NGR8000 series full digital intelligent three-phase motor soft starter is applicable to 380V/660V/1140V three-phase asynchronous motors with rated power below 200KW. This starter 45KW and below is a built-in bypass without the need for an external bypass contactor. 55KW-200KW is a device type that requires a bypass contactor to be installed and combined with a switch to form a motor control circuit.