The main switch of vacuum circuit breaker and less-oil circuit breaker may be installed according to customer's needs.

sulphur hexafluoride circuit breaker.

ZW20-12 vacuum circuit breaker is 12kV rated voltage and three-phase AC 50Hz for outdoor high-voltage switchgear. It works to break and close the load current, overload current and short circuit current.

Inside the box-typed sealed structure is SF6 gas, which guarantees sealing performance to avoid influence from the outside. The spring operating mechanism adopts a direct-acting chain main drive and a multi-stage tripping system.

It is suitable for the protection and control of substations, industrial and mining enterprises and urban and rural distribution networks, especially suitable for places with frequent operations and urban network automatic distribution networks.