LYR8N residual current circuit breaker is suitablefor AC 50Hz, rated voltage 240V, rated current upto 40A.When people come to electric shock orthe leakage current of the network exceeds the specified value, it can quickly cut off the faulty power supply in very short time to protect the safety of people and electrical equipment. At thesame time, it can protect the overload or short circuit, and in frequent switching of the line. lt’ssuitable for terminal distribution lines incommercial office buildings, residential and generalindustrial use.