5925-01-253-5726, CIRCUIT BREAKER

National Stock Number:
5925-01-253-5726

Federal Supply Class:
5925

National Item Identification Number:
012535726

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:

AM2-Z21-127

74193

EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV

Techincal Specification:

ACTUATOR FUNCTION	TRIP-RESET
ACTUATOR POSITION DESIGNATION	AT EACH POLE
ARC QUENCHING METHOD	MAGNETIC BLOWOUTMAGNETIC BLOWOUT
BODY LENGTH	2.490 INCHES MINIMUM AND 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM2.510 INCHES MAXIMUM
BODY STYLE	MULTIPOLE-MULTIPLE ACTUATOR TYPEMULTIPOLE-MULTIPLE ACTUATOR TYPE
BODY WIDTH	1.490 INCHES MINIMUM AND 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM1.510 INCHES MAXIMUM
BOSS HEIGHT	0.130 INCHES MINIMUM AND 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM0.150 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	0.740 INCHES MINIMUM AND 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM0.760 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	1.928 INCHES MINIMUM AND 1.928 INCHES MINIMUM AND 1.948 INCHES MAXIMUM1.948 INCHES MAXIMUM
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	2.052 INCHES MINIMUM AND 2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM2.072 INCHES MAXIMUM
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH	0.740 INCHES MINIMUM AND 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM0.760 INCHES MAXIMUM
EXTERNAL ACTUATOR LINKAGE ARRANGEMENT	ONE AND TWO LINKED
FRAGILITY FACTOR	MODERATELY RUGGEDMODERATELY RUGGED
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	DUSTPROOF
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	50.0 DC ALL LOCATIONS
MANUAL ACTUATOR TYPE AND QUANTITY	2 TOGGLE
MATERIAL	PLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	50.0 AMPERES DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	4 THREADED HOLE(S)4 THREADED HOLE(S)
MOUNTING SURFACE TO TERMINAL END DISTANCE	2.461 INCHES MINIMUM AND 2.461 INCHES MINIMUM AND 2.481 INCHES MAXIMUM2.481 INCHES MAXIMUM
NOMINAL THREAD SIZE	0.138 INCHES
POLE QUANTITY	22
RESET METHOD	MANUAL
TRIP RELEASE METHOD	MAGNETIC-HYDRAULIC ALL LOCATIONS
STORAGE TYPE	GENERAL PURPOSE WAREHOUSEGENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY	4 THREADED STUD
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	3232

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