Masterpact Universal Power Circuit Breaker Catalog

1 CONTENTSD escriptionPageIntroduction .. 1 Advantages .. 3 Description .. 6 Control Units .. 7 Accessories .. 23 Switch .. 36 Trip Curves .. 37 Wiring Diagrams .. 42 Circuit Breaker Dimensions .. 46 Appendix .. 62 Masterpact Universal PowerCircuit BreakerClass 6311 1995 Square D All Rights Reserved11/98 Standard CompliancenUL489: MP08 to MP50 Circuit breakers and their accessories are Listed under UL files E63335,E103955 and E113555nUL1066/ANSI: MC08 to MC50 Circuit breakers are UL Listed according to UL1066 (ANSI C37-13)under file E161835nInternational Standards: the Masterpact Circuit Breaker has been designed to meet all themajor standards including:oIEC 947-2 and related standards such as VDE, BS, EN, , JISnUL 1008.

2 MP12, MP20 and MP30 Circuit breakers are suitable for use in transfer switchequipmentnMarine Applications:oHomologated by Bureau VeritasoApproved by Det Norske Veritas and Germanische Lloyd'soListed by Lloyd's Register of ShippingoAmerican Bureau of Shipping applicationoUL marineHigh Short-time Current Rating: Up to 100 kA for 1 exceptional short-time rating of 75,000 A in a 3000 A frame and 100,000 A in a 4000 A frameand above allows the Circuit breakers to be fully selective up to their interrupting RatedThe Circuit breakers are designed for continuous operation at 100% of their current PerformancesThe UL 489 and UL1066 (ANSI C37-13) standard performance tests assure that the Circuit breakerhas sufficient characteristics to be used in normal conditions.

3 However, the Circuit Breaker exceeds,without additional costs, the UL standard 1,500 operations required in endurance. The heavy-dutymechanism and the contact design provide a mechanical endurance of 10,000 operations (approx.)without maintenance (see page 64).TropicalizationThe standard moisture and fungus protection ensure normal operation under extreme ambientconditions. Masterpact Circuit breakers comply with T2 tropicalization (IEC Standard 68-2-30);relative humidity 95% at 113 F (45 C) and 80% at 131 F (55 C) (hot, humid climate). Salt sprayresistance as per IEC 4-pole version is an efficient solution to ground fault problems created by incorrectly groundedstandby generators and incorrect transfer switching systems.

4 By isolating the neutral of multiplesources coupled together, 4-pole Circuit breakers prevent ground faults from returning to the sourcevia unintended paths. Where unintended paths exist, ground fault sensing can become inaccurate orcreate nuisance Rating (A)3-Pole4-Pole800MP-MCMP-MC1200 MPMP1600MP-MCMP-MC2000MP-MCMP-MC2500 MPMP3000 MPMP3200MC4000MP-MCMP (1)5000MP-MCMP (1)6300MP (1)(1) Not UL 1995 Square D All Rights Reserved2 IntroductionRatingsTypeAmpere Rating (A)Sensor Ratings (A)MP/MC08800250 400 600 800MP121200800 1200MP/MC1616001200 1600MP/MC2020001600 2000MP2525002000 2500MP3030002500 3000MC3232002500 3200MP/MC4040002500 3000 4000MP/MC5050004000 5000MP6363005000 6300 Interrupting RatingsUL489/NEMA AB1 TypeRating (A)

5 480 Vac600 VacShort-timeStandard Interrupting RatingMP08 H180065 kA65 kA50 kAMP12 H1120065 kA65 kA50 kAMP16 H1160065 kA65 kA50 kAMP20 H1200075 kA75 kA75 kAMP25 H1250075 kA75 kA75 kAMP30 H1300075 kA75 kA75 kAMP40 H14000100 kA100 kA100 kAMP50 H15000100 kA100 kA100 kAMP63 H16300 (1)100 kA100 kA100 kAHigh Interrupting RatingMP08 H2800100 kA65 kA50 kAMP12 H21200100 kA65 kA50 kAMP16 H21600100 kA65 kA50 kAMP20 H22000100 kA75 kA75 kAMP25 H22500100 kA75 kA75 kAMP30 H23000100 kA75 kA75 kAMP40 H24000125 kA100 kA100 kAMP50 H25000125 kA100 kA100 kAMP63 H26300 (1)150 kA100 kA100 kA(1) Not UL C37 13/NEMA SG3 TypeRating (A)508 V635 VShort-timeSpecial Interrupting RatingMC08 N180050 kA50 kA42 kAMC16 N1160050 kA50 kA50 kAStandard Interrupting RatingMC08 H180065 kA65 kA50 kAMC16 H1160065 kA65 kA50 kAMC20 H1200065 kA65 kA65 kAMC32 H1320065 kA65 kA65 kAMC40 H14000100 kA100 kA100 kAMC50 H15000100 kA100 kA100 kA3 1995 Square D All Rights Reserved11/98 Advantages063130060631300706313003063130 0406313005 Drawout Circuit Breaker DesignnThe drawout assembly mechanism allows the Circuit Breaker to be racked in four positions(connected, test, disconnected and withdrawn).

