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National Stock Number:
5925-12-381-2126
Federal Supply Class:
5925
National Item Identification Number:
123812126
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:
| 0708301 | C4739 | SIEMENS AG DF CS OM DM SUB | | 5SY4120-7 | C4739 | SIEMENS AG DF CS OM DM SUB | | 5SY4120-7 | CD419 | SIEMENS AG BUILDING TECHNOLOGIES | | 63955095 | D0274 | WEISS UMWELTTECHNIK GMBH | | VG95345T18C105 | D9477 | BUNDESAMT FUER AUSRUESTUNG, | | 5SY4120-7 | D9847 | SIEMENS AG DF CS OM DM SUV |
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Techincal Specification:
| ACTUATOR FUNCTION | TRIP-RESET | | ACTUATOR POSITION DESIGNATION | AT POLE ONE | | BODY STYLE | SINGLE POLE TYPE | | CASE MATERIAL | PLASTIC | | CIRCUIT PROTECTION TYPE | OVERCURRENT | | FREQUENCY IN HERTZ | 50,0 | | MAIN CONTACT TRIPPING MECHANISM TYPE | TRIP FREE | | MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE | 20,0 AMPERES AC | | POLE QUANTITY | 1 | | OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS | 230,0 AC | | RESET METHOD | MANUAL | | TRIP RELEASE CHARACTERISTIC | INSTANTANEOUS AND TIME DELAY | | TRIP RELEASE METHOD | THERMAL-MAGNETIC |
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