Adjustable voltage protection valuetothreetophase overvoltage and undervoltage protector, automatic reset or overvoltage protection or undervoltage protection. A new generation of home intelligent comprehensive protectortomaster the current and voltage by yourself to ensure the safety of home electricity and keep family away from hidden dangers. Overtovoltage, undertovoltage and overtocurrent are controlled by yourselftowhen the voltage is too high or too low, disconnect the load by yourself, and automatically detect the voltage in the line, and then automatically close it after it returns to normal to restore power supply. The current and voltagetointelligent control chip can be set according to the power consumption state, which displays the current power consumption, and automatically switches off when the current exceeds and automatically switches off when the voltage exceeds. Heat and cold resistance adapt to various environmentstomeet the application needs of different environments and operate reliably in harsh environments. Multiple indications, current and voltage at a glancetohightoprecision current and voltage display, LCD screen itself does not consume electricity. Product name: threetophase overvoltage and undervoltage protector Specification:100A or 63A Colour:White Material:Plastic Package Contents: 1 x 3 Phase Over and Under Voltage Protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1to3cm.