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National Stock Number:
5925-01-475-8129
Federal Supply Class:
5925
National Item Identification Number:
014758129
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.
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Manufacturer Information:
| HED43M020 | 66842 | SIEMENS ENERGY AND AUTOMATION INC ITE CIRCUIT PROTECTION DIV |
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Techincal Specification:
| CIRCUIT PROTECTION TYPE | UNDERVOLTAGE ALL LOCATIONS | | FREQUENCY IN HERTZ | 50.0 OR 60.0 ALL LOCATIONS | | OVERALL LENGTH | 6.340 INCHES NOMINAL | | OVERALL WIDTH | 3.000 INCHES NOMINAL | | OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS | 480.0 AC ALL LOCATIONS | | POLE QUANTITY | 3 | | SPECIAL FEATURES | CALIBRATION FOR 50C APPLICATION; HIGH IC RATING; BLACK LABEL | | TRIP RELEASE METHOD | THERMAL-MAGNETIC ALL LOCATIONS |
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