Power supply lightning protection module（type B）

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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℃至+70℃
Section of minimum installed conductor	6mm²Multi-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.

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Power supply lightning protection module（type B）

Details

IP20