Feature:1. Main Application: This surge protector is used to efficiently defend AC power systems from lightning strikes or overvoltages.2. PC Material: Made of PC material, this surge protector is flame retardant, impact resistance, weather resistance, and not easy to deform.3. Fine Workmanship: This surge protector is well made with an accurate chip that has premium electrical conductivity and quick response speed. Very reliable tool.4. Rail Installation: This product adopts standard 36MM rail installation and the installation can be quickly completed.5. Modular Design: The surge protector adopts a modular design, which is very simple to use and maintain.Specification:Item Type: AC Surge ProtectorMaterial: PC Flame RetardantMaximum Continuous Working Voltage Uc: 420V ACNominal Discharge Current In: 20kA (8/20s)Maximum Discharge Current Imax: 40kA (8/20s)Voltage Protection Level Up: Less Than or Equal to 1.8KVNumber of Poles: 2PInstallation: 36MM RailProtection Class: IP20Working Temperature: -40 to 80Working Humidity: Less Than or Equal to 90% (Average 25).Package List:1 xAC Surge Protector