... circuit breaker manufacturing technologies and through independent innovation,MINGHAN have developed the new generation of 10 KV-35KV intelligent circuit breakers (V-Sa series ... *630,1250,1600,2000,2500,3150,5Rated short-circuit ... ,8250,63,809Rated out-phase short-circuit breaking current17.4 ... )We have passed 16 type tests by China National ... 12/17.5/24/40.5kV Indoor Medium Voltage Vacuum Circuit Breaker(VCB ...