Product description

The product is suitable for three-phase AC 50Hz, 12kV withdrawable type VS1-12 series indoor circuit breaker of 150mm, 210mm, 275mm phase distances with composite insulation or embedded pole. It conforms to the requirements for mechanism per GB1984 standard for “High-voltage alternating-current circuit-breakers”, JB3855 standard for “3.6-40.5kV Indoor high-voltage alternating-current vacuum circuit-breakers”, IEC60056 standard for “High-voltage alternating-current circuit-breakers”, DL/T403 standard for “Specification of 12-40.5kV indoor high-voltage circuit-breakers” etc.