1

Z4

Micrologic

Z4

Z3

Z2

Z1

Z3

Z1

Z2

N L3L2L1

Q

Powerupstreamcb

downstreamcb

Z5

VN

V1

V2

V3

M3

M2

M1

F2+

F1 18

1

182

184

SDE2

faul

t

81

82 84

SDE1

K2

Res

K1

faul

t

or

PF

252

254

251

read

y to

clos

e

B1

MCH

B3

B2

char

ged


Identifying the electricalauxiliaries

Electrical diagrams

OF 24 or ON/OFF indication contactsEF 24 Combined "connected/closed"

indication contactsOF 23 orEF 23

OF 22 orEF 22

OF 21 orEF 21

OF 14 orEF 14

OF 13 orEF 13

OF12 orEF12

OF11 orEF11

OF4: ON/OFFOF3 indicationOF2 contactsOF1

OF24 OF23 OF22 OF21 OF14 OF13 OF12 OF11

244 234 224 214 144 134 124 114

242 232 222 212 142 132 122 112

241 231 221 211 141 131 121 111

E60

357A

EF24 EF23 EF22 EF21 EF14 EF13 EF12 EF11

248 238 228 218 148 138 128 118

246 236 226 216 146 136 126 116

245 235 225 215 145 135 125 115

E60

358A

E60

361A

E60

371A

E60

362A

Indication contacts

Indication contacts

CD3: DisconnectedCD2 -positionCD1 contacts

or

CE6: ConnectedCE5 positionCE4 contacts

CT3: Test-positionCT2 contactsCT1

or

CE9: ConnectedCE8 positionCE7 contacts

or

CD6: DisconnectedCD5 positionCD4 contacts

or or or or or or or or

CD3 CD2 CD1 CE3 CE2 CE1 CT3 CT2 CT1

834 824 814 334 324 314 934 924 914

832 822 812 332 322 312 932 922 912

831 821 811 331 321 311 931 921 911

CE6 CE5 CE4 CE9 CE8 CE7

364 354 344 394 384 374

362 352 342 392 382 372

361 351 341 391 381 371

or or

CE3: ConnectedCE2 -positionCE1 contacts

Indication contactsOF4 OF3 OF2 OF1

44 34 24 14

42 32 22 12

41 31 21 11

Chassis contacts

Key:

Drawout device only

SDE1, OF1, OF2, OF3, OF4 supplied as standard

Interconnected connections(only one wire per connection point)

XXX

Chassis contacts

Chassis contacts

12 1411

22 2432 3431 21

OF4

42 4441

OF3 OF2 OF1

open closed

OF . .

closed connectedandclosed

OF . .

CE

EF

not connectedorconnectedand open

or

. . 1

. . 2

. . 4

. . 6

. . 8

. . 5 331

332

334

CE3

connected

321

322

324

CE2

311

312

314

CE1

914

912

911

924

922

921

CT3

934

932

931

CT2 CT1

test

331

332

334

CE3

connected

321

322

324

CE2

311

312

314

CE1


E60

363A

Operation

The carriage switches indicatethe "connected", "test" and "disconnected"positions.

Circuit breaker

Chassis

E60

364A

The ON/OFF indication contacts signalthe status of the device main contacts.

test position

separation of the auxiliary circuits separation of the main circuits

completely connected

completely disconnected

open

open

open

closed

closed

d> 12.7 mm d> 25.4 mm

open

open

open

closed

closed

closed

closedCT: test positioncarriage switch

CD: disconnected-positioncarriage switch

CE: connected-positioncarriage switch

open

closed

open

closed

closed

completely closed completely open

main contacts

OF : ON/OFF (closed/open)indication changeover contacts

closed

open

open


Discovering Masterpact'saccessories

Micrologic control units

E51

329A

E46

108A

For more in-depth information,see the control-unit user manual

Micrologic control units

Long-time rating plugs

M2C and M6C programmable contacts

c standard equipment,one per devicec part numbers:(long-time rating plug andconnection cables notincluded, see below)Micrologic 2.0: 33069Micrologic 5.0: 33070Micrologic 2.0A: 33071Micrologic 5.0A: 33072Micrologic 6.0A: 33073Micrologic 7.0A: 33074Micrologic 5.0P: 47058Micrologic 6.0P: 47059Micrologic 7.0P: 47060Micrologic 5.0H: 47061Micrologic 6.0H: 47062Micrologic 7.0H: 47063c part numbers forconnection cables:47065for drawout device:47805.

