200amp power saver ,three phase, Auto control three phase power saver ,save up 40% 200amp three phase power saver Technical parameter :Switch : with swith to control "Auto" , "Off" ,"Manual"or small .auto control: use RTOS 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, ...
