4820-01-452-4489 PARTS KIT,SAFETY RELIEF VALVE Index 5331-01-452-4491 O-RING

National Stock Number:
5925-01-452-4490

Federal Supply Class:
5925

National Item Identification Number:
014524490

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:
UPGX-11-1-61-752-A-2181541SENSATA TECHNOLOGIES MARYLAND, INC


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT POLE TWO
BODY STYLERECTANGULAR DIMENSIONAL ENVELOPE
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
FREQUENCY IN HERTZ50.0 OR 60.0 ALL LOCATIONS
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
OVERALL HEIGHT1.515 INCHES NOMINAL
OVERALL LENGTH2.000 INCHES NOMINAL
OVERALL WIDTH1.640 INCHES MAXIMUM
MATERIALPLASTIC CASE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE7.5 AMPERES AC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS5000.0 AC AND 1000.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY4 THREADED HOLE
NOMINAL THREAD SIZE3.0 MILLIMETERS
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS277.0 AC AND 65.0 DC ALL LOCATIONS
POLE QUANTITY2
RESET METHODMANUAL
SPECIAL FEATURESRED WITH WHITE MARKING ROCKER ACTUATOR
TERMINAL TYPE AND QUANTITY4 THREADED STUD
THREAD PITCH IN MILLIMETERS4.75
THREAD SERIES DESIGNATORISO M
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT0.700 MINIMUM AT 125 PCT AND 12.000 MAXIMUM AT 125 PCT ALL LOCATIONS
TRIP RELEASE CHARACTERISTICTIME DELAY ALL LOCATIONS
TRIP RELEASE METHODMAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT125.0 ALL LOCATIONS


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