c depending on themodel, control units offerin addition:v fault indicationsv measurement ofelectrical parameters(current, voltage, power,etc.)v harmonic analysisv communication.

c M2C: 2 contacts(6 A-240 V)c M6C: 6 contacts(6A-240V).c permissible load oneach of the M6C relayoutputs:v 240 V AC:5 A where p.f = 0.7v 380 V AC:3 A where p.f = 0.7v 24 V DC:8 A where L/R = 0v 48 V DC:1.5 A where L/R = 0v 125 V DC:0.4 A where L/R = 0v 250 V DC:0.15 A where L/R = 0c M6C supply voltage:24 V DC ± 5%c M6C maximumconsumption: 100 mA

c standard equipment,one per control unit.c part numbers:0.4 to 1 x Ir setting:335420.4 to 0.8 x Ir setting:335430.8 to 1 x Ir setting:33544Off (no long-timeprotection): 33545.

c the plugs determinethe setting range for theLong-time protection.

c optional equipment,used with Micrologic Pand H control units.c part numbers(connection cables notincluded, see below):2 M2C contacts:47086 + 470876 M6C contacts: 47066c part numbers forconnection cables:for fixed device: 47074for drawout device:47849.

c contacts can beprogrammed using thekeypad on the controlunit or via the COMoption.c they indicate:v the type of faultv instantaneous ordelayed thresholdoverruns.


Indication contacts

ON/OFF indication contacts (OF)c 4 changeover contactsc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 480 V: 10 A (rms)v 600 V: 6 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):250 V: 3 A.

E51

331A

Additional ON/OFF indication contacts (OF)

c optional equipment,two blocks of 4 OFcontacts per devicec part numbers(connection cables notincluded, see below):one block of 4 OFcontacts: 47887c part numbers forconnection cables:for fixed device:47074for drawout device:47849

c changeover contactsc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 480 V: 10 A (rms)v 600 V: 6 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):250 V: 3 A.

Combined "connected/closed" contacts (EF)c optional equipment, 8EF contacts per devicec each contact ismounted in place of theconnector of anadditional OF contactc part number:one EF contact: 48477

c the contact combinesthe "device connected"and the "device closed"information to producethe "circuit closed"information

c changeover contactsc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 10 A (rms)v 480 V: 10 A (rms)v 600 V: 6 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 2.5 Av 130 V: 0.8 Av 250 V: 0.3 A.

"Fault-trip" indication contact (SDE/1)

c standard equipment oncircuit breakers, oneSDE/1 contact per devicec not available for switch-disconnector versions

c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 5 A (rms)v 480 V: 5 A (rms)v 600 V: 3 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 3 Av 125 V: 0.3 Av 250 V: 0.15 A.

c standard equipment:4 OF per device.

c OF contacts indicatethe position of maincontactsc they trip when theminimum isolationdistance between themain contacts is reached

c OF contacts indicatethe position of the maincontactsc they trip when theminimum isolationdistance between themain contacts is reached

c the contact providesa remote indication ofdevice opening due toan electrical fault



E51

298B

c optional equipment forcircuit breakers, oneadditional SDE/2 contactper devicec not available for switch-disconnector versionsc not compatible with theRes optionc part numbers(connection cables notincluded, see below):one SDE/2 contact:47915c part numbers forconnection cables:for fixed device: 47074for drawout device:47849

Additional "fault-trip" indication contact (SDE/2)

c the contact remotelyindicates device openingdue to an electrical fault

E51

298B

E51

332A


c optional equipment,one Res per devicec not compatible with theSDE/2 optionc part numbers(connection cables notincluded, see below):110/130 V AC: 47901220/240 V AC: 47902c part numbers forconnection cables:for fixed device:47074for drawout device:47849

Electrical reset after fault trip (Res)

c the contact remotelyresets the devicefollowing tripping due toan electrical fault

"Springs charged" limit switch contact (CH)

c the contact indicatesthe "charged" status ofthe operating mechanism(springs charged)

"Ready to close" contact (PF)

Indication contacts

c standard equipment,one CH contact perdevice


c optional equipment,one PF contact perdevicec part numbers(connection cables notincluded, see below):one PF contact: 47080c part numbers forconnection cables:for fixed device:47074for drawout device:47849

c the contact indicatesthat the device may beclosed because all thefollowing are valid:v circuit breaker is openv spring mechanism ischargedv a maintained closingorder is not presentv a maintained openingorder is not present

c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 5 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 3 Av 125 V: 0.3 Av 250 V: 0.15 A.


