5925-01-267-1051 CIRCUIT BREAKER Index 5925-01-267-1053 CIRCUIT BREAKER

National Stock Number:
5925-01-267-1052

Federal Supply Class:
5925

National Item Identification Number:
012671052

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:
M55629/20NM81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-C-55629/2081349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-PRF-55629/2081349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT POLE ONE
ARC QUENCHING METHODMAGNETIC BLOWOUT
AUXILIARY SWITCH FUNCTION AND QUANTITY1 ALARM
BODY LENGTH1.969 INCHES MINIMUM AND 2.031 INCHES MAXIMUM
BODY STYLESINGLE POLE TYPE
BODY WIDTH0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
BUSHING LENGTH0.464 INCHES MINIMUM AND 0.526 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH1.499 INCHES MINIMUM AND 1.561 INCHES MAXIMUM
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
FRAGILITY FACTORMODERATELY RUGGED
FREQUENCY IN HERTZ60.0 SINGLE LOCATION
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDFUNGUS RESISTANT
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP SINGLE LOCATION
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY1 TOGGLE
MATERIALPLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE10.0 AMPERES AC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS1000.0 AC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED BUSHING W/PANEL SEAL
MOUNTING SURFACE TO TERMINAL END DISTANCE2.232 INCHES MAXIMUM
NOMINAL THREAD SIZE0.500 INCHES
NONTURN DEVICE DIAMETER0.138 INCHES NOMINAL
NONTURN DEVICE LENGTH0.115 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
NONTURN DEVICE RADIUS0.641 INCHES MINIMUM AND 0.671 INCHES MAXIMUM
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS240.0 AC SINGLE LOCATION
POLE QUANTITY1
RESET METHODMANUAL
SPECIAL HANDLING FEATUREMAGNETIC
SPECIFICATION/STANDARD DATA81349-MIL-C-55629/20 GOVERNMENT SPECIFICATION
STORAGE TYPEGENERAL PURPOSE WAREHOUSE
SWITCH CONTACT ARRANGEMENTSINGLE POLE, DOUBLE THROW
SWITCH CURRENT RATING AND TYPE IN AMPS10.0 AC AND 2.0 DC
SWITCH LOCATION AND POSITION DESIGNATIONINTERNAL AT POLE ONE
SWITCH TERMINAL TYPETAB, SOLDER LUG
SWITCH VOLTAGE RATING AND TYPE IN VOLTS250.0 AC AND 50.0 DC
TERMINAL TYPE AND QUANTITY2 TAB W/SCREW
TEST DATA DOCUMENT81349-MIL-C-55629 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUN
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT3.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
TRIP RELEASE METHODMAGNETIC SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT125.0 SINGLE LOCATION


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