Power supply lightning protection module(type B)

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    Power supply lightning protection moduletype 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 In8/20ms

    20KA

    10KA

    Maximum discharging current Imax8/20ms

    40KA

    20KA

    Voltage protection level Up

    1.6KV

    1.2KV

    Overall dimension

    36×90×66mm

    Response time Ta

    25ns

    Operating temperature range Tup

    -40+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 (Ninto 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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