Auxiliaries for remote operation

Gear motor (MCH)c the gear motorautomatically chargesand recharges the springmechanism

c charging time:4 seconds max.c consumption:v 180 VA ACv 180 W DCc inrush current:2 to 3 In for 0.1 secondc operating rate:maximum 3 cyclesper minute.

E51

290A

E51

294A

Opening releases MX/1 and MX/2, closing release XFc optional equipment,1 or 2 MX releases perdevice, 1 XF per devicec the function (MX or XF)is determined by wherethe coil is installedc part numbers(connection cables notincluded, see below):v standard version:12 V AC50/60 Hz / DC: 3365824/30 V AC50/60 Hz / DC: 3365948/60 V AC50/60 Hz / DC: 33660100/130 V AC50/60 Hz / DC: 33661200/250 V AC50/60 Hz / DC: 33662277 V AC50/60 Hz / DC: 33663380/480 V AC50/60 Hz / DC: 33664500/550 V AC50/60 Hz / DC: 33665.v communicating version(with COM option):12 V AC50/60 Hz / DC: 3303224/30 V AC50/60 Hz / DC: 3303348/60 V AC50/60 Hz / DC: 33034100/130 V AC50/60 Hz / DC: 33035200/250 V AC50/60 Hz / DC: 33036240/277 V AC50/60 Hz / DC: 33037380/480 V AC50/60 Hz / DC: 33038

c part numbers forconnection cables:for fixed device:47074for drawout device:47849c the MX releaseinstantaneously opensthe circuit breaker whenenergisedc the XF releaseinstantaneously closesthe circuit breaker whenenergised, if the device is"ready to close"

c device response time:v MX: 50 ms ± 10v XF: 70 ms +10 / -15> 3200 A: 80 ms ± 10c operating threshold:v MX: 0.7 to 1.1 x Unv XF: 0.85 to 1.1 x Unc the supply can bemaintainedc consumption:v pick-up (80 ms):200 VAv hold: 4.5 VA.

c optional equipment,one MCH gear motorper devicec part numbers(connection cables notincluded, see below):100/130 V AC: 47893200/240 V AC: 47894277 V AC: 47895380/415 V AC: 47896400/440 V AC: 47897480 V AC: 4789824/30 V DC: 4788848/60 V DC:47889100/125 V DC: 47890200/250 V DC: 47891c part numbers forconnection cables:for fixed device:47074for drawout device:47849



E51

296A

c optional equipment,1 MN with delay unitper device.c delay-unit partnumbers (must beordered in addition to theMN):48/60 V AC50/60 Hz / DC: 33680100/130 V AC50/60 Hz / DC: 33681200/250 V AC50/60 Hz / DC: 33682380/480 V AC50/60 Hz / DC: 33683.

Delay unit for MN releases

c the unit delaysoperation of the MNrelease to eliminatecircuit-breaker nuisancetripping during shortvoltage dipsc the unit is wired inseries with the MN andmust be installed outsidethe circuit breaker

E51

333A

c device response time:0.5, 1, 1.5, 3 secondsc operating threshold:v opening:0.35 to 0.7 x Unv closing: 0.85 x Unc consumption:v pick-up (80 ms):200 VAv hold: 4.5 VA

c optional equipment,1 BPFE per devicec part numbers(connection cables notincluded, see below):48534c part numbers forconnection cables:for fixed device:47074for drawout device:47849

Electrical closing pushbutton (BPFE)

c located on the frontface of the device, thispushbutton carries outelectrical closing of thecircuit breaker via the XFrelease, taking intoaccount all the safetyfunctions that are part ofthe control/monitoringsystem of theinstallation.

3 6

MNUVR

1012

100/130 V

AC/DC

S

0.5 1

3 1.5

Retardateur de MN

Time delay for UVR

4 5 6

1 2 3

1 2 3

Instantaneous undervoltage releases (MN)

c optional equipment,1 MN per devicec not compatible with theMX/2 opening releasec part numbers(connection cables notincluded, see below):24/30 V AC50/60 Hz / DC: 3366848/60 V AC50/60 Hz / DC: 33669100/130 V AC50/60 Hz / DC: 33670200/250 V AC50/60 Hz / DC: 33671380/480 V AC50/60 Hz / DC: 33673500/550 V AC50/60 Hz / DC: 33674c part numbers forconnection cables:for fixed device:47074for drawout device:47849

c the MN releaseinstantaneously opensthe circuit breaker whenits supply voltage drops

c device response time:90 ms ±5c operating threshold:v opening:0.35 to 0.7 x Unv closing: 0.85 x Unc consumption:v pick-up (80 ms):200 VAv hold: 4.5 VA

Auxiliairies for remote operationE

5129

4A


Device mechanical accessories

Operation counter (CDM)

c optional equipment,one CDM per devicec part number: 48535

c the operation countersums the number ofoperating cycles.

