Features Electrode parameters: new technology, high energy, spacing discharge electrode (N-PE), suitable for thunder time. Protection function: built-in overheating, temperature control short-circuit technology, window color shows the working status of the protector. FAST NO LEAK - Comes with small leakage current, fast response time, low residual pressure. Installation mode: module design, easy installation, can be replaced online, installation of 35 standard guide rails. 【Fireproof Shell】The shell material is made of high flame retardant PC, IP20 protection grade. Specification: Item Type: Surge Protection Device Uc: ~1000VDC Input: 20KA(8/20μs) Inmax: 40KA (8/20μs). Up to: 3.8KV or less Shell material: highly flame retardant PC Installation: 35 standard guide rails Protection level: IP20. Colour: Blue and white. Package list: 1 x Surge Protection Device Package List 1 x Surge Protective Device