Features Using 2P rail installation, the installation is very simple. Standard 36MM rail installation, used with distribution box circuit breaker. Our Surge Protector PV enclosure is made of PC flame retardant material, which is safer to use. The DC photovoltaic lightning arrester adopts a modular design, which is very simple to use and maintain. The Lightning Tele Protector adopts precision electronic components, which has a longer service life and more stable performance. Purple copper fittings, good electrical conductivity. Specification: Material: PC flame retardant shell Uc: 1000V Type: #1, 10/20KA;   #2, 20/40KA(Optional) Nominal discharge current: 10KA(#1),20KA(#2) Maximum discharge current: 20KA(#1), 40KA(#2) Installation mode: 2P Guide rail mounting  Residual voltage after unloading voltage: <3.0KV Rated connectivity and segmentation Ability: 1M Product dimension: 90*49*36mm / 3.5*1.9*1.4in Weight: 260g/9.2oz Package List: 1 * Surge Protective Device Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Package List