HLM3 series is a short-circuit and overload protection, dual current limiting circuit breaker-type small. Applicable to the exchange 50Hz/60Hz rated voltage 230/400V, rated current of 63A and below the line, as the lighting and electrical power distribution system of overload and short circuit protection, under normal circumstances can also be used as circuit did not frequent on-off operation with the conversion . HLM3LE series leakage circuit breakers and electric shock can also serve as personal protection equipment leakage.