5925-00-265-9474, CIRCUIT BREAKER

National Stock Number:
5925-00-265-9474

Federal Supply Class:
5925

National Item Identification Number:
002659474

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:

15A1352-4	03956	NORTHROP GRUMMAN SYSTEMS CORPORATION
1764 697	97942	NORTHROP GRUMMAN SYSTEMS CORPORATION
5031-011	05869	RAYTHEON COMPANY
ETN4226	30086	L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.
1764697	89946	EATON CORPORATION

Techincal Specification:

ARC QUENCHING METHOD	MAGNETIC BLOWOUTMAGNETIC BLOWOUT
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONSOVERCURRENT ALL LOCATIONS
FRAGILITY FACTOR	MODERATELY RUGGEDMODERATELY RUGGED
FREQUENCY IN HERTZ	60.0 ALL LOCATIONS60.0 ALL LOCATIONS
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	GENERAL PURPOSEGENERAL PURPOSE
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREETRIP FREE
MATERIAL	PLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	25.0 AMPERES AC ALL LOCATIONS25.0 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	15000.0 AC ALL LOCATIONS15000.0 AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	4 UNTHREADED HOLE(S)4 UNTHREADED HOLE(S)
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	500.0 AC ALL LOCATIONS500.0 AC ALL LOCATIONS
POLE QUANTITY	33
RESET METHOD	MANUALMANUAL
UNTHREADED MOUNTING HOLE DIAMETER	0.281 INCHES NOMINAL0.281 INCHES NOMINAL
STORAGE TYPE	GENERAL PURPOSE WAREHOUSEGENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY	6 THREADED STUD6 THREADED STUD
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	7.500 MINIMUM AT 200 PCT AND 7.500 MINIMUM AT 200 PCT AND 60.000 MAXIMUM AT 200 PCT ALL LOCATIONS60.000 MAXIMUM AT 200 PCT ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING	25.0 CELSIUS NOMINAL ALL LOCATIONS25.0 CELSIUS NOMINAL ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	TIME DELAY ALL LOCATIONSTIME DELAY ALL LOCATIONS
TRIP RELEASE METHOD	THERMAL-MAGNETIC ALL LOCATIONSTHERMAL-MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	125.0 ALL LOCATIONS125.0 ALL LOCATIONS

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