5925-00-810-4912, CIRCUIT BREAKER

National Stock Number:
5925-00-810-4912

Federal Supply Class:
5925

National Item Identification Number:
008104912

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:

EE2B040	30086	L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.
ET1564	30086	L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.

Techincal Specification:

ACTUATOR FUNCTION	TRIP-RESET
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
OVERALL LENGTH	6.000 INCHES NOMINAL
OVERALL WIDTH	3.000 INCHES NOMINAL
MATERIAL	PLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	40.0 AMPERES AC AND 40.0 AMPERES DC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	5000.0 AC AND 5000.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED HOLE(S)
NOMINAL THREAD SIZE	0.138 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	240.0 AC AND 250.0 DC ALL LOCATIONS
OVERALL HEIGHT	3.812 INCHES NOMINAL
POLE QUANTITY	2
RESET METHOD	MANUAL
SPECIAL FEATURES	MTG HOLES SPACED 4.844 IN. C TO C
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	32
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	300.000 NOMINAL AT 150 PCT AND 60.000 NOMINAL AT 200 PCT AND 5.000 NOMINAL AT 500 PCT ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING	25.0 CELSIUS NOMINAL ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS AND TIME DELAY ALL LOCATIONS
TRIP RELEASE METHOD	THERMAL ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	150.0 ALL LOCATIONS
ULTIMATE TRIP TIME PER POLE IN SECONDS	300.000 NOMINAL ALL LOCATIONS

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