5925-01-511-0217, CIRCUIT BREAKER

National Stock Number:
5925-01-511-0217

Federal Supply Class:
5925

National Item Identification Number:
015110217

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:

1244C56G07	89946	EATON CORPORATION
324-7067933-045	53711	NAVAL SEA SYSTEMS COMMAND
7067933	53711	NAVAL SEA SYSTEMS COMMAND
MIL-C-17361	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
H733-1201-045	96169	ELECTRIC BOAT CORPORATION

Techincal Specification:

BODY HEIGHT	3.375 INCHES NOMINAL
BODY LENGTH	4.125 INCHES NOMINAL
BODY STYLE	MULTIPOLE-SINGLE ACTUATOR TYPE
BODY WIDTH	3.343 INCHES NOMINAL
BOSS HEIGHT	0.125 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	2.625 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	1.125 INCHES NOMINAL
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH	2.937 INCHES NOMINAL
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	0.625 INCHES NOMINAL
FREQUENCY IN HERTZ	60.0 ALL LOCATIONS
PART NAME ASSIGNED BY CONTROLLING AGENCY	CIRCUIT BREAKER
MATERIAL	PLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	50.0 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	5000.0 AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	2 THREADED HOLE AND 6 CLIP
NOMINAL THREAD SIZE	0.216 INCHES
NONDEFINITIVE SPEC/STD DATA	AQB-A51 TYPE AND NQB-A51 TYPE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	500.0 AC ALL LOCATIONS
POLE QUANTITY	3
RESET METHOD	MANUAL
SPECIFICATION/STANDARD DATA	81349-MIL-C-17361/1A GOVERNMENT SPECIFICATION
SPECIAL FEATURES	THE AQB-A51 IS A FORM, FIT AND FUNCTION REPLACEMENT FOR THE AQB-A50 CIRCUIT BREAKER WITH ENHANCED OVERCURRENT PROTECTION FEATURES
TERMINAL TYPE AND QUANTITY	6 CLIP
THREAD SERIES DESIGNATOR	UNC
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS ALL LOCATIONS

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