MHZLE2-40 electronic leakage circuit breaker is mainly used for AC 50Hz, rated working voltage 230V, rated current 6A to 40A, rated operating short-circuit breaking capacity is not greater than 4500A, as overload, short-circuit and leakage protection, can also be used as The line is used for infrequent on-off and conversion. Its main function is to provide indirect contact protection for dangerous personal electric shock. When other protection measures fail, this residual current circuit breaker can also be used as a supplementary protection for direct contact, but it cannot be used as the only direct contact protection. It is necessary to prevent electrical fires caused by ground fault currents, and it cannot protect against electric shocks that occur between phase lines.