Vacuum Circuit Breaker 1)small volum,overall layout is ... ,long life 3)reliable 1, Product Name: Indoor high voltage Vacuum Circuit Breaker 2, Product Type:CLZN63-12(VS1) 3, ... Product Introduction CLZN63-12(VS1) Vacuum Circuit Breaker is adopt advanced CAD/CAM/CAE design and produce ... high voltage products developed by our company .This circuit breaker is suitable for AC 50HZ,rated voltage 12KV ...