SPDs Protectors Surge Protective Devices

SPDs Protectors Surge Protective Devices
The easy operation SPDs protectors surge protective devices also has high quality and reliable performance. We can assure you that our SPDs protectors surge protective devices is powered by clean energy and has high efficiency.
Product Details

SPDs Protectors Surge Protective Devices
Surge protective device is also know as surge protector or SPD in short.
Technical Parameter

Model name





1P, 2P, 3P, 4P

Max. continuous operation AC voltage Uc

275V AC

Norminal discharge current (8/20μs) In


Maximum discharge current (8/20μs) Imax


Voltage protection level (L-N) Up


Response time (L-N) tA



36mm Standard Guide

Cross section of wire (Min.)


Cross section of wire (Max.)


Casing material

Thermoplastic UL94-V0

Dimension (L*W*H)



It is mainly applicable for the electronic and power supply devices lightning protection and over voltage protection in the fields of telecommunication, railway, internet, power supply, traffic and house, etc.

2. Installation Method and Attentions:

1) Wiring as shown in Figure; 

2) The connecting lead shall use many strands of copper wires of more than 6mm2, and the earth wire shall use many strands of copper wires of more than 10mm2. The connecting wire shall be as short, straight and coarse as possible. Grounding Resistance should be no less than 4Ω; 

3) The front of lightning arrester shall be connected with proper fuse in series or be opened; 

4) The power supply must be cut off while conducting the installation. It is prohibited to conduct the operation with the charge. The connecting lead must conform to the requirement; 

5) After completing the installation, the lightning protection module shall be inserted tightly and inspected; 

6) When there is RED for the fault indicator of the lightning arrester module (warning signal of remote-signaling port), it indicates that the lightning protection module has degraded and shall be replaced; 

7) The SPD needn't special maintenance, but only check the connection and indicating state periodically.

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