1、High flame retardant and impact resistance, prevent overvoltage, undervoltage or current overload to damage the electricals 2、The overvoltage protection and undervoltage protection can be set according to the power status, very flexible and convenient 3、Intelligent control chip, can display real-time current, automatically cut off when the current or the voltage is exceeded 4、Good-quality high-definition display, the large-screen provides clearer handwriting 5、Over‑voltage action delay 0.5S, reset delay start for 3‑300S, voltage measurement accuracy is 0.01, very fast and accurate Item Type: Voltage Current Protector Material: Flame retardant nylon Rated Frequency: 50/60hz Overvoltage Setting Range: 230-300v Overvoltage and Undervoltage Action Delay: 0.5S Reset Delay Start: 3-300S Environmental Protection Level: 3 Protection Level: IP20 Altitude: Less than or equal to 2000 meters Ambient Temperature: -55℃-55℃ Humidity: Less than or equal to 0.5/40℃ without condensation Overcurrent Setting: 1-63A (adjustable) 1 x Voltage Current Protector