Ansun Lightning Technologies Co., Ltd.

China Manufacturer with main products: Surge Protector, Spd, Surge Arrester, Lightning Protector, 20ka Surge Protector, Solar Photovoltaic Surge Protector, Camera Surge Protector,...

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380V 40KA three phase AC power surge protector for power distribution system

FOB Price: 40.00 - 45.00 USD/Set
Payment Terms: T/T, Western Union, Other, PAYPAL
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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Guangdong in China

Quick Details

  • Brand Name: ANSUN
  • Model Number: AM40A
  • Nominal working voltage: 380V
  • Nominal discharge current: 20KA
  • Max discharge current: 40KA
  • Protection level: 1500V
  • Protection way: L1,L2,L3,N-PE
  • Dimension: 90*72*65mm



1)  Three phase power SPD is suitable for system power protection, such as switching room, power distribution cabinet, switch cabinet, AC/DC distribution board, etc.

2)  Distribution box with outdoor input in the building and each floor

3)  Low voltage(200/380VAC) industrial and civil power grid

4) Automation machine room, power supply panel of converting station main control room



1)  Big discharger current capacity, low residual voltage, quick response

2)  Lowe leakage current and rate of change

3)  Heat isolation technique, no fire disaster

4)  Apply special shock fuse pieces, with high reliability

5)  Build-in remote alarm connect point, easy to remote control

6)  With power indicator to display working condition

7)  Equipped with lightning counter, exactly to record lightning stroke

8)  temperature control protective circuit, built-in heat protection, automatic release unit

9)  3+1 protection model(L-N, N-PE), suitable for the poor power grid area

10)  Excellent international famous core component brand

11)  Achieve Kevin wiring way, precise structure, easy installation and maintain

12)  Exquisite process, can work under the hostile environment for a long time, like acid, alkali, dust, salt fog, wet, etc






Nominal working voltage(Un)


Max continuous operating voltage(Uc)


Nominal discharge current(kA)


Max discharge current(kA)


Protected Mode

L1, L2, L3,N-PE

L1,L2,L3-N, N—PE

Protection level


Response time


Lightning counter




Connecting diameter(mm2)

6-25 mm2

Protection Level



35mm slide guide

Working conditions

Temperature:40~+85℃; Relative humidity:≤95(25); Elevation≤3km

Note: For latest information, please contact ANSUN company


Installation and wiring

35mm slide guide installation way, indoor and close to distribution box or power cable

2)  The best wiring for AM series AC power SPD is Kevin method, also directly in parallel(the cable length should be within 0.5m to reduce lightning route).  

3)  The cable applies above 6mm2 multistrand copper core insulated conductor

4)  The front of AM series is equipped with air switch and fuse (air switch chooses C type tripping characteristic, about 25A rated current; the rated current of fuse should be below 50A)

5)  The wiring side of alarm point is upon the base plate, the place of which connects to wire break alarm

6)  connect the input cable(from power) to the input terminal of CB in the box, then ground line of SPD to lightning protection system ground device, lower connecting wire is better, according to the standard of lightning protection project

7)  Take a ground line from ground copper bar of SPD box to connect the earth nearby, according to the standard of lightning protection project


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