5925-01-281-3040 CIRCUIT BREAKER Index 5330-01-281-3042 PACKING,PREFORMED

National Stock Number:
5925-01-281-3041

Federal Supply Class:
5925

National Item Identification Number:
012813041

Description:
CIRCUIT BREAKER

Detail:
A DEVICE WITH MEANS OTHER THAN FUSES FOR AUTOMATICALLY OPENING THE CIRCUIT IN WHICH IT IS INSTALLED WHEN THE CURRENT VARIES FROM THE PREDETERMINED VALUE FOR WHICH THE DEVICE IS SET. MAY INCLUDE PROVISIONS FOR MANUAL OPERATION. AT LEAST ONE SET OF CONTACTS MUST BE IN SERIES WITH THE ACTUATING ELEMENT(S). A COMBINATION OF SEMICONDUCTOR AND PASSIVE DEVICES MAY BE USED IN LIEU OF CONTACTS. FOR AUTOMATICALLY OPERATED ITEMS IN WHICH THE ACTUATING (TRIPPING) ELEMENT AND CONTACTS ARE NOT IN SERIES, SEE RELAY (AS MODIFIED). FOR ITEMS WHICH ARE OPERATED BOTH MANUALLY AND AUTOMATICALLY BUT THE ACTUATING ELEMENTS AND CONTACT ARE NOT IN SERIES, SEE RELAY-SWITCH. EXCLUDES CIRCUIT BREAKER BOX AND MAGNETO "BREAKER" ASSEMBLIES. SEE ALSO SWITCH (AS MODIFIED); AND CONTROLLER.


Manufacturer Information:
4520391G1779500WESTINGHOUSE ELECTRIC CORP
452D391G1765054WESTINGHOUSE ELECTRIC CORP POWER GENERATION-GENERATOR DIV


Techincal Specification:
BODY LENGTH10.156 INCHES NOMINAL
BODY STYLEMULTIPOLE-SINGLE ACTUATOR TYPE
BODY WIDTH4.937 INCHES NOMINAL
BOSS HEIGHT0.187 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH3.250 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH8.750 INCHES NOMINAL
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH8.750 INCHES NOMINAL
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH1.625 INCHES NOMINAL
FREQUENCY IN HERTZ60.0 ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS500.0 AC ALL LOCATIONS
OVERALL HEIGHT9.826 INCHES NOMINAL
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE15.0 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS210.0 AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY2 SLOT AND 4 UNTHREADED HOLE
MOUNTING SLOT WIDTH1.125 INCHES NOMINAL
POLE QUANTITY3
RESET METHODMANUAL
SPECIAL FEATURESCURRENT LIMITER FUSE UNIT
TERMINAL TYPE AND QUANTITY3 THREADED STUD
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT25.000 MINIMUM AT 600 PCT AND 3600.000 MAXIMUM AT 130 PCT ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING50.0 CELSIUS NOMINAL ALL LOCATIONS
TRIP RELEASE CHARACTERISTICINSTANTANEOUS AND TIME DELAY ALL LOCATIONS
TRIP RELEASE METHODTHERMAL-MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT130.0 ALL LOCATIONS
ULTIMATE TRIP TIME PER POLE IN SECONDS10.000 NOMINAL ALL LOCATIONS
UNTHREADED MOUNTING HOLE DIAMETER0.875 INCHES NOMINAL


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