E46

103A

E46

120A

E46

118A

00399

Escutcheon (CDP)

c optional equipment,one CDP per devicec part numbers:for fixed device:48601for drawout device:48603

c the CDP increases thedegree of protection to IP40 and IK 07 (fixed anddrawout devices).

Transparent cover (CCP)

c optional equipment,one CP per deviceequipped with a CDPc part number: 48604(for fixed and drawoutdevices)

c mounted with a CDP,the CP increases thedegree of protection to IP55 and IK 10 (fixed anddrawout devices).


Device mechanical accessoriesDiscovering Masterpact'saccessories

E46

238A

E46

579A

Transparent cover for pushbutton locking using a padlock,lead seal or screws

c optional equipment,one locking cover perdevicec part number: 48536

c the transparent coverblocks access (togetheror separately)to the pushbuttons usedto open and close thedevicec locking requires apadlock, a lead sealor two screws.

Device locking in the OFF position using a padlock

c optional equipment,one locking systemper devicec part number: 48539

c the unit inhibits localor remote closing of thedevicec up to three padlocksmay be used for locking.

Device OFF position locking kit for keylocks

c optional equipement,one locking kit per devicec part numbers (locks notincluded):for Profalux or Roniskeylocks: 48541for Castell keylocks:48543for Kirk keylocks:48542

c the kit inhibits local orremote closing of thedevice.

Keylocks required for the device locking kit

E51

286A

E51

273A

E51

287A

E51

274A

Ronis

Profalux

c one or two keylocks perlocking kitc part numbers:v Ronis:1 keylock: 419402 keylocks: 41950.v Profalux:1 keylock: 428882 keylocks: 42878.


Chassis mechanical accessories

c optional equipmentc part numbers(set of shutters for topand bottom):v NW08/NW40:3 poles: 485874 poles: 48589v NW40b/NW633 poles: 485884 poles: 48590

c mounted on thechassis, the safetyshutters automaticallyblock access to thedisconnecting contactcluster when the deviceis in the "disconnected"or "test" positions.

c IP20.

E51

334A

E46

293A

Ronis

Profalux

Shutter locking blocks

c optional equipment:2 blocks for NW08 toNW404 blocks for NW40b toNW63c part number (2 blocks):48591

c the block may bepadlocked. It:v prevents connectionof the devicev locks the shutters in theclosed position.

Shutter position indication and locking on front face

c optional equipmentc part numbers:v NW08/NW040:3 and 4 poles: 48592v NW40b/NW633 poles: 485934 poles: 48594

c this option located onthe front of the chassis:v indicates that theshutters are closedv can be used toindependently orsimultaneously padlockthe two shutters(top and bottom).

Circuit breaker locking in "disconnected" position

Keylocks required with the "disconnected" position lockingsystem

c one or two keylocks perlocking systemc part numbers:v Ronis:1 keylock: 419402 keylocks: 41950v Profalux:1 keylock: 428882 keylocks: 42878.

E46

946A

E46

561A

E51

286A

E51

273A

E51

287A

E51

274A

Top shutter closed Bottom shutter closed

c optional equipment,one locking systemper devicec part numbersfor Profalux or Roniskeylocks: 48564for Castell keylocks:48566for Kirk keylocks: 48565

c mounted on thechassis and accessiblewith the door closed, thissystem locks the circuitbreaker in "disconnected"position using one or twokeylocksc the "disconnected"position locking systemmay be modified to lockthe circuit breaker inall three positions.

Safety shutters


Discovering Masterpact’saccessories

Door interlock

c optional equipment,one door interlock perchassisc part number: 47914

c this device inhibitsopening of the cubicledoor when the circuitbreaker is in "connected"or "test" position

c it may be mounted onthe left or right-hand sideof the chassis.

E46

652A

E46

124A

Racking interlock

Mismatch protection

Auxiliary terminal shield (CB)

E46

111A

E51

351A

Chassis mechanical accessories

c optional equipment,one racking interlock perchassisc part number: 48582

c this device preventsinsertion of the rackinghandle when the cubicledoor is open

c it is mounted on theright-hand side of thechassis

c optional equipment,one mismatch protectiondevice per chassisc part number: 33767

c mismatch protectionoffers twenty differentcombinations that theuser may select toensure that only acompatible circuitbreaker is mountedon a given chassis.

c optional equipment,one CB shield perchassisc part numbers:v NW08/NW0403 poles: 485954 poles: 48596v NW40b/NW633 poles: 485974 poles: 48598

c the shield preventsaccess to the terminalblock of the electricalauxiliaries.


