Feature:1. MAIN PURPOSE: Provide over and under voltage protection, to prevent damage to electrical appliances caused by frequent switching on and off of unstable voltage.2. ADJUSTABLE DESIGN: Manually adjust the overvoltage, undervoltage and overcurrent protection values, automatically recover power supply after 1-600s of voltage stability.3. DIGITAL DISPLAY: The overvoltage and undervoltage protector adopts digital display design, to measure and display voltage, which is clear and intuitive.4. MULTIPLE FUNCTIONS: The self recovery voltage protector has the functions of reset mode selection, fault query, factory reset, etc., which is applicable to more situations.5. PC HOUSING: The shell of the voltage protector is made of PC flame retardant material, which is environmentally friendly and durable, more safe and reliable to use.Specification:Item Type: Over Under Voltage ProtectorModel: SVP-726Material: PCRated Power Supply Voltage: AC220VOperating Voltage Range: AC80V-400V (Single Phase)Rated Frequency: 50/60HZOvervoltage (> U) Setting Range: 230-300VUnder Voltage (< U) Setting Range: 210-140V>U And <U Tripping Delay: 0.5SReset/start Delay: 1-600SVoltage Measurement Accuracy: 3% (no more than 3% of the total range)Rated Insulation Voltage: 400VOutput Contact: 1NOElectrical Life: 10Mechanical Life: 10Protection Grade: IP20Pollution Degree: 3Altitude: 2000mOperating Temperature: -50-55Humidity: 50% at 40 (non condensing)Storage Temperature: -30-70Product Features:1. Overvoltage protection2. Undervoltage protection3. Voltage display (voltage measurement)4. The overvoltage protection value is adjustable5. The overvoltage recovery value is adjustable6. The action time of overvoltage protection is adjustable7. The undervoltage protection value is adjustable8. Under voltage recovery value is adjustable9. Under voltage protection action time is adjustable10. Fault recovery delay time is adjustable11. Turn on time of power on delay is adjustable12. Reset mode selection13. Fault query14. Restore factory settings.Package List:1 x Over Under Voltage Protector1 x User Manual