Automatic Transfer Switch, Surge Protector, Distribution Box manufacturer / supplier in China, offering IEC Certification AC 400V 1p 2p 3p 4pole MCB Miniature Circuit Breaker ELCB RCCB RCD, Type a Curve B RCBO 6ka 18mm 6-40A 30mA 1p+N Residual Current Circuit Breaker Overcurrent and Leakage Protection, 1p+N MCB Dpn 32A/220V/230V Miniature Circuit Breaker Overload Protector Single Pole Breaker and so on.