5925-01-250-8802, CIRCUIT BREAKER

National Stock Number:
5925-01-250-8802

Federal Supply Class:
5925

National Item Identification Number:
012508802

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:

12-771320-57	52414	EMERSON ELECTRIC CO COMPUTER POWER DIV
12-771320-57	60969	GENERAL ELECTRIC CO ELECTRICAL DISTRIBUTION AND CONTROL
TFK224150WL/TFKUVA9RS/TFKASA2AB-	60969	GENERAL ELECTRIC CO ELECTRICAL DISTRIBUTION AND CONTROL

Techincal Specification:

DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	7.750 INCHES NOMINAL
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY WIDTH	1.380 INCHES NOMINAL
ACTUATOR FUNCTION	TRIP-RESET
ADJUSTABLE TRIP SETTING CURRENT RANGE PER POLE IN AMPS	+700.0/+1500.0 AC ALL LOCATIONS AND +700.0/+1500.0 DC ALL LOCATIONS
ACTUATOR POSITION DESIGNATION	BETWEEN POLE ONE AND TWO
ARC QUENCHING METHOD	AIR
BODY HEIGHT	3.810 INCHES NOMINAL
BODY LENGTH	10.125 INCHES NOMINAL
BODY STYLE	MULTIPOLE-SINGLE ACTUATOR TYPE
BODY WIDTH	4.130 INCHES NOMINAL
BOSS HEIGHT	0.250 INCHES NOMINAL
CASE MATERIAL	PLASTIC
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH	8.380 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH	1.380 INCHES NOMINAL
CIRCUIT PROTECTION TYPE	OVERCURRENT ALL LOCATIONS
EXTRA LONG REFERENCE NUMBER	TFK224150WL/TFKUVA9RS/TFKASA2AB2LS/TFKLS
FEATURES PROVIDED	ADJUSTABLE TRIP RELEASE
FRAGILITY FACTOR	MODERATELY RUGGED
FREQUENCY IN HERTZ	60.0 ALL LOCATIONS
MAIN CONTACT TRIPPING MECHANISM TYPE	TRIP FREE
MANUAL ACTUATOR TYPE AND QUANTITY	1 TOGGLE
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE	225.0 AMPERES AC ALL LOCATIONS AND 225.0 AMPERES DC ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS	22000.0 AC ALL LOCATIONS AND 10000.0 DC ALL LOCATIONS
III CUBIC MEASURE	465.093 CUBIC INCHES
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED	GENERAL PURPOSE
POLE QUANTITY	2
PROPRIETARY CHARACTERISTICS	PACS
MOUNTING FACILITY TYPE AND QUANTITY	4 UNTHREADED HOLE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	480.0 AC ALL LOCATIONS AND 250.0 DC ALL LOCATIONS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER
RESET METHOD	MANUAL
STORAGE TYPE	GENERAL PURPOSE WAREHOUSE
TERMINAL TYPE AND QUANTITY	4 SCREW
TRIP RELEASE AMBIENT TEMP RATING	35.0 DEG CELSIUS NOMINAL ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC	INSTANTANEOUS ALL LOCATIONS
TRIP RELEASE METHOD	THERMAL-MAGNETIC ALL LOCATIONS
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT	130.0 ALL LOCATIONS
UNTHREADED MOUNTING HOLE DIAMETER	0.250 INCHES NOMINAL

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