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ZN75-12 Indoor permanent magnet high voltage vacuum circuit breaker
    发布时间: 2021-07-08 16:58    

ZN75-12 indoor permanent magnet high voltage vacuum circuit breaker is an indoor switching equipment of three-phase AC 50HZ rated voltage of 12KV power system, which serves as the protection and control unit for power network equipment and power equipment of industrial and mining enterprises. Suitable for applications requiring frequent operation or multiple switching short circuit current at rated operating current.

The circuit breaker adopts the integrated design of operating mechanism and circuit breaker itself, which can be used as a fixed installation unit or equipped with a special propulsion mechanism to form a handcart unit.


ZN75-12 Indoor permanent magnet high voltage vacuum circuit breaker

This type of products with bistable permanent magnetic operating mechanism, organizations with a permanent magnet, provided by the permanent magnet retention, are keeping switch, brake state, compared with the conventional spring operating mechanism, a substantial reduction in number of mechanical parts, mechanical transmission chain shortened, so that the switch greatly improve reliability and mechanical life greatly increased.