Features Premium Performance: This surge protective device adopts precision electronic components, red copper joints, good conductivity, longer service life and more stable performance. PC Flame Retardant Material: The surge protective device shell adopts PC flame retardant material, which is safer to use, has a long service life and is more secure to use. Simple Installation: This product adopts 2P rail installation, standard 36MM rail installation, and is used in conjunction with the circuit breaker of the distribution box, and the installation is very simple. Ease of Use: This voltage surge arrester device is modular and easy to use and maintain. Excellent After-sales Service: We provide you with high-quality after-sales service. If you have any questions, please feel free to contact us, and we will deal with it for you as soon as possible. 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