Item Type: AC Surge Protector Material: PC Flame Retardant Maximum Continuous Working Voltage Uc: 420V AC Nominal Discharge Current In: 20kA (8/20s) Maximum Discharge Current Imax: 40kA (8/20s) Voltage Protection Level Up: Less Than or Equal to 1.8KV Number of Poles: 2P Installation: 36MM Rail Protection Class: IP20 Working Temperature: -40 to 80 Working Humidity: Less Than or Equal to 90% (Average 25) 1Main Application: This surge protector is used to efficiently defend AC power systems from lightning strikes or overvoltages. 2PC Material: Made of PC material, this surge protector is flame retardant, impact resistance, weather resistance, and not easy to deform. 3Fine Workmanship: This surge protector is well made with an accurate chip that has premium electrical conductivity and quick response speed. Very reliable tool. 4Rail Installation: This product adopts standard 36MM rail installation and the installation can be quickly completed. 5Modular Design: The surge protector adopts a modular design, which is very simple to use and maintain.1 x AC Surge Protector