The ZN3. ZN5-10 vacuum circuit breaker is a three-phase AC 50 Hz indoor high-voltage circuit breaker. The circuit breaker body and operating mechanism are connected together and belong to the integral type. The mechanical life has increased from 2000 times for the CD10 mechanism of the original split low oil circuit breaker to 10000 times. The advantage of the integral circuit breaker is that it overcomes the dead zone of the connecting rod existing in the original CD10, improves the reliability of opening, and ensures the safety of equipment and the power grid. The ZN5-10 vacuum circuit breaker has a large breaking capacity and is suitable for frequent operation and situations with many faults

ZN3, ZN5-10 type vacuum circuit breaker