Power supply lightning protection module（type B）

Power supply lightning protection module（type B） Electric surge protector of low-voltage distribution system is design according to IEC standard.It has invalidation detection indication, standard modularization installation, changeable lightning protection module and powerful discharge capacity of lightning current.It’s applicable to the protection of buildings’ general supply system against lightning .With 35mm standard guide-way,this lightning arrester is very convenient to be maintained.It connects with the circuit in parallel and has no limit to the power of equipment fixed later. Model HD-D220M40B HD-D220M20B Nominal working voltage Un 220V 220V Maximum continuous working voltage Uc 275V 275V Nominal discharge current In（8/20ms） 20KA 10KA Maximum discharging current Imax（8/20ms） 40KA 20KA Voltage protection level Up 1.6KV 1.2KV Overall dimension 36×90×66mm Response time Ta ≤25ns Operating temperature range Tup -40℃ to +70℃ Section of minimum installed conductor 6mm2 Multi-folded wire Protection grade IP20 Sheathing material Flame retardant thermoplastic material Mode of connection Parallel connection Ground the null line repeatedly when long-distance overhead incoming feeder is connected to the building. 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 appropriately (recommended earth resistance ≤4Ω). Suggested specification of the lead wire: no less than 6mm2, short and straight.