5925-01-122-4740, CIRCUIT BREAKER

National Stock Number:
5925-01-122-4740

Federal Supply Class:
5925

National Item Identification Number:
011224740

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:

APL-11-1-50-103	81541	SENSATA TECHNOLOGIES MARYLAND, INC
APL-11-4088-6	81541	SENSATA TECHNOLOGIES MARYLAND, INC
SM-C-739863-6	80063	US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR

Techincal Specification:

POLE QUANTITY	2
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	10.0 AMPERES DC ALL LOCATIONS
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
TERMINAL TYPE AND QUANTITY	4 THREADED STUD
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	50.0 DC ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS ALL LOCATIONS
RESET METHOD	MANUAL
BODY STYLE	MULTIPOLE-MULTIPLE ACTUATOR TYPE
MOUNTING FACILITY TYPE AND QUANTITY	4 THREADED HOLE
CASE MATERIAL	PLASTIC
UNPACKAGED UNIT WEIGHT	4.700 OUNCES NOMINAL
TRIP RELEASE METHOD	MAGNETIC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	1000.0 DC ALL LOCATIONS
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	150.0 ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
BODY LENGTH	2.480 INCHES MINIMUM AND
	2.500 INCHES MAXIMUM
BODY WIDTH	1.500 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	1.940 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	0.750 INCHES NOMINAL
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	2.050 INCHES MINIMUM AND
	2.070 INCHES MAXIMUM
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH	0.750 INCHES NOMINAL
BOSS HEIGHT	0.150 INCHES NOMINAL
MOUNTING SURFACE TO TERMINAL END DISTANCE	2.475 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD SIZE	0.138 INCHES
THREAD QUANTITY PER INCH	32
THREAD PITCH DIAMETERS	0.1177 TO 0.1214 INCHES
MANUAL ACTUATOR TYPE AND QUANTITY	2 TOGGLE
ACTUATOR FUNCTION	TRIP-RESET
ACTUATOR POSITION DESIGNATION	AT EACH POLE
EXTERNAL ACTUATOR LINKAGE ARRANGEMENT	ONE AND TWO LINKED
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	CORROSION RESISTANT AND
	MOISTURE RESISTANT AND
	SHOCKPROOF AND
	VIBRATIONPROOF AND
	FUNGUS RESISTANT
ARC QUENCHING METHOD	MAGNETIC BLOWOUT
STORAGE TYPE	GENERAL PURPOSE WAREHOUSE
SPECIAL HANDLING FEATURE	MAGNETIC
FRAGILITY FACTOR	MODERATELY RUGGED

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