5905-00-448-2251 RESISTOR,VARIABLE,WIRE WOUND,PRE Index 5910-00-448-2257 CAPACITOR,FIXED,MICA DIELECTRIC

National Stock Number:
5925-00-448-2252

Federal Supply Class:
5925

National Item Identification Number:
004482252

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:
10-30460-7582918THE BOEING COMPANY


Techincal Specification:
ACTUATOR FUNCTIONTRIP-RESET
ACTUATOR POSITION DESIGNATIONAT POLE ONE
BODY LENGTH2.189 INCHES MAXIMUM
BODY STYLESINGLE POLE TYPE
BODY WIDTH0.760 INCHES MAXIMUM
BUSHING LENGTH0.468 INCHES NOMINAL
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH1.810 INCHES NOMINAL
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP SINGLE LOCATION
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY1 PUSH-PULL
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE75.0 AMPERES DC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS6000.0 DC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY2 THREADED HOLE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS30.0 DC SINGLE LOCATION
POLE QUANTITY1
RESET METHODMANUAL
TRIP RELEASE AMBIENT TEMP RATING77.0 FAHRENHEIT NOMINAL SINGLE LOCATION
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
TRIP RELEASE METHODTHERMAL SINGLE LOCATION
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT24.000 MINIMUM AT 200 PCT AND 70.000 MAXIMUM AT 200 PCT AND 3.300 MINIMUM AT 400 PCT AND 12.000 MAXIMUM AT 400 PCT SINGLE LOCATION


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