SIEMENS 3WLAir Circuit Breakers

The SENTRON 3WL circuit breaker takes into account the increased demands made on air circuit breakers in terms of operator control and monitoring of networks. With it’s great flexibility it can be used as an incoming-feeder, distribution, tie, and outgoing-feeder circuit breakers in electrical installations or for switching and protecting motors, capacitors, generators,transformers, busbars and cables.

It is easy to use and universally communication-capable. Connected to an electronic control system, it offers comprehensive possibilities for monitoring of network events.

Highlights

• Universalcommunicationsolutions,whichcanalsobeusedincombinationwiththe3VLMCCB.

•Withonlythreesizes,theSENTRON3WLcoversapowerrangefrom630to6300Awithamodulardesignanduniversal,uniformaccessoriesacrossallsizes.

• Simpleplanning,assemblyandretrofittingasaresultofthemodulardesign

Now AvailableRetro Fit Kits to Replace most old ACB’s with Siemens 3WL ACB’s

Switching, Protection, Measuring and Monitoring Devices

SENT

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3WLA

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Air Circuit Breakers3WL air circuit breakers

Overviewofcomponentsandaccessoryparts

Modulardesignofthecircuitbreakerwithstandardizedaccessories

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Air Circuit Breakers3WL air circuit breakers

BenefitsLow space requirementsTheSENTRON3WLdevicesrequireverylittlespace.SizeIdevices(upto1600A)fitintoa400mmwideswitchgearpanel.SizeIIIdevices(upto6300A)arethesmallestoftheirkindandwiththeirconstructionwidthof704mmfitintoa800mmwideswitchgearpanel.

Modular designComponentslikeauxiliaryreleases,motorizedoperatingmechanisms,electronicreleases,currentsensors,auxiliarycircuitsignalingswitches,automaticresetdevices,interlocksandengagementoperatingmechanismscanallbeexchangedorretrofittedatalaterstage,thusallowingthecircuitbreakertobeadaptedtonew,changingrequirements.Themaincontactelementscanallbereplacedinordertoincreasetheenduranceofthecircuitbreaker.

Retrofittable modules for electronic releasesModularityisoneofthemainfeaturesofthenewSENTRON3WLcircuitbreakers.SpecialLCDs,ground-faultmodules,ratedcurrentmodulesandcommunicationmodulesfortheelectronicreleasesareavailableforfastandeasyretrofittingandadaptationtochangingrequirements.

CommunicationTheuseofmoderncommunication-capablecircuitbreakersopensupcompletelynewpossibilitiesintermsofstart-up,parameterization,diagnostics,maintenanceandoperation.Thisallowsmanydifferentwaysofreducingcostsandimprovingproductivityinindustrialplants,buildingsandinfrastructureprojectstobeachieved.

FlexibilityThe3WLhasasecondparametersetthatcanbeselected.Ifthelinesupplyconditionschangeeg.whenchangingovertogeneratoroperation,the3WLautomaticallychangesovertothesecondparametersetinbesttime,optimallyadaptingthetripunitcharacteristicstothenewsituation.

Partial Load ProtectionThe3WLoptimallyprotectsyourplantorsystemevenunderpartialloadconditionsusingaRatedCurrentModulethecircuitbreakercanbesetinjustsecondstomatchtheratedcurrent.

International standards and approvals•IEC60947-2

•DINVDE0690Part1

•Climate-proofacc.toDINIEC68Part30-2

•CCC,Gost

•Shipbuilding,e.g.:GL,ABS,LRS,PRS.DesignsaccordingtoUL489arealsoavailableforinternationaluse.3WLaircircuitbreakers/non-automaticaircircuitbreakersaccordingtoUL489upto5000A.

Figure1:3WLaircircuitbreaker,withdrawable Figure2:3WLaircircuitbreaker,fixedmounting

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Air Circuit BreakersTechnical Specifications

Standard-- Not available

Optional1) ETU15B cannot be used with 3WL circuit breakers, size III.

3WL air circuit breakers/non-automatic air circuit breakers according to UL 489 up to 5000 A, see Catalog LV 16. SENTRON transfer switching control unit for ATSE, see chapter "Monitoring devices".

Air circuit breakers 3WL air circuit breakers/non-automatic air circuit breakers up to 6300 A (AC)

3WL non-automatic air circuit breakers up to 4000 A (DC)

Size I, II, III II

Rated current In A 630, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 6300

1000, 2000, 4000

Number of poles 3-pole, 4-pole 3-pole, 4-pole

Rated operationalvoltage Ue

V ACV DC

... 690/1000/1150--

--... 1000

Rated ultimateshort-circuit breaking capacity at 500 V AC

kA

Size I

55/66

Size II

66/80/100

Size III

100/150 (3-pole), 130 (4-pole)

30/25/20 (at 300/600/1000 V DC)

Endurance Operating cycles

20000 15000 10000 15000

Mounting position

Degree of protectionWith cover IP55 IP55Without cover (with door sealing frame)

IP41 IP41

Dimensions 3-/4-pole

W mm 320/410 460/590 704/914 460/590

Fixed mounting

H mm 434 434 434 434D mm 291 291 291 291

Withdraw-able

H mm 465,5 465,5 465,5 465,5D mm 471 471 471 471

Type ETU15B 1) ETU25B ETU27B ETU45B ETU76BElectronic releases for SENTRON 3WL circuit breakersOverload protection

