Suzhou Industrial Park Kejia Automation Co., Ltd.
Main products:NKP Power SPD series,KDY Power SPD series,NKP Signal SPD series,KTL Signal SPD series,Power Distribution Unit
Contact Us
  • Contact Person : Ms. Lou Sandy
  • Company Name : Suzhou Industrial Park Kejia Automation Co., Ltd.
  • Tel : 86-512-65151966
  • Fax : 86-512-65111396
  • Address : Jiangsu,SuZhou,85 Kilometers Away From Alongside the National Highway 312 of Suzhou Industrial Park
  • Country/Region : China
  • Zip : 215001

SPD 40kA/Surge Protective Device

SPD 40kA/Surge Protective Device
Product Detailed
Power SPD 40KA standard type MOV SPD 1, Test standard: IEC61643-1 2, Imax: 40kA, In: 20kA, Up: 1.8 kV 3, 20 years` experien

Surge Protector Lightning Arrester Lightning Protector


Application range

NKP-DY-II-40 series are applied to equipotential bonding of the main low voltage distribution boxes in the building, providing overvoltage protection arising from the class C lightning strike to power supply system or disoperation. (Option from standard IEC61643- 1 and GB50343)

Main Feature:

1. Plug and play design, live-wire replacement, easy maintenance;

2. Build-in temperature control circuit breaker, high security performance;

3. Green light in notice window indicates normal; red indicates broken, replacement notice, which is clear and easy distinguished;

4. Optional telesignalling monitoring interface, realizable remote monitoring;

5. External bus-bar wire, single module free assembled, easy project construction;

6. Assembled 1P, 2P, 3P, 4P etc modes, applied to various electric network systems.

 Technical parameter

Model and specification


No. of poles


Power supply system


Protection grade

C class

Operation voltage Un(V)


Max. continuous operating voltage Uc(V)


Voltage protection level Up(kV)-Less than


Max. discharging current(8/20 us)Imax   (kA)


Normal discharging current (8/20 us) In(kA)


Status indication

Mechanical flag

Remote contacts


Response time(ns)


Ambient temperature

-40°C to +80°C

Relative humidity

On condition that room temperature 30% to 90%

Shell material


Protection level



35mm DIN rail, EN 60715 standards

Test grade

GB18802.1/IEC61643-1 standards

SPD 40kA/Surge Protective Device

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