5925-00-159-0288 CIRCUIT BREAKER Index 5925-00-159-0296 CIRCUIT BREAKER

National Stock Number:
5925-00-159-0289

Federal Supply Class:
5925

National Item Identification Number:
001590289

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:
99900565054WESTINGHOUSE ELECTRIC CORP POWER GENERATION-GENERATOR DIV
99900579500WESTINGHOUSE ELECTRIC CORP
99900590099NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
ACTUATOR FUNCTIONTRIP W/SEPARATE RESET
ARC QUENCHING METHODDEION
CASE MATERIALPLASTIC
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
NOMINAL THREAD SIZE0.187 INCHES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS125.0 AC AND 125.0 DC SINGLE LOCATION
OVERALL HEIGHT1.375 INCHES NOMINAL
OVERALL LENGTH6.000 INCHES NOMINAL
OVERALL WIDTH3.969 INCHES NOMINAL
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY1 TOGGLE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE35.0 AMPERES AC AND 35.0 AMPERES DC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE
RESET METHODMANUAL
POLE QUANTITY1
SPECIAL FEATURESMTG HOLES DIAGONALLY SPACED ON 4.844 IN. BY 0.812 IN. MTG CENTERS
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT170.000 MINIMUM AT 125 PCT AND 3600.000 MAXIMUM AT 125 PCT AND 17.000 MINIMUM AT 200 PCT AND 58.000 MAXIMUM AT 200 PCT AND 7.000 MINIMUM AT 300 PCT AND 18.000 MAXIMUM AT 300 PCT SINGLE LOCATION
TRIP RELEASE AMBIENT TEMP RATING25.0 DEG CELSIUS NOMINAL SINGLE LOCATION
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
TRIP RELEASE METHODTHERMAL-MAGNETIC SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT122.0 SINGLE LOCATION
TERMINAL TYPE AND QUANTITY2 SCREW


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