MCB, RCCB, SPD manufacturer / supplier in China, offering Hot Sales Miniature Circuit Breaker 6ka New Type Air MCB 230/400 V AC, Lrm2-63 MCB Circuit Breaker Overload, Short-Circuit Protection 6000A 50/60Hz, Lrm7-63 High-Speed Circuit Breaker 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A with Breaking Capacity 6000A and so on.