5925-00-938-3446 CIRCUIT BREAKER Index 5935-00-938-3449 CONNECTOR,PLUG,ELECTRICAL

National Stock Number:
5925-00-938-3447

Federal Supply Class:
5925

National Item Identification Number:
009383447

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:
ET74417ETN273230086L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.
ET744530086L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.
ETN2732ET7441730086L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.
ETN2754ANDETN273230086L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT POLE TWO
ADJUSTABLE TRIP SETTING CURRENT RANGE PER POLE IN AMPS+600.0 TO 1300.0 AC ALL LOCATIONS
ARC QUENCHING METHODMAGNETIC BLOWOUT
BODY STYLERECTANGULAR DIMENSIONAL ENVELOPE
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
FEATURES PROVIDEDADJUSTABLE TRIP RELEASE
FRAGILITY FACTORMODERATELY RUGGED
FREQUENCY IN HERTZ60.0 ALL LOCATIONS
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDFUNGUS RESISTANT AND MOISTURE RESISTANT AND SHOCK RESISTANT
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY1 TOGGLE
OVERALL HEIGHT4.125 INCHES NOMINAL
OVERALL LENGTH6.500 INCHES NOMINAL
OVERALL WIDTH4.875 INCHES NOMINAL
MATERIALPLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE100.0 AMPERES AC AND 100.0 AMPERES DC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS15000.0 AC AND 10000.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY4 THREADED HOLE
NOMINAL THREAD SIZE0.190 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS500.0 AC AND 250.0 DC ALL LOCATIONS
POLE QUANTITY3
PRECIOUS MATERIAL AND LOCATIONMAIN CONTACTS SILVER
PRECIOUS MATERIALSILVER
RESET METHODMANUAL
SPECIAL FEATURESENT2732 IS A FACTORY INSTALLED SHUNT TRIP UNIT WITH AUXILIARY SWITCH; RATED VOLTAGE 120 VDC; RATED CURRENT 100 AMPS
STORAGE TYPEGENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY6 COMPRESSION
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32
TRIP RELEASE AMBIENT TEMP RATING50.0 CELSIUS NOMINAL ALL LOCATIONS
TRIP RELEASE CHARACTERISTICINSTANTANEOUS 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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