5925-00-918-1474, CIRCUIT BREAKER

National Stock Number:
5925-00-918-1474

Federal Supply Class:
5925

National Item Identification Number:
009181474

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:

AM12MG3-7-5-77

74193

EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV

Techincal Specification:

ACTUATOR FUNCTION	RESET
ARC QUENCHING METHOD	MAGNETIC BLOWOUT
CIRCUIT PROTECTION TYPE	OVERCURRENT SINGLE LOCATION
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	2.062 INCHES NOMINAL
FREQUENCY IN HERTZ	60.0 SINGLE LOCATION
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	EXPLOSION PROOF AND FUNGUS RESISTANT AND MOISTURE RESISTANT
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
OVERALL HEIGHT	2.530 INCHES NOMINAL
OVERALL LENGTH	3.330 INCHES NOMINAL
OVERALL WIDTH	0.760 INCHES NOMINAL
MATERIAL	PLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	7.5 AMPERES AC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	1000.0 AC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED HOLE(S)
NOMINAL THREAD SIZE	0.138 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	250.0 AC SINGLE LOCATION
POLE QUANTITY	1
RESET METHOD	MANUAL
TERMINAL TYPE AND QUANTITY	2 THREADED STUD
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	0.600 MINIMUM AT 150 PCT AND 2.000 MAXIMUM AT 150 PCT AND 0.250 MINIMUM AT 200 PCT AND 0.800 MAXIMUM AT 200 PCT AND 0.090 MINIMUM AT 300 PCT AND 0.190 MAXIMUM AT 300 PCT SINGLE LOCATION
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS AND TIME DELAY SINGLE LOCATION
TRIP RELEASE METHOD	MAGNETIC SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	125.0 SINGLE LOCATION

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