1、[Automatic Power Off] The over under voltage protector automatically cuts off power when overloaded, ensuring normal power supply within the specified range and preventing overvoltages and undervoltages. 2、[Rapid Response] Featuring sensitive internal components, the 3 phase voltage protector offers a quick response, eliminating the risk of overvoltage and undervoltage. 3、[Auto Reset Function] This voltage protective device features an automatic reset function to prevent long term power outages, ensuring your devices are always protected. 4、[Digital Display] The DIN rail voltmeter ammeter shows real time working voltage and current, providing an easy and quick way to monitor the power conditions of your devices. 5、[Simple Installation] With its standard DIN rail installation, the overvoltage protector ensures a quick and stable setup, making it an ideal solution for many environments and applications. Item Type: Over Under Voltage Protector Material: PC flame retardant Model: STVP 935A Rated Frequency: 50 60HZ Current Setting Range: 1-80A Overvoltage (>U) Setting Range: 230-300V (AC220V), 390-500V (AC380V) Undervoltage (>U) Setting Range: 210-140V (AC220V), 370-260V (AC380V) Rated Current: 80A >U and <U Tripping Delay: 0.1-30s Reset Startup Delay: 1-500s Output Contact: 3NO Electrical Life: 100,000 times Mechanical Life: 1,000,000 times Protection Grade: IP20 Pollution Degree: 3 Altitude: ≤2000m Operating Temperature: -10℃ to 50℃ Humidity: ≤50% at 40℃ (Non condensing) Storage Temperature: -10℃ to 55℃ 1 x Over Under Voltage Protector 1 x User Manual