Feature:1. Self Resetting: This voltage protector supports automatic reset to prevent prolonged power outages, with quick response, real time digital display of working voltage and current.2. Quick Response: Overload automatic power off, normal power supply within the specified power range, this protector has quick response speed and sensitive internal components.3. Working Parameter: 3 phase over and under voltage protector, the rated voltage is AC220V 380V, rated current is 100A, with 3NO output contacts, high electrical and mechanical life.4. Good Protection: When the protector is overloaded, it will automatically cut off the power supply and provide normal power within the specified range to prevent over and under voltage.5. DIN Rail Installation: This voltage current protector has a simple structure, adopting DIN rail installation to ensure stability and firmness, greatly saving time and improving work efficiency.Specification:Item Type: 3 Phase Voltage Current ProtectorModel: STVP-935AMaterial: PC Flame RetardantRated Power Supply VoltageAC220VAC380VWorking Voltage RangeAC80-400VAC140-700VOvervoltage (>U) Setting Range230-300V390-500VUndervoltage (>U) Setting Range210-140V370-260VRated Frequency: 50/60HZCurrent Setting Range: 1-100ARated Current: 100A>U and <U Tripping Delay: 1-500sVoltage Measurement Accuracy: 2%Rated Insulation Voltage: 400VOutput Contact: 3NOElectrical Life: 100000 TimesMechanical Life: 1000000 TimesProtection Class: IP20Pollution Level: 3Altitude: 2000mOperating Temperature: -10 to 50Humidity: 50% at 40 (non condensing)Storage Temperature: -10 to 55Size: Approx. 90 x 52 x 97mm / 3.5 x 2 x 3.8in.Package List:1 x Over Under Voltage Protector1 x User ManualNote:The voltage displayed between the live line and the neutral line is 220V, and the voltage displayed between the live line and the live line is 380V.