VBK4-12 Indoor vacuum circuit breakerDetailed product description：

The VBK4-12 (ZN65A-12/T1250-31.5) indoor vacuum circuit breaker is suitable for indoor high-voltage equipment with a rated voltage of 12kV and three-phase AC 50Hz. Its breaking capacity reaches 100 times, which is at the leading level in China. Suitable for use as control and protection switches in power plants, substations, and other transmission and distribution systems, especially in places where important loads are disconnected and frequent operations occur.