Feature: 1. [Protect Electrical Equipment] Over under voltage protector can detect voltage changes in the power grid in a timely manner, provide timely protection for electrical equipment when the voltage is too high or too low, preventing damage or failure caused by voltage fluctuations. 2. [Energy Saving] Monitor the reasonable range of voltage and automatically cut off the power supply when the voltage exceeds the range, avoiding excessive energy loss during internal operation of electrical appliances. 3. [Improve Work Efficiency] Effectively protect electrical equipment to prevent equipment shutdown or malfunction due to high or low voltage, thereby improving work efficiency and extending service life. 4. [Easy to Use] Adopting advanced electronic technology and intelligent control system, the operation is simple and convenient, users only need to make simple settings to achieve protection functions. 5. [Safe and Reliable] The over under voltage protection device has multiple protection functions, such as overcurrent protection, overload protection, short circuit protection, which can ensure the safety of equipment and personnel. Specification: Item Type: Under Over Voltage Protector Material: Flame Retardant PC Overvoltage Detection Value: 230-300V Adjustable, Factory Setting 270V Undervoltage Protection Value: 120-210V Adjustable, Factory Setting 170V Protection Recovery Delay: 1-600s Adjustable, Factory Setting 30s Overcurrent Protection Value: 1-63A Adjustable, Factory Setting 63A Unbalance Recovery Value: ON OFF Adjustable, Factory Setting ON. Package List: 1 x Under Over Voltage Protector