5925-00-681-6077 CIRCUIT BREAKER Index 5365-00-681-6079 BUSHING,NONMETALLIC

National Stock Number:
5925-00-681-6078

Federal Supply Class:
5925

National Item Identification Number:
006816078

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:
153239479500WESTINGHOUSE ELECTRIC CORP
819591118876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
BODY STYLERECTANGULAR DIMENSIONAL ENVELOPE
CASE MATERIALPLASTIC
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
FREQUENCY IN HERTZ60.0 ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS240.0 AC AND 250.0 DC ALL LOCATIONS
OVERALL HEIGHT3.969 INCHES NOMINAL
OVERALL LENGTH6.000 INCHES NOMINAL
OVERALL WIDTH4.125 INCHES NOMINAL
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE30.0 AMPERES AC AND 30.0 AMPERES DC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS7500.0 AC AND 5000.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY6 UNTHREADED HOLE
POLE QUANTITY3
RESET METHODMANUAL
TERMINAL TYPE AND QUANTITY6 SCREW
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT175.000 NOMINAL AT 125 PCT AND 27.000 NOMINAL AT 200 PCT AND 9.000 NOMINAL AT 300 PCT ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING25.0 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 PERCENT125.0 ALL LOCATIONS
UNTHREADED MOUNTING HOLE DIAMETER0.188 INCHES NOMINAL


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