"Connected", "disconnected" and "test" position carriageswitches (CE, CD, CT)

c optional equipment, oneto nine carriage switchesc standard configuration,0 to 3 CE, 0 to 3 CD,0 to 3 CTc other configurations(by ordering additionalactuators):0 to 9 CE, 0 CD, 0 CT0 to 6 CE, 0 to 3 CD, 0 CT0 to 6 CE, 0 CD, 0 to 3 CTc part numbers(connection cables notincluded, see below):v 1 carriage switch:33170v 1 set of actuators foradditional carriageswitches: 48560c part number forconnection cables(per carriage switch):47849

c the carriage switchesindicate the threepositions:CE: connected positionCD: disconnectedposition (when theminimum isolationdistance between themain contacts and theauxiliary contacts isreached)CT: test position

c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):240 V: 10 A (rms)380 V: 5 A (rms)c breaking capacity forDC power(DC12 as per 947-5-1):250 V: 0.3 A.

E46

095A


Inspecting and testingbefore use

Initial testsProcedure

A general check of the circuit breaker takes only a few minutes and avoids any riskof mistakes due to errors or negligence.A general check must be carried out:c prior to initial usec following an extended period during which the circuit breaker is not used.

A check must be carried out with the entire switchboard de-energised.In switchboards with compartments, only those compartments that may beaccessed by the operators must be de-energised.

Electrical testsInsulation and dielectric-withstand tests must be carried out immediately afterdelivery of the switchboard. These tests are precisely defined by internationalstandards and must be directed and carried out by a qualified expert.

Prior to running the tests, it is absolutely necessary to:c disconnect all the electrical auxiliaries of the circuit breaker(MCH, MX, XF, MN, Res electrical remote reset)c remove the long-time rating plug on the 7.0 A, 5.0 P, 6.0 P, 7.0 P, 5.0 H, 6.0 H, 7.0 Hcontrol units. Removal of the rating plug disconnects the voltage measurement input.

Switchboard inspectionCheck that the circuit breakers are installed in a clean environment, free of anyinstallation scrap or items(tools, electrical wires, broken parts or shreds, metal objects, etc.).

Conformity with the installation diagramCheck that the devices conform with the installation diagram:c breaking capacities indicated on the rating platesc identification of the control unit (type, rating)c presence of any optional functions (remote ON/OFF with motor mechanism,auxiliaries, measurement and indication modules, etc.)c protection settings (long time, short time, instantaneous, earth fault)c identification of the protected circuit marked on the front of each circuit breaker.

Condition of connections and auxiliariesCheck device mounting in the switchboard and the tightness of power connections.Check that all auxiliaries and accessories are correctly installed:c electrical auxiliariesc terminal blocksc connections of auxiliary circuits.

OperationCheck the mechanical operation of the circuit breakers:c opening of contactsc closing of contacts.

Check on the control unitCheck the control unit of each circuit breaker using the respective user manuals.

These operations must be carried out inparticular before using a Masterpact devicefor the first time.


Note the faultFaults are signalled locally and remotely by the indicators and auxiliary contactsinstalled on circuit breakers (depending on each configuration). See page 12 in thismanual and the user manual of the control unit for information on the faultindications available with your circuit breaker.

Identify the cause of trippingA circuit must never be reclosed (locally or remotely) before the cause of the faulthas been identified and cleared.

A fault may have a number of causes.c depending on the type of control unit, fault diagnostics are available. See the usermanual for the control unit.c depending on the type of fault and the criticality of the loads, a number ofprecautionary measures must be taken, in particular the insulation and dielectrictests on a part of or the entire installation. These checks and test must be directedand carried out by qualified personnel.

Inspect the circuit breaker following a short-circuitc check the arc chutes (see page 43).c check the contacts (see page 43).c check the tightness of connections (see the device installation manual).c check the disconnecting-contact clusters (see page 44).

Reset the circuit breakerThe circuit breaker can be reset locally or remotely.See page 12 in this manual for information on how the circuit breaker can be reset.

