SHANGHAI DADA ELECTRIC CO., LTD was established in 2004, is acknowledged as one of the most respected nationwide manufacturers low voltage CIRCUIT BREAKER in China. A wide range products cover miniature circuit breakers(MCB), residual current circuit breakers(RCCB), Residual Current Circuit Breakers With Overcurrent Protection (RCBO), moulded case circuit breakers(MCCB), Air circuit breaker(ACB),Vaccum circuit breaker(VCB),AC Contactor, thermal overload relay, Motor Protection Circuit Breaker, etc.