DZ47L earth leakage circuit breakers are used for the protection against electrical in the circuit of 50Hz or 60Hz, rated voltage single-phase 240V, 3 phase 415V, rated current up to 60A, When somebody gets an electric shock or the residual current of the circuit exceeding the fixed value, the ELCB can cut off the power within the time of 0.1s automatically for prot-ecting the personal safety and preventing the equip-ment from the fault resulted by the residual current. With this function, the ELCB can protect the circuit against over-load and shortcircuit or can be used for the unfrequent switchover of the circuit under normal conditions. It conforms to IEC898-87 & IEC755