Short-time delayed short-circuit protection

--

Instantaneous short-circuit protection

Neutral conductor protection -- --

Ground-fault protection -- --

Zone Selective Interlocking -- -- --

LCD, 4-line -- -- -- --

LCD, graphic -- -- -- --

Communication throughPROFIBUS DP

-- -- --

Measurement function Plus -- -- --

Selectable parameter sets -- -- -- --

Parameters freely programmable -- -- -- --

CubicleBUS -- -- --

Size IIISize IISize I

NSE0_00061a

30° 30°

NSE0_00062a

30° 30°

NSE0_00061a

30° 30°

NSE0_00062a

30° 30°

NSS0_00535

H

B T

NS

E0_

0110

6a

NS

E0_

0110

7a

NS

E0_

0110

8a

NS

E0_

0110

9a Rating Plug

NS

E0_

0111

1a

W D

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Air Circuit BreakersSwitching Capacity

1) Size II with In max ��2500 A. 2) Size II with In max = 3200 A and In max = 4000 A. 3) At a rated voltage of �� 690 V the Icw value of the circuit breaker cannot be

greater than the Icu or Ics value at 690 V. 4) Rated operational voltage Ue = 1150 V. 5) At Ue = 220 V DC. 6) At Ue = 300 V DC. 7) At Ue = 600 V DC. 8) At Ue = 1000 V DC.

Size I II III

Type 3WL11 3WL12 3WL13

Switching capacity class N

S

N

S

H

H

C3-pole

C4-pole

Short-circuit breaking capacityRated operational voltage Ue up to 415 V AC

Icu kA 55 66 66 80 100 100 150 130

Ics kA 55 66 66 80 100 100 150 130

Icm kA 121 145 145 176 220 220 330 286

Rated operational voltage Ue up to 500 V AC

Icu kA 55 66 66 80 100 100 150 130

Ics kA 55 66 66 80 100 100 150 130

Icm kA 121 145 145 176 220 220 330 286

Rated operational voltage Ue up to 690 V AC

Icu kA 42 50 50 75 85 85 150 130

Ics kA 42 50 50 75 85 85 150 130

Icm kA 88 105 105 165 187 187 330 286

Rated operational voltage Ue up to 1000 V/1150 V AC

Icu kA -- -- -- -- 50 50 704) 704)

Ics kA -- -- -- -- 50 50 704) 704)

Icm kA -- -- -- -- 105 105 154 4) 154 4)

Rated short-time withstand current I cw of the circuit breakers3)

0.5 s kA 55 66 66 80 100 100 100 100Aks 1 42 50 55 66 80 100 100 100Aks 2 29,5 35 39 46 651)/702) 80 80 80

3 s kA 24 29 32 37 501)/652) 65 65 65Short-circuit breaking capacity I cc of the non-automatic air circuit breakersUp to 500 V AC kA 55 66 66 80 100 100 100 100

AkCA V 096 ot pU 42 50 50 75 85 85 100 100

Up to 1,000 V /1150 V AC kA -- -- -- -- 504) 504) 704) 704)

Size II

Type 3WL12

Switching capacity class DCShort-circuit breaking capacityUp to 220 V DCUp to 300 V DCUp to 600 V DCUp to 1000 V DC

Icc Icc Icc Icc

kAkAkAkA

35302520

Rated short-time withstand current I cw0.5 s1 s2 s3 s

kAkAkAkA

--355)/306)/257)/208) ----

N S N S H H C C

DC

Circuit breaker with ECO switching capacity N

Circuit breaker with standard switching capacity S

Circuit breaker with high switching capacity H

Circuit breakers with very high switching capacity C

Non-automatic air circuit breakers with DC switching capacity

N

S

H

C

DC

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Available for most brands

By installing the SIEMENS complete ACB and retrofit kit inside an existing cradle you can minimize costs

and shut down times.

SIEMENSretrofitkitshavebeendesignedandmanufacturedinAustraliabyKentanEngineering.

WiththeageingofmanyACB’sinstalledthroughoutthecountry,oftenreplacementpartsarenolongeravailable

orsparepartshaveexorbitantcosts.

TheSiemens3WLACBfittedinaNilsenNABcradle

ShowingtheuppersetofextensionbarsconnectedtotheACB

SIEMENS AIR CIRCUIT BREAKERRETRO FIT KITS

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Each application has the kit manufactured to order. Each kit contains all the necessary extension bars,

supports, bolts etc and a complete set of instructions showing step by step how to fit the ACB’s together.

ExtensionbarsconnectingtheACBtotheexistingcradle.

TheSiemenscradleandACBmountedinsidetheNilsencradle

Contact Ramelec for details on 3WL Retro Fit kits.

INSTALLATION

INSTRUCTIONS

_________________

SIEMENS3WL1AIR

CIRCUITBREAKER

RETROFITKIT

-FOR-

NILSENNAB1/D16AIR

CIRCUITBREAKER

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Darwin (NT)Ramelec Pty LtdTel: 1300 309 303Fax: 1300 309 308

Ramelec Electronics (H.K.) CO.5/F, East Asia Textiles Industrial Building, 2 Ho Tin Street, Tuen Mun, N.T. Hong Kong

Ramelec Main Offi ces:

Ramelec Regional Offi ces:

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Sensors & Controls

McDonnell & MillerTheinformationprovidedinthisbrochurecontainsmerelygeneraldescriptionsorcharacteristicsofperformancewhichinactualcaseofusedonotalwaysapplyasdescribedorwhichmaychangeasaresultoffurtherdevelopmentoftheproducts.Anobligationtoprovidetherespectivecharacteristicsshallonlyexistifexpresslyagreedinthetermsofcontract.AllproductdesignationsmaybetrademarksorproductnamesofRamelecPtyLtdorsuppliercompanieswhoseusebythirdpartiesfortheirownpurposescouldviolatetherightsoftheowners. RE

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