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Part Number

Part Number:
NSN:
NIIN:
Item Name:
CIRCUIT BREAKER

Definition:

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.

CAGE Information

Code Company
81349 MILITARY SPECIFICATIONS PROMULGATED

Federal Supply Class

Title

CIRCUIT BREAKERS

Inclusions:

INCLUDES CIRCUIT BREAKERS AND CUTOUTS.

Exclusions:

EXCLUDES RELAYS.

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ADAQ BODY LENGTH 22.000 INCHES MAXIMUM
FREQ FREQUENCY IN HERTZ 60.0 SINGLE LOCATION
AJWX MOUNTING SURFACE TO TERMINAL END DISTANCE 11.875 INCHES NOMINAL
AKPX POLE QUANTITY 3
ADAT BODY WIDTH 9.000 INCHES MAXIMUM
CPRH CIRCUIT PROTECTION TYPE UNDERVOLTAGE SINGLE LOCATION
CPRG MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 30000.0 AC SINGLE LOCATION AND 20000.0 DC SINGLE LOCATION
CPRQ RESET METHOD AUTOMATIC AND MANUAL
AEBY DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH 20.750 INCHES NOMINAL
AEBP CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 17.500 INCHES NOMINAL
CQXF INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED ARC RESISTANT
CPRF OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 500.0 AC SINGLE LOCATION AND 250.0 DC SINGLE LOCATION
CPLM MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 600.0 AMPERES AC SINGLE LOCATION AND 600.0 AMPERES DC SINGLE LOCATION
AAQL BODY STYLE MULTIPOLE-SINGLE ACTUATOR TYPE

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