MHB6L small Earth Leakage Circuit Breaker is suitable for AC 50/60Hz, rated working voltage 230V leakage electric shock, overload, short circuit and other protection functions, to protect personal safety and prevent equipment from being protected by leakage. According to user requirements, the overvoltage protection function can be added to protect the overload and short circuit in various places such as overvoltage caused by grid faults.