Feature: 1. Work Mechanism: When the system has a surge overvoltage due to thunder or other reasons, the protector immediately opens quickly within nanoseconds and introduces the surge overvoltage to the earth to provide protection for electrical devices. 2. Insulated Terminal Block: Plug in design, support hot line operation, easy to use. Insulated terminals, reliable and safe, rapid response time, strong load bearing capacity. 3. Indication Window: This surge protection device has a working status indication window, green indicates normal, red indicates fault, can effectively respond to the working status. 4. Easy Installation: This surge protection device is easy to use, very simple to install through the guide rails, just follow the normal ground process can be operated successfully. 5. PC Material: Our surge protection device is made of flame retardant PC material with exquisite craftsmanship, which can prevent fire and corrosion. Specification: Item Type: Surge Protection Device Model: SNYE 40 Color: Orange Red Material: PC Maximum Discharge Current (Imax): 40KA Nominal Discharge Current (In): 20KA Protection Level (up): 1.8KV Voltage: DC1000V Protection Level: IP20 Response Time: ≤25ns Maximum Wire Diameter: 35 hard wire or multi strand wire (mm²) Recommended Wire Connections: 4 to 25mm² Installation: 35mm or 1.4in electrical rail mounting Ambient Temperature: -40℃ to +80℃ . Package List: 1 x Surge Protection Device1 x Accessory