MCCB, Air Circuit Breaker, Protector manufacturer / supplier in China, offering Moulded Case Circuit Breaker Low Voltage MCCB 3p OEM CE Power Breaker Protector, Zn63 Vs1 12kv 630A Fixed 11kv Vcb Vacuum Circuit Breaker, MCCB 3p 4p MCCB 63A 100A 160A 250A 400A 630A 800A 1000A 1250A 1600A Moulded Case Circuit Breaker and so on.