ZW18-40.5 Outdoor vacuum circuit breakerDetailed product description：

ZW18-40.5 outdoor vacuum circuit breaker is suitable for control and protection switches in power plant substations and industrial and mining enterprises, especially for places with frequent operation. The circuit breaker adopts a spring energy storage operating mechanism, which has manual and electric energy storage and manual and electric opening and closing operation performance. The electric can be operated by DC or AC. The circuit breaker has extremely strong breaking capacity and reliable opening and closing operations.

Rated voltage: 40.5kV
Rated current: 1250A
Rated short-circuit breaking current: 31.5kA
Rated short-circuit closing current: 80kA
Mechanical lifespan: 10000 cycles