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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

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.



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