VBK5-40.5 Indoor vacuum circuit breakerDetailed product description：

The VBK5-40.5 (ZN12-40.5) indoor vacuum circuit breaker is an indoor high-voltage switchgear with a rated voltage of 40.5kV and three-phase AC 50Hz. It is manufactured using Siemens 3AF technology. Strong breaking ability, long mechanical life, superior technical performance, and can also be used as control and protection switches for power plants, substations, and other transmission and distribution systems, especially suitable for places with frequent operations.