Part Number
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 |
|---|---|
| 18876 | U S ARMY AVIATION AND MISSILE COMMAN |
Federal Supply Class
Title
CIRCUIT BREAKERS
Inclusions:
INCLUDES CIRCUIT BREAKERS AND CUTOUTS.
Exclusions:
EXCLUDES RELAYS.
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AEHA | DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH | 2.720 INCHES MINIMUM AND 2.780 INCHES MAXIMUM |
| BBRJ | SPECIAL HANDLING FEATURE | MAGNETIC |
| ADAQ | BODY LENGTH | 15.470 INCHES MINIMUM AND 15.530 INCHES MAXIMUM |
| AXHR | MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE |
| CSWP | SWITCH VOLTAGE RATING AND TYPE IN VOLTS | 600.0 AC AND 125.0 DC |
| FREQ | FREQUENCY IN HERTZ | 60.0 ALL LOCATIONS |
| AJEC | BOSS HEIGHT | 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
| PRMT | PRECIOUS MATERIAL | SILVER |
| BBRG | STORAGE TYPE | GENERAL PURPOSE WAREHOUSE |
| CPRX | ACTUATOR POSITION DESIGNATION | AT POLE TWO |
| CPRF | OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS | 600.0 AC ALL LOCATIONS AND 125.0 DC ALL LOCATIONS |
| AKPX | POLE QUANTITY | 3 |
| AFJN | FRAGILITY FACTOR | MODERATELY RUGGED |
| CQXF | INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED | HERMETICALLY SEALED AND WEATHERPROOF |
| CPRZ | AUXILIARY SWITCH FUNCTION AND QUANTITY | 1 CONTROL |
| CPRG | MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS | 25000.0 AC ALL LOCATIONS AND 65000.0 DC ALL LOCATIONS |
| CPRR | MAIN CONTACT TRIPPING MECHANISM TYPE | TRIP FREE |
| CPRL | TRIP RELEASE CHARACTERISTIC | INSTANTANEOUS ALL LOCATIONS |
| AEBY | DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH | 14.220 INCHES MINIMUM AND 14.280 INCHES MAXIMUM |
| PMLC | PRECIOUS MATERIAL AND LOCATION | CONTACTS SILVER |
| CBBL | FEATURES PROVIDED | ADJUSTABLE TRIP RELEASE |
| CPSF | ADJUSTABLE TRIP SETTING CURRENT RANGE PER POLE IN AMPS | +2100.0/+7000.0 AC ALL LOCATIONS AND +2100.0/+7000.0 DC ALL LOCATIONS |
| CRCF | TRIP RELEASE AMBIENT TEMP RATING | 40.0 DEG CELSIUS NOMINAL ALL LOCATIONS |
| CPRQ | RESET METHOD | MANUAL |
| CSSX | SWITCH CURRENT RATING AND TYPE IN AMPS | 6.0 AC AND 0.5 DC |
| AEBP | CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH | 11.590 INCHES MINIMUM AND 11.650 INCHES MAXIMUM |
| AEBV | UNTHREADED MOUNTING HOLE DIAMETER | 0.340 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
| CPRJ | TRIP RELEASE METHOD | THERMAL-MAGNETIC ALL LOCATIONS |
| CPRN | ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT | 125.0 ALL LOCATIONS |
| CQSM | SWITCH LOCATION AND POSITION DESIGNATION | INTERNAL AT POLE THREE |
| CPLM | MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE | 700.0 AMPERES AC ALL LOCATIONS AND 700.0 AMPERES DC ALL LOCATIONS |
| CPRW | ACTUATOR FUNCTION | TRIP-RESET |
| APNQ | ARC QUENCHING METHOD | MAGNETIC BLOWOUT |
| ADTV | CASE MATERIAL | METAL |
| CPRH | CIRCUIT PROTECTION TYPE | OVERCURRENT ALL LOCATIONS |
| TTQY | TERMINAL TYPE AND QUANTITY | 6 THREADED STUD |
| ADAT | BODY WIDTH | 8.220 INCHES MINIMUM AND 8.280 INCHES MAXIMUM |
| AEBQ | CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH | 2.720 INCHES MINIMUM AND 2.780 INCHES MAXIMUM |
| AJWX | MOUNTING SURFACE TO TERMINAL END DISTANCE | 10.970 INCHES MINIMUM AND 11.030 INCHES MAXIMUM |
| CPRT | MANUAL ACTUATOR TYPE AND QUANTITY | 1 TOGGLE |
| AEGJ | SWITCH CONTACT ARRANGEMENT | DOUBLE POLE, DOUBLE THROW |
| CRTK | SWITCH TERMINAL TYPE | WIRE LEAD |
| AAQL | BODY STYLE | MULTIPOLE-SINGLE ACTUATOR TYPE |