What to do when the circuitbreaker trips


Interval Operations Procedureeach year c open and close the device v see pages 10 and 11

locally and remotely,successively usingthe various auxiliariesc test the operatingsequences v see page 8c test the control unit using v see the user manualthe mini test kit of the control unit

every two years or c check the arc chutes v see page 43when the control-unit c check the main contacts v see page 43maintenance indicator c check the tightness of v see the devicereaches 100 connections installation manual

c check the v see page 44disconnecting-contactclusters

Maintaining Masterpactperformance

Recommended maintenanceprogram

Periodic inspections required

Type of Maximum Service life of various partscircuit breaker service life

Arc chutes Main contacts Connecting-rod MX/XF

springs, releases

MCHNW08 to NW16 25000 10000 10000 12500 12500types N1/H1/H2NW08 to NW16 25000 3000 10000 12500 12500type L1NW20 to NW25 20000 440 V: 8000 440 V: 8000 10000 12500types H1/H2 690 V: 6000 690 V: 6000NW20 to NW25 20000 2000 440 V: 8000 10000 12500type H3 690 V: 6000NW20 20000 3000 10000 10000 12500type L1NW32 to NW40 20000 440 V: 5000 440 V: 5000 10000 12500types H1/H2 690 V: 2500 690 V: 2500NW32 to NW40 20000 1250 440 V: 5000 10000 12500type H3 690 V: 2500NW40b to NW63 10000 1500 3000 5000 12500types H1/H2

Recommended program for devices usedunder normal operating conditions:Ambient temperature: -5° C / +60°CNormal atmosphere

Part Intervening entity Description orprocedure

arc chutes c user v see page 43.main contacts c inspection: user v see page 43.

c replacement:Schneider After SalesSupport

MCH gear motor c user v see page 9.mechanical c userinterlocksconnecting-rod c Schneider After Salessprings SupportMX/MN/XF c user v see pages 10, 11.

Parts requiring replacement, depending on the number ofoperating cyclesThe following parts must be replaced periodically to lengthen the service life of thedevice (maximum number of operating cycles).

Part replacement must be programmed on the basis of the data below, listing theservice life of the various parts in numbers of O/C cycles at the rated current.

Number of O/C cycles at the rated current


Arc chutesc remove the fixing screws:v types N1, H1 and H2 ≤ NW 40: two screwsv types H1 and H2 ≥ NW 40b, type H3: three screwsv type L1: four screws.

E51

275A

If the control unit has a maintenanceindicator, there is no need to systematicallycheck the contacts.

If the contacts are worn, have theconcerned poles replaced by the Schneiderservice centre.

Maintenance operations

E51

280A

E51

281A

E51

279A

Wear of main contactsc remove the arc chutesc close the device and check the contacts

Contacts OK Contacts worn

Contacts OK Contacts worn

E51

276B

E51

277B

E51

282B

E51

278B

Before undertaking any maintenance work,de-energise the installation and fit locks orwarnings in compliance with all applicablesafety standards.

Type H1, H2 (≥ 4000b A), L1

Type N1, H1, H2, H3 (≤ 4000 A)

c check the arc chutes:v chamber not crackedv separators not corroded.

If necessary, replace the arc chutes.


Disconnecting-contact clustersc grease the contacts using the grease listed on page 45,supplied by Schneider Electricc check the contacts as follows:v open the circuit breakerv de-energise the busbarsv disconnect the circuit breakerv remove the circuit breakerv check the contact fingers (no sign of copper should be visible)Replace any worn clusters.c the position of the clusters must correspond to the table below.

layout n° 1 layout n° 2 layout n° 3 layout n° 4 layout n° 5


Maintenance operationsE

6036

0C

Rating NW08 NW10 NW16 NW20 NW25 NW32 NW40 NW40b NW63Type NW12 NW50N1 layout n° 1

2 clusters/pole

H1 layout n° 2 layout n° 3 layout n° 4 layout n° 5 layout n° 4 4 clusters/pole 8 clusters/pole 12 clusters/pole 14 clusters/pole 24 clusters/pole

H2

H3

L1 layout n° 3 layout n° 58 clusters/pole 14 clusters/pole

corrosion layout 2' layout 3' layout 5 layout 4protection 4 clusters "GOLD"/pole 8 clusters "GOLD"/pole 14 clusters "GOLD"/pole 24 clusters "GOLD"/pole

E51

324B

E51

325B

E51

326B

E51

327B

E51

328C

layout 2' layout 3'

E71

924A

E71

925A


Ordering replacement parts

Electrical accessoriesThe electrical accessories that may require replacement are the following:c MCH gear motorc MX opening release(s)c XF closing releasec MN undervoltage release.

See pages 33 and 34 in the "Auxiliaries for remote operation" section for theircharacteristics and part numbers.

