5925-00-253-4241, CIRCUIT BREAKER

5905-00-253-4244 RESISTOR,VARIABLE,NONWIRE WOUND,

National Stock Number:
5925-00-253-4241

Federal Supply Class:
5925

National Item Identification Number:
002534241

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:

NB231100	21810	CHALLENGER ELECTRICAL EQUIPMENT CORP
NB231100H	21810	CHALLENGER ELECTRICAL EQUIPMENT CORP

Techincal Specification:

POLE QUANTITY	3
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	100.0 AMPERES AC ALL LOCATIONS
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
TERMINAL TYPE AND QUANTITY	3 COMPRESSION AND
	3 CLIP
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	240.0 AC ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS AND
	TIME DELAY ALL LOCATIONS
RESET METHOD	MANUAL
BODY STYLE	RECTANGULAR DIMENSIONAL ENVELOPE
MOUNTING FACILITY TYPE AND QUANTITY	6 TERMINAL
CASE MATERIAL	PLASTIC
TRIP RELEASE METHOD	THERMAL-MAGNETIC ALL LOCATIONS
FREQUENCY IN HERTZ	60.0 ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	5000.0 AC ALL LOCATIONS
TRIP RELEASE AMBIENT TEMP RATING	40.0 DEG CELSIUS NOMINAL ALL LOCATIONS
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT	42.000 MINIMUM AT 200 PCT AND
	180.000 MAXIMUM AT 200 PCT ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	125.0 ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
OVERALL LENGTH	4.375 INCHES NOMINAL
OVERALL HEIGHT	2.812 INCHES NOMINAL
OVERALL WIDTH	3.000 INCHES NOMINAL
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
ACTUATOR FUNCTION	TRIP-RESET
ACTUATOR POSITION DESIGNATION	AT POLE TWO
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	DUSTPROOF

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