Feature: 1. Come with power supply voltage/current measurement protection(true RMS voltage measurement), voltage/current value digital display 2. You can set over/under voltage value and over current value, very convenient 3. The product using double busbar design, come with stronger wiring ability 4. Self‑resetting function make self‑starting can be realized, and self‑reset time can be set 5. This power control equipment possess stable structure, excellent performance and long service life Specification: Item Type: Voltage/Current Protector Rated Power Supply Voltage: AC220V Rated Power Frequency: 45~65Hz Rated Current: 63A Voltage Display: Yes Current Display: Yes Overvoltage Action Value Setting Range: 230V~300V (factory default 275V) Setting Range of Undervoltage Action Value: 145V~210V (factory default 175V) Over/Under Voltage Action Delay Time: 0.5s Overcurrent Action Value Setting Range: 1A-63A (factory default 63A) Overcurrent Action Delay Time: 5S Hysteresis Rate: 5% (set value of voltage/current) Power-On Delay Time: 2s Reset Delay Time: 2~900s (factory default 30s) Measurement Error: ≤2% Delay Error: ±10% IP Rating: IP20 Pollution Degree: 3 Electrical Life: 100000 Mechanical Life: 1000000 Altitude: ≤2000meter Working Environment Temperature: -20℃~55℃ Allowable Relative Humidity: ≤50% (40℃) (no condensation) Rail Standard: Width approx. 35mm / 1.4in (IEC/EN60715). Package List: 1 x Voltage/Current Protector1 x User Manual