E51

335A

E46

109A

Arc chutes

c part numbers(1 arc chute):v NW type N1NW08 to NW40 types H1and H2: 47935v NW40b to NW63 typesH1 and H2NW type H3: 47936v NW type L1: 47937.

c NW08 to NW40:one chute per poleNW40b to NW63:two chutes per pole.

Disconnecting-contact clusters for standard NW

c part number (1 cluster):33166

c number per circuitbreaker, see tablepage 44.

Grease for disconnecting-contact clusters

c part number (1 can) for standard NW: 33160.

Front

c part number (1 front for3- or 4-pole devices):47939.

c 1 per device.

E46

237A

Crank

c part number (1 crank):47944.

c 1 per device.

E51

336A

c 1 per device.

Charging handle

E46

126A

c part number (1 handle):47940.

c part number (1 can) for NW with corrosion protection: 48617.



Troubleshooting and solutions

Problem Probable causes Solutions

opening of device not indicated by the pushbutton c the supply voltage for the MN v check the voltage.indicator signalling a fault trip undervoltage release is too low Implement corrective action

or equal to zero.c the MN release is faulty. v replace the faulty devicec load-shedding order sent v check the overall load on theby another device. distribution system.

If necessary, modify the settingsof devices in the installation.

c transient presence of the voltage v determine the origin of the order.across the terminals ofthe MX shunt release.

instantaneous opening after each attempt c closing on a short-circuit. v clear the fault. Check the conditionto close the circuit breaker (indicated by the of the Masterpact device before(pushbutton indicator signalling a fault trip) putting it back into service

c transient overcurrent when closing. v modify the distribution systemor the control-unit settingsCheck the condition of the Masterpactdevice before putting it backinto service

c thermal memory. v see the user manualof the control unit.

circuit breaker cannot be opened remotely c insufficient supply voltage for the MX v check the supply voltage.can be opened locally shunt release(s) U < 0.7 Un. Apply a voltage between

0.7 and 1.1 Un.c faulty electrical circuit for the MX v remove the front faceshunt release(s). v check the MX shunt release(s)c drop in voltage across the terminals v completely cut the supply voltageof the MN release(s) to less than of the release to be checked.0.35 Un. The circuit breaker should open.

- If it does not open replace the tested release- If it opens, resupply the testedrelease with power and reclosethe circuit breaker.Slowly reduce the voltageand check that the release opensthe circuit breaker between0.35 and 0.7 Un. If there is a problem,replace the tested release.

circuit breaker cannot be opened locally c faulty operating mechanism v contact a Schneider service centre. or welded main contacts.

nuisance tripping of the circuit breaker c reset pushbutton indicator not v push in completely the reset(with pushbutton indicator signalling a fault trip) pushed-in completely. pushbutton indicator.


Problem Probable causes Solutionscircuit breaker cannot be closed remotely or locally c closing on a short-circuit. v clear the fault. Check the condition

of the Masterpact device beforeputting it back into service.

c pushbutton indicator signalling a fault v reset the pushbutton indicator.trip has not been reset(only if reset is not automatic).c circuit breaker not completely connected. v terminate racking in (connection)

of the circuit breaker.c anti-pumping function. v cut the supply of power to the XF

closing release, then resupply it.c circuit breaker not charged v check the supply of power to the (spring mechanism). MCH gear motor.

Check the supply circuits.Check that manual charging ispossible.If necessary, replace the MCH gearmotor.

c the XF closing release continuously v cut the supply of power to the XFsupplied with power. closing release, then send the closing

order again via the XF, but only if thecircuit breaker is "ready to close".

c MX shunt release(s) supplied with power. v determine why the MX release(s)are supplied with power.Cut the supply of power to theconcerned MX release(s),then attempt to close via the XF.

c MN release not supplied with v supply the MN with voltage greaterpower or faulty. than 0.85 Un, then attempt to close

via the XF.If the circuit breaker does not close,remove the front face and check thatthe pick-up voltage of the MN is correctIf not, replace the auxiliary.

c circuit breaker locked in the v disable the locking function."open" position.c circuit breaker interlocked. v check the situation,

it may be normal.circuit breaker cannot be closed remotely, c XF closing release not supplied v check the power supply (voltagecan be closed locally. with enough power or faulty. should be between 0.85 and 1.1 Un)circuit breaker cannot be recharged electrically. c insufficient supply voltage v check the supply voltage.

for the MCH gear motor. Check the supply circuit for the MCHgear motor.Attempt to recharge the mechanismmanually.If there is a problem, the mechanismis faulty. Contact a Schneider servicecentre.If the mechanism can be chargedmanually, the MCH gear motor isfaulty and must be replaced.

