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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
79500 WESTINGHOUSE ELECTRIC CORP

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 60.0 SINGLE LOCATION
FREQ FREQUENCY IN HERTZ 60.0 SINGLE LOCATION
CPRH CIRCUIT PROTECTION TYPE OVERCURRENT SINGLE LOCATION
TTQY TERMINAL TYPE AND QUANTITY 2 SCREW
CPRF OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 125.0 AC SINGLE LOCATION
CPRG MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 5000.0 AC SINGLE LOCATION
CPRR MAIN CONTACT TRIPPING MECHANISM TYPE TRIP FREE
CPRN ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT 120.0 SINGLE LOCATION
CPLM MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 20.0 AMPERES AC SINGLE LOCATION
ADTV CASE MATERIAL PLASTIC
AKPX POLE QUANTITY 1
CPRQ RESET METHOD MANUAL
ABTD MOUNTING SLOT WIDTH 0.500 INCHES NOMINAL
CQWN TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT 48.000 NOMINAL AT 200 PCT SINGLE LOCATION
CPRW ACTUATOR FUNCTION TRIP-RESET
CPRX ACTUATOR POSITION DESIGNATION AT POLE ONE
CPRJ TRIP RELEASE METHOD THERMAL-MAGNETIC SINGLE LOCATION
AXHR MOUNTING FACILITY TYPE AND QUANTITY 2 SLOT
CPRT MANUAL ACTUATOR TYPE AND QUANTITY 1 TOGGLE
CPRL TRIP RELEASE CHARACTERISTIC TIME DELAY SINGLE LOCATION
CRCF TRIP RELEASE AMBIENT TEMP RATING 25.0 DEG CELSIUS NOMINAL SINGLE LOCATION

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