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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
FREQ FREQUENCY IN HERTZ 400.0 ALL LOCATIONS
CPSM INTERNAL TRIP RELEASE CONFIGURATION SERIES TRIP ALL LOCATIONS
BBRG STORAGE TYPE GENERAL PURPOSE WAREHOUSE
PKWT UNPACKAGED UNIT WEIGHT 100.0 GRAMS
ADAT BODY WIDTH 1.250 INCHES MINIMUM AND 1.281 INCHES MAXIMUM
AKPX POLE QUANTITY 2
THSD THREAD SERIES DESIGNATOR UNEF
ABXD BUSHING LENGTH 0.332 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
CPRX ACTUATOR POSITION DESIGNATION BETWEEN POLE ONE AND TWO
CPRG MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 300.0 AC ALL LOCATIONS AND 500.0 DC ALL LOCATIONS
CPRR MAIN CONTACT TRIPPING MECHANISM TYPE TRIP FREE
CQJX NOMINAL THREAD SIZE 0.375 INCHES
CPRL TRIP RELEASE CHARACTERISTIC TIME DELAY ALL LOCATIONS
CPRF OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 240.0 AC ALL LOCATIONS AND 50.0 DC ALL LOCATIONS
AAJE THREAD PITCH DIAMETERS +0.3503/+0.3537 INCHES
AEBP CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM
CQWN TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT 0.500 MINIMUM AT 200 PCT ALL LOCATIONS AND 9.000 MAXIMUM AT 200 PCT ALL LOCATIONS
CPRQ RESET METHOD MANUAL
ADAQ BODY LENGTH 1.531 INCHES MINIMUM AND 1.562 INCHES MAXIMUM
TTQY TERMINAL TYPE AND QUANTITY 4 WIRE HOOK
CQXF INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED FUNGUS RESISTANT AND HERMETICALLY SEALED
CPRJ TRIP RELEASE METHOD MAGNETIC ALL LOCATIONS
ZZZK SPECIFICATION/STANDARD DATA 81349-MIL-C-39019/3 GOVERNMENT SPECIFICATION
CPRW ACTUATOR FUNCTION TRIP-RESET
AJWX MOUNTING SURFACE TO TERMINAL END DISTANCE 1.797 INCHES MINIMUM AND 1.828 INCHES MAXIMUM
AEBQ CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
ADTV CASE MATERIAL METAL
CPRH CIRCUIT PROTECTION TYPE OVERCURRENT ALL LOCATIONS
TEST TEST DATA DOCUMENT 81349-MIL-C-39019 SPECIFICATION
CPRT MANUAL ACTUATOR TYPE AND QUANTITY 1 TOGGLE
AXHR MOUNTING FACILITY TYPE AND QUANTITY 1 THREADED BUSHING W/PANEL SEAL
CPLM MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 5.0 AMPERES AC ALL LOCATIONS AND 5.0 AMPERES DC ALL LOCATIONS
AAQL BODY STYLE MULTIPOLE-SINGLE ACTUATOR TYPE
CMLP THREAD QUANTITY PER INCH 32
CPRN ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT 115.0 ALL LOCATIONS

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