DZL18 Series residual circuit breakers are applied to the AC 50HZ ,rate voltage 220V , rated current 32A and below.They can offer the standby peotection of electric leakage of electric shock, or to prevent against the fire result from the ground fault due the damaged insulation of the equipment. After the release is heated. the breaker can also ba used to preotect the circuit from overload. Expect for the electric shock and electric leakage protection functions. the earth leakage circuit breaker with overlotage protection is capable to offer protection with the voltage increases in excess due to the network fault. The products conform to the IEC 61008&IEC 61009 standards.