5925-01-048-1012, CIRCUIT BREAKER

National Stock Number:
5925-01-048-1012

Federal Supply Class:
5925

National Item Identification Number:
010481012

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:

AM12-2-28-DC-5

74193

EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV

Techincal Specification:

MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED HOLE
THREAD QUANTITY PER INCH	32
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	0.150 MINIMUM AT 200 PCT AND 0.550 MAXIMUM AT 200 PCT SINGLE LOCATION
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD SIZE	0.138 INCHES
BODY LENGTH	2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM
POLE QUANTITY	1
TERMINAL TYPE AND QUANTITY	2 THREADED STUD
ARC QUENCHING METHOD	MAGNETIC BLOWOUT
CIRCUIT PROTECTION TYPE	OVERCURRENT SINGLE LOCATION
CASE MATERIAL	PLASTIC
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	FUNGUS RESISTANT AND MOISTURE RESISTANT
ACTUATOR FUNCTION	TRIP-RESET
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	2.0 AMPERES DC SINGLE LOCATION
MOUNTING SURFACE TO TERMINAL END DISTANCE	2.461 INCHES MINIMUM AND 2.481 INCHES MAXIMUM
ACTUATOR POSITION DESIGNATION	AT POLE ONE
UNPACKAGED UNIT WEIGHT	4.250 OUNCES NOMINAL
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	125.0 SINGLE LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	28.0 DC SINGLE LOCATION
FRAGILITY FACTOR	MODERATELY RUGGED
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	1.928 INCHES MINIMUM AND 1.948 INCHES MAXIMUM
STORAGE TYPE	GENERAL PURPOSE WAREHOUSE
BODY WIDTH	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
TRIP RELEASE CHARACTERISTIC	TIME DELAY SINGLE LOCATION
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP SINGLE LOCATION
RESET METHOD	MANUAL
BOSS HEIGHT	0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	2000.0 DC SINGLE LOCATION
TRIP RELEASE METHOD	MAGNETIC-HYDRAULIC SINGLE LOCATION
BODY STYLE	SINGLE POLE TYPE
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE

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