... embedded Microchip to auto control when the loading big LED display and 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 ... ,Factory,Cyber-cafe,etc.. 400AMP Three phase power saver,LED,LCD display