... & high-voltage circuit breakers and switches, including Vacuum circuit breaker(VCB), Air circuit breaker(ACB), Moulded Case Circuit Breakers(MCCB), Miniature Circuit Breakers (MCB), Residual Current Operated Circuit Breakers. It ... polesMoulded Case Circuit Breakers(MCCB) 380V, 400V 10A~800A 3, 4 polesMiniature Circuit Breakers (MCB) 1A~100A 1, 2, 3, 4 poles Circuit Breaker/Vaccum Circuit Breaker ...