ZN28A-12/1600-40 series Vacuum Circuit Breaker is a indoor high voltage Switchgear with rated voltage 12KV, 3 phases AC 50 HZ .
This products is subjected to the standard GB1984-89 .The main structure of this products has two types: one is switch body and operation organization installed into one body, another is switch body and operation organization installed separately. The first one is the ZN28-12 basic type, the later one is ZN28A-12 which is applied for various fixed switchgear cabinet, such as GG-1A(Z) , XGN2-12(Z) etc. This product can match to use CD17,CD10A Model DC magnetic operating organization or CT17 and CT19 model spring energy store operating organization .
Vacuum circuit breaker with a small contact distance, arc time is short, breaking the fault current in contact with the characteristics of minor burns, so the vacuum circuit breaker required for the operation of small energy, fast action. It also has a small size, light weight, maintenance workload is small, to fire, explosion, the advantages of small operation noise.
Vacuum circuit breaker mainly includes three parts: vacuum interrupter, electromagnetic or spring Operating mechanism, bracket and other parts.
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