the crank cannot be inserted to connect c system is padlocked, a "connected" v remove the padlock and/or disableor disconnect the circuit breaker. or "disconnected" position locking function the locking function(s).

is enabled or the racking interlock is enabled.c chassis rails not completely pushed in. v push the rails in completely.

circuit breaker or right-hand rail of chassis c the crank has not been removed v remove the crank and store it.(circuit breaker removed) cannot be removed. from the circuit breaker.

c the circuit breaker is notcompletely disconnected. v completely disconnect the circuit

breaker.c system is padlocked, a "connected" v remove the padlock and/or disableor "disconnected" position locking the locking function(s).function is enabled or the rackinginterlock is enabled.

circuit breaker cannot be connected (racked in). c the circuit breaker and chassis v check the match between the two.do not match. If OK, check the mismatch protection

installed on the circuit breakerand chassis.

c the disconnecting-contact clusters v check the position of theare incorrectly positioned. disconnecting-contact clusters.c the safety shutters are locked(locked inside chassis or on front face). v remove the lock(s).


Checking Masterpactoperating conditions

E51

261B

Test

E51

262B

Test

E51

260B

Test

Ambient temperatureMasterpact NW devices can operate under the following temperature conditions:c the electrical and mechanical characteristics are stipulated for an ambienttemperature of -5° C to +70° Cc circuit-breaker closing is guaranteed down to -35° Cc Masterpact NW (without the control unit) can be stored in an ambienttemperature of -40° C to +85° Cc the control unit can be stored in an ambient temperature of -25° C to +85° C.

Extreme atmospheric conditionsMasterpact NW devices have successfully passed the tests defined by the followingstandards for extreme atmospheric conditions:

c IEC 68-2-1: dry cold at -55° Cc IEC 68-2-2: dry heat at +85° Cc IEC 68-2-30: damp heat (temperature +55° C, relative humidity 95%)c IEC 68-2-52 level 2: salt mist.

Masterpact NW devices can operate in the industrial environments defined bystandard IEC 947 (pollution degree up to 4).

It is nonetheless advised to check that the devices are installed in suitably cooledswitchboards without excessive dust.

Masterpact NW devices with corrosion protection have successfully passed thetests defined by the following standards for extreme atmospheric conditions:

c IEC 68-2-42: atmospheres containing sulphur dioxide (SO2)c IEC 68-2-43: atmospheres containing hydrogen sulphide (H2S).

VibrationsMasterpact NW devices resist electromagnetic or mechanical vibrations.

Tests are carried out in compliance with standard IEC 68-2-6 for the levels requiredby merchant-marine inspection organisations (Veritas, Lloyd's, etc.):c 2 to 13.2 Hz: amplitude ±1 mmc 13.2 to 100 Hz: constant acceleration 0.7 g.

Excessive vibration may cause tripping, breaks in connections or damage tomechanical parts.


E51

263B

2000

m

Test

AltitudeMasterpact NW devices are designed for operation at altitudes under 2000 metres.

At altitudes higher than 2000 metres, the modifications in the ambient air (electricalresistance, cooling capacity) lower the following characteristics.

altitude (m) 2000 3000 4000 5000dielectric resistance 3500 3150 2500 2100voltage (V)average insulation 1000 900 700 600level (V)maximum utilisation 690 590 520 460voltage (V)average thermal 1 x In 0.99 x In 0.96 x In 0.94 x Incurrent (A) at 40 °C

E51

264B

Test

Electromagnetic disturbances

Masterpact NW devices are protected against:v overvoltages caused by devices that generate electromagnetic disturbancesv overvoltages caused by an atmospheric disturbances or by a distribution-systemoutage (e.g. failure of a lighting system)v devices emitting radio waves (radios, walkie-talkies, radar, etc.)v electrostatic discharges produced by users.

Masterpact NW devices have successfully passed the electromagnetic-compatibility tests (EMC) defined by the following international standards:c IEC 947-2, appendix Fc IEC 947-2, appendix B (trip units with earth-leakage function).

The above tests guarantee that:c no nuisance tripping occursc tripping times are respected.

Schneider Electric Industries SA

Designed by: HeadLinesPrinted by:

As standards, specifications and designs develop from time, always ask for confirmation of theinformation given in this publication.

5, rue Nadar92506 Rueil-Malmaison CedexFranceTel: +33 (0)1 41 29 82 00Fax:+33 (0)1 47 51 80 20

http://www.schneiderelectric.com

04443720AA-C 01-02

This document has been printed on ecological paper.

Documents

NW User Manual