... control, voltage constant/current constant (could be manually switched)AC inputvoltage rangeAC 220C, 380V, 400V, 415V, 440V(±10%)frequency range50Hz, 60Hzphasesthree phase three ... , protect the rectifier and plating line, high reliability, long lifespan.Touch screenIncluded, DC current, voltage display, operate Start/Stop, local/remote control selection ...