Intelligent lightning protection box

lightning protection box At normal working state, TNR-SB type lightning protection box’s lightning protection module is on high-impedance state, but would not influence the regular work. When suffering lightning strike and occurs transient overvoltage at the circuit, the lightning protection module will go through in a very short time and discharge the overvoltage to the ground. When this overvoltage disappearing, the lightning protection module will go back to the high-impedance state and will not influence power supply. TNR-SB lightning protection box is widely applicable to AC 45-62HZ, 230/400V power supply system. Mainly used for meteorology, transportation, post and telecommunications, computer network, electron, residence building, railway, petrochemical industry and so on. Protect related apparatus against the damage from overvoltage. Type TNR-60SB TNR-100SB Nominal discharge capacity (KA) 30 60 Max discharge capacity (KA) 60 100 Continuous running voltage (V) 320 385 320 385 Protection level (KV) < 1.8 < 2.5 Sectional area of lead-in power wire (mm2) > 10 >25 Sectional area of grounding wire (mm2) > 16 > 25 Outline size(mm) 275*172*70 330*175*90