5925-01-020-3678, CIRCUIT BREAKER

5905-01-020-3677 RESISTOR,VARIABLE,WIRE WOUND,PRE

National Stock Number:
5925-01-020-3678

Federal Supply Class:
5925

National Item Identification Number:
010203678

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:

126-153	09150	AMPEX DATA SYSTEMS CORP COMPUTER PRODUCTS DIV
SM333-10-350-400-1	74193	EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV

Techincal Specification:

ACTUATOR FUNCTION	TRIP-RESET
ACTUATOR POSITION DESIGNATION	AT POLE TWO
ARC QUENCHING METHOD	MAGNETIC BLOWOUT
BODY LENGTH	1.495 INCHES NOMINAL
BODY STYLE	MULTIPOLE-SINGLE ACTUATOR TYPE
BODY WIDTH	1.872 INCHES NOMINAL
BUSHING LENGTH	0.375 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	0.875 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	0.625 INCHES NOMINAL
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
FRAGILITY FACTOR	MODERATELY RUGGED
FREQUENCY IN HERTZ	400.0 ALL LOCATIONS
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	350.0 AC ALL LOCATIONS
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	10.0 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	300.0 AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY	1 THREADED BUSHING W/PANEL SEAL
MOUNTING SURFACE TO TERMINAL END DISTANCE	1.678 INCHES NOMINAL
NOMINAL THREAD SIZE	0.375 INCHES
POLE QUANTITY	3
RESET METHOD	MANUAL
SPECIAL HANDLING FEATURE	MAGNETIC
STORAGE TYPE	GENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY	6 WIRE HOOK
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNEF
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	1.000 MINIMUM AT 200 PCT AND 4.500 MAXIMUM AT 200 PCT ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	TIME DELAY ALL LOCATIONS
TRIP RELEASE METHOD	MAGNETIC-HYDRAULIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	150.0 ALL LOCATIONS

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