5925-01-035-6738 CIRCUIT BREAKER Index 5925-01-035-6740 CIRCUIT BREAKER

National Stock Number:
5925-01-035-6739

Federal Supply Class:
5925

National Item Identification Number:
010356739

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:
ST86D17-104236LOCKHEED MARTIN CORP
THQB3210060969GENERAL ELECTRIC CO ELECTRICAL DISTRIBUTION AND CONTROL
THQB3210093351GENERAL ELECTRIC CO DISTRIBUTION EQUIPMENT DIV SEATTLE PLANT


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT EACH POLE
ARC QUENCHING METHODMAGNETIC BLOWOUT
BODY HEIGHT2.330 INCHES MINIMUM AND 2.390 INCHES MAXIMUM
BODY LENGTH3.250 INCHES MINIMUM AND 3.310 INCHES MAXIMUM
BODY STYLEMULTIPOLE-MULTIPLE ACTUATOR TYPE
BODY WIDTH2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM
BOSS HEIGHT0.150 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
CASE MATERIALPLASTIC
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH0.984 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
CRITICALITY CODE JUSTIFICATIONFEAT
EXTERNAL ACTUATOR LINKAGE ARRANGEMENTONE, TWO, AND THREE LINKED
FREQUENCY IN HERTZ60.0 ALL LOCATIONS
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDGENERAL PURPOSE
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS240.0 AC ALL LOCATIONS
MANUAL ACTUATOR TYPE AND QUANTITY3 TOGGLE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE100.0 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS10000.0 AC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY3 TERMINAL
POLE QUANTITY3
RESET METHODMANUAL
SPECIAL FEATURESMISSILE,MX PEACEKEEPER WEAPONS SYSTEM
STORAGE TYPEGENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY3 COMPRESSION AND 3 TAB, SOLDER LUG
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT20.800 MINIMUM AT 200 PCT AND 120.000 MAXIMUM AT 200 PCT ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING40.0 CELSIUS NOMINAL ALL LOCATIONS
TRIP RELEASE CHARACTERISTICINSTANTANEOUS AND TIME DELAY ALL LOCATIONS
TRIP RELEASE METHODTHERMAL-MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT125.0 ALL LOCATIONS


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