This is a kind of fine quality surge protecting device, fire proof and corrosion-resistant, prevents home electric network receive excessive impact while lightening. Working status indicating window, green means normal and red means failure, which can effectively react the working status in time. Detachable installation design, the base is reusable, help reduce the maintenance cost. You can have a try.Features:This is a kind of fine quality surge protecting device, fire proof and corrosion-resistant.Plug-in design, support hot-line operation, simple and easy to use.Working status indicating window, green means normal and red means failure, which can effectively react the working status in time.Surge protections, prevents home electric network receive excessive impact while lightening.Detachable 35mm Din rail installation design, the base is reusable, help reduce the maintenance cost.Insulation connecting terminal, more reliable and more safety.Quickly react speed with strong bearing capacity.Specifications:Name: Surge ProtectorImax: 40kAIn: 20kAUP: 1.8kVUc: 385VFrequency: 50Hz, IP20Working temperature: -40 to 80Item size: 73 * 90 * 63mm / 2.87 * 3.54 * 2.48inItem weight: 378g / 13.33ouncePackage size: 75 * 95 * 65mm / 2.95 * 3.74 * 2.56inPackage weight: 395g / 13.93ouncePackage list:1 * Surge Protector