• Hunan Heou Engineering Consulting Co., Ltd
    Marshall Law
    Thank you for helping us to complete our lightning protection grounding work, our wind power project found several lightning protection companies can not complete, your flexible grounding body is really amazing, thanks again!" .
  • Hunan Heou Engineering Consulting Co., Ltd
    john wick
    Thank you for your assistance in completing the tower lightning protection project. Your company's service is very considerate and technologically advanced, especially the flexible grounding body earthing project, which greatly reduces our cost and time, and I hope to have the opportunity to cooperate again.
Contact Person : cody
Phone Number : 86-17349642793
Whatsapp : +8617349642793

385V Power Surge Protection Device

Place of Origin China
Brand Name HAMMOND
Model Number HDS-D20 NPE
Minimum Order Quantity 50
Price Negotiable
Delivery Time 8 days
Payment Terms L/C, T/T
Supply Ability 1000

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Product Details
Product Name Surge Protector Function Lighting Protection
Maximum Discharging Current 20KA Maximum Continuous Operating Voltage Uc 385V
Material Metal Nominal Discharging Current 10KA
Color White
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20KA Power Surge Protection Device


385V Power Surge Protection Device


10KA Metal Power Surge Protection Device

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Product Description
Product Description

Power supply lightning protector (SPD), also known as lightning arrester, surge protector, surge protector. In the information age, computer networks and communications equipment is increasingly sophisticated, the requirements of its working environment is also increasingly high, and lightning and large electrical equipment transient overvoltage will be more and more frequent through the power supply, antennas, radio signal transceiver equipment and other lines into the indoor electrical equipment and network equipment, resulting in equipment or component damage, casualties, transmission or storage data interference or loss, and even make electronic equipment malfunction or temporary paralysis, system stoppage, data transmission interruption, LAN or even WAN damage. The damage is alarming, and the indirect loss is generally much larger than the direct economic loss. Power supply lightning protector is to prevent equipment from being struck by lightning through modern electricity and other technologies.

Development history Editorial voice
The most primitive lightning arrester is ram-horn shaped gap, appeared in the late 19th century, used for overhead transmission lines, to prevent lightning damage to equipment insulation caused by blackouts, so called "lightning arrester". 1920s, aluminum lightning arrester, oxide film arrester and pill arrester appeared. 30s appeared tubular lightning arrester. 50s appeared silicon carbide lightning arrester. 70s appeared metal oxide lightning arrester In the 1970s, metal oxide lightning arrester appeared. 1992 onwards, the industrial control standard 35mm rail snap-in pluggable SPD lightning protection module, represented by Germany and France, began to be introduced into China on a large scale, and later the integrated box power lightning protection combination, represented by the United States and the United Kingdom, also entered China.


There are two types of power surge protector: the explosion-proof box type and the modular type. Both use voltage-sensitive resistors with excellent non-linear characteristics. Under normal conditions, the surge protector is in a very high resistance state and the leakage current is almost zero, thus ensuring normal power supply to the power system. When a surge overvoltage occurs in the power system, the power surge protector immediately conducts within nanoseconds, limiting the amplitude of the overvoltage to the safe working range of the equipment, while the surge energy is channeled into the ground and released. The surge protector then rapidly changes to a high resistance state again, thus not affecting the normal power supply.


Performance features
1. large protection flux, very low residual voltage, fast response time
2. the latest arc extinguishing technology, completely avoiding the occurrence of fire
3. Adopt temperature control protection circuit, built-in thermal protection
4. with power status indication, showing the working status of the surge protector
5. Rigorous structure, stable and reliable operation [1].




Lighting Protection
Electronic Equipment
Maximum Discharging Current (KA)
Nominal Discharging Current (KA)
Maximum Continuous Operating Voltage Uc (V)


Company Information
High Quality Cheap Price Power Spd Diverter Surge Protector Device

Company Profile

High Quality Cheap Price Power Spd Diverter Surge Protector Device

Hunan Hertz-Ohm Engineering Group Co., Ltd. (referred to as Hunan Heou) is a comprehensive engineering consulting company established in Changsha in cooperation with Heilongjiang Hengdian Lightning Protection Engineering Co., Ltd. Group. The main purpose is to consolidate the original business content of Hengdian Lightning Protection Company to South China, and to increase and promote new engineering consulting and management business scope. The company's service areas involve electric power, mobile communication, wind power, solar energy, chemical petroleum, national defense and civil intelligent buildings, and industrial control fields.

High Quality Cheap Price Power Spd Diverter Surge Protector Device High Quality Cheap Price Power Spd Diverter Surge Protector Device High Quality Cheap Price Power Spd Diverter Surge Protector Device

High Quality Cheap Price Power Spd Diverter Surge Protector Device

Packaging & Shipping


Standard export carton packing.


3-20 days after confirming order,detail delivery date should be decided according to
production season and order quantity.

High Quality Cheap Price Power Spd Diverter Surge Protector Device