... owns overload and short circuit function, in addition, the circuit breaker can send alarm without trip if leakage current exceeds setting current ... ) It is used for the protection against electrical leakage in the circuit of 50Hz or 60Hz.2) It rated voltage ... protection propertyOperation Principle FigWe also manufacture many kinds of Mini Circuit Breakers include C45 C45LE, C65, DPN, DZ30LE, NC100 MCB, ...