5925-01-056-0995, CIRCUIT BREAKER

National Stock Number:
5925-01-056-0995

Federal Supply Class:
5925

National Item Identification Number:
010560995

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:

SM-A-776904-7

80063

US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR

Techincal Specification:

BODY STYLE	RECTANGULAR DIMENSIONAL ENVELOPE
BUSHING LENGTH	0.380 INCHES NOMINAL
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
FREQUENCY IN HERTZ	60.0 ALL LOCATIONS
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	240.0 AC ALL LOCATIONS
OVERALL HEIGHT	1.250 INCHES NOMINAL
OVERALL LENGTH	1.780 INCHES NOMINAL
OVERALL WIDTH	1.500 INCHES NOMINAL
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
MATERIAL	MICA CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	18.0 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	90.0 AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED HOLE(S)
NOMINAL THREAD SIZE	0.250 INCHES
POLE QUANTITY	2
RESET METHOD	MANUAL
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS ALL LOCATIONS
TRIP RELEASE METHOD	MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	150.0 ALL LOCATIONS
ULTIMATE TRIP TIME PER POLE IN SECONDS	1.000 NOMINAL ALL LOCATIONS
TERMINAL TYPE AND QUANTITY	2 WIRE HOOK
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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