Three phase power distribution lightning protection module

The HD-PMT1 is a Class I lightning surge protector for main power distribution systems. It has the advantages of strong lightning withstand capability up to 35KA (Iimp), low voltage protection level (≤ 2.5KV), extremely low failure rate, no leakage current, strong interrupted flow capability (25KA), and no electric arc leakage.It can be combined into 2P, 3P, 4P structure and is suitable for TT/TN/IT grid type. It is the best choice for lightning protection at the primary distribution panel, the main distribution cabinet, and the main switch. Model HD-PMT1-35/260 Number of modules 2 3 4 Suitable power grid type TT/TN-S/TN-C-S TN-C-IT TT/TN-S/TN-C-S Nominal voltage Un 380V Maximum continuous working voltage Uc 260V Voltage protection level Up 2.5KV Maximum discharging current Imax（8/20μs） 100KA Impact current Iimp 35KA Short-circuit withstand current 25KA Response time Ta 100ns Pre-fuse 125A Leakage current ＜5uA Connecting wire diameter 6mm2 Operating temperature -40℃ to +70℃ Humidity 95% Altitude 2000m Protection degree IP20 Flame retardant level UL94 V0 Installation Clip on 35mm electrical guideway Protection mode L/N-PE 3L-N/PE, 3L-PE 3L/N-PE External dimension 72*90*65mm 108*90*65mm 144*90*65mm Ground the null line repeatedly when Long-distance overhead incoming lines enter buildings. Plug the power phase line (L) and null line (N）into corresponding connector of the electric surge protector and make sure it's firm and reliable. Connect the ground terminal of arrester with the ground lead of lightning protection well (recommended earth resistance ≤4Ω). Suggested specification of the lead wire: no less than 6mm2, short and straight.