NDU2-20 Lightning Suppressor 20kA Surge Protective Device DC SPD

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$2.80 - $3.30 / Pieces | 10 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
Product name:
Surge Protective Device
Standard Rail 18mm
Relative humidity(25℃):
Rated current:
Supply Ability
Supply Ability:
20000 Piece/Pieces per Day 20ka surge protective device
Packaging & Delivery
Packaging Details
Standard export packing or packing as your requirements

NDU2-20 Lightning Suppressor 20kA Surge Protective Device DC SPD



Product Description

In parallel module type surge protective device was designed accordingly to IEC standard, each line max. Discharge current
Imax could reach 20-40kA, suits for 220/380V power supply distribution system lightning protection.
This SPD is module design, nice sealing performance, and has remote signal interface, faulty indicator; installed in 35mm DIN rail, easy to wire; There has temperature control technology, over current fuse and thermal circuit breaker, automatic trip when degraded. Different specification satisfy, easy to maintain, could supply different working voltage level and lightning discharge current, also could customized according to different requirement.

Technical Parameters
Technical Parameters
Rated Operating Voltage Uc(V~)220V/380V
Maximum Continuous Operating Voltage Uc( V~) 275V 320V 385V 420V
Protection Level Up(V-)kV≤1.2≤1.5≤1.6≤1.8≤2.0≤2.4≤2.5
Nominal Discharge Curreni lN( 8/20us)kA 5101520304060
Mmximum Discharge Current lMAX(8/20 us)kA 102030406080100
Response Time ns<25 
Tesl StandardGB18802,IEC61643-1 
Operating Environment℃-40℃~+85℃
Relative Ilumidity (25℃)≤95%
Installation Standard Rail 35mm
Material of Outer CoveringFiber glass reinforced plastic


Outlooking Dimension




Installation Dimension



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Q1:If I'm interested in your product when I can receive your quotation and detail information after send the enquiry?

A:All your enquiry will be replied in 24hours.


Q2:Can I get a sample before the order because I really don't how is your product quality?

A:Of course! We also think sample order is the best way to build the trust.And in our company we offer free sample service! Please send the enquiry to us and get the free sample!


Q3:Do you have a catalogue? Can you send me the catalogue to have a check of all your products?

A:Yes, We have product catalogue. Please contact us on line or send an Email to sending the catalogue.


Q4:I need your price list of all your products, do you have a price list?

A:We do not have a price list of all of our products. Because we have so many items, and it is impossible to mark all of their price on a list. And the price are always changing because of the producing cost. If you want to check any price of our products, please feel free to contact us. We will send offer to you soon!

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