6 NThe closing and opening push buttons, the racking handle and racking mechanism are accessiblethrough the front door cutout. Therefore the Circuit Breaker can be disconnected without openingthe door and accessing live parts. Safety shutters can be provided as an option for protection fromlive parts when the Circuit Breaker is PositionTest PositionDisconnected PositionTrue Two-step Stored Energy MechanismThe closing time is less than five cycles. The Circuit Breaker is operated via a stored-energymechanism which can be manually or motor charged. Closing and opening operations can be initiatedeither from the local push buttons on the Circuit Breaker front face or by remote C O cycle is possible without for No Circuit Breaker has fewer parts (by a factor of at least five) than conventional Circuit breakerswhile performing the same functions.

7 This leads to greatly enhanced reliability and reduction inmaintenance. Under normal operating conditions, according to standards and controlled by tests, thecircuit Breaker does not require Exceeds Standards with an Easy and Reduced MaintenanceIt is easy to remove the arc chutes and visually inspect the contacts and wear indicator. The operationcounter (spring-charging motor option) can also indicate when inspections and possible maintenanceshould be done. After operating conditions exceeding those given by standards, it is possible toextend the Circuit Breaker life by:nReplacement of arc chutes and spring charging motor by the of main contacts by an after sale service : See pages 62 63 for additional Good( Circuit Breaker Closed)Contact Worn( Circuit Breaker Closed)11/98 1995 Square D All Rights Reserved4 Front Connection of Secondary CircuitsAll accessory terminals are located on a connecting block which is accessible from the front evenwith the Circuit Breaker in the test or disconnected position.

8 This is particularly useful for fieldinspection and AccessoriesnAs the installation develops and changes, the Circuit Breaker can develop and change with accessories are field-installable, without losing the UL Listing mark, without any adjustmentand with only the aid of a uniform design of the Circuit Breaker line allows these accessories to be common for thewhole OFFM08 H2masterpactconnectedtestdisconnectedO OPEN dischargedIpush ONcircuit breaker3 pole600V 50/60 Hzframe size 2000 Asuitable for continious operationat 100% rating in a minimum cubicalspace by W21 by inchesventilation is not required NEMA interrupting ratingmax RMS sym amps Volts Amps 240 100K 480 100K 600 65 KIEC 957-2 690V 50/60 Hzinterrupting ratingIcu 380/440V 75KA 660V

9 75 KAIcu 380/440V 75KA 660V 75 KAshort time ratingIcw=75KA to resetII1I2I390%50%20%STR 58 UIr90105% I2t faulttrIm faulttmIfaultIhthtitest+ S T + I2t :Im :th :IIGLIGLLGLIG offreset Vtr601202404801530at 1, no. 54775for masterpactwith sensors In = 6000AE63335 UND. LAB. O BREAKERD oles. Issue N LM-8792000006340-503208-30 Single Design up to 6300 AAll frame sizes have been designed with the same technology featuring identical depth and doorcutouts, and common control units and 1995 Square D All Rights Reserved11/98 Advantages06313011 Disconnecting through DoorThe racking handle and racking mechanism are accessible through the front door the Circuit Breaker will therefore be possible without opening the door and givingaccess to live Function by Positive Indication of Contact StatusThe mechanical indicator is truly representative of the status of all three main CompartmentOnce the front cover has been removed to provide access to the auxiliary compartment, the maincontacts remain fully isolated.

10 Furthermore, interphase partitioning allows full insulation betweeneach pole even if the front cover has been InsulationTwo insulation barriers separate the front of the Circuit Breaker from main 1995 Square D All Rights chamber and terminal and control unit frontconnecting carriage charging shutters0631301206313013 Opush OFFMERLIN GERINMP20H1masterpactconnectedtestdiscon nectedOOPEN dischargedIpush ONcircuit breaker3 pole600V 50/60 Hzframe size 2000 Asuitable for continious operationat 100% rating in a minimum cubicalspace by W21 by inchesventilation is not