... firmware control, 3 phase energy saver three phase power saver with LED display and Microchip control, For industryPhase : ThreeRated voltage: 90v- ... 400vLED Display , can see the savingRTOS embedded firmware control Switchwith "Auto""Off ... , House, Restaurant,Office ,Factory,Cyber-cafe,etc.. 400AMP Three phase power saver,LED,LCD display