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DC Surge Protective Devices

Type 1, type 2, type 3 surge protective devices (SPDs) for DC power supply systems with premium quality and unmatched reliability.

1_572866

500VDC Type 2 Surge Protective Device PV DC SPD

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1000 VDC Type 2 Surge Protective Device PV DC SPD

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1500 VDC Type 2 Surge Protective Device PV DC SPD

11_639433

1000 VDC Combined SPD Type 1 and Type 2 Lightning Current Arrester and Surge Arrester

AC Surge Protective Devices

Type 1, type 2, type 3 surge protective devices (SPDs) for AC power supply systems with premium quality and unmatched reliability.

8_907687

DHEN Type AC SPD Type 2 Surge Protective Device

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DHEN Type Type 2 Surge Protection Device AC SPD

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OBO Type Type 2 AC SPD Surge Protection Device

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Combined AC SPD Type 1 and Type 2 Lightning Current Arrester and Surge Arrester

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About Us

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Zhejiang Yuelong Electric CO.,LTD is a professional manufacturer located in Yueing City,China.We’re specialized in solar PV components，surge protective device,busbar,terminal block etc.Our products approved in India,Vietnam,Thailand,Iraq,Iran,Poland etc.We can assure you perfect qualtiy and excellent service.

We are looking forward to having a good long-term cooperation with you and your company.

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Application of Surge Protective Devices

Surge protective devices (SPDs) are widely used in various applications to protect electrical and electronic equipment from voltage spikes and transient surges. Here are some common applications of surge protective devices:

Residential Buildings: Surge protective devices are commonly installed in residential buildings to protect sensitive electronics, appliances, and other valuable equipment from power surges. They can be installed at the main electrical panel to provide whole-house protection or at specific points of use, such as near computers, home entertainment systems, or HVAC equipment.
Data Centers: Surge protective devices are used in data centers to protect servers, networking equipment, and storage systems from damaging power surges. They are typically installed at key points within the electrical system to provide layered protection and help prevent data loss or system downtime.
Industrial Facilities: Surge protective devices are used in industrial environments to protect sensitive equipment, control systems, and PLCs from voltage spikes caused by heavy machinery and other operations. They help prevent malfunctions, equipment damage, and costly downtime.
Commercial buildings: Surge protection devices are crucial in commercial buildings because these places use a large number of electrical devices. They are installed to protect office equipment, servers, data centers, communication systems, and other critical infrastructure from surges caused by lightning strikes, power grid disturbances, or switching operations.
Solar Systems: Surge protective devices are used in photovoltaic systems to prevent lightning-induced surges. They are typically installed in parallel on DC lines—at both the solar panel side and the inverter side—to provide common and differential mode protection, especially for long or outdoor cable runs.
Telecommunications: Surge protection devices are essential in telecommunications infrastructure to safeguard communication lines, equipment, and network systems from power surges. They help prevent data transmission disruptions, equipment damage, and outages. Installation and configuration depend on the application and required protection level.

Customization

We assist you with every step to turn your requirements into tangible surge protective devices (SPDs) with professional and experienced engineers backing up.

11_639433

600 VDC Combined SPD Type 1 and Type 2 Lightning Current Arrester and Surge Arrester

63a-3_3740501

Intelligent Led Digital Automatic Voltage Protection

10_153398

Combined AC SPD Type 1 and Type 2 Lightning Current Arrester and Surge Arrester

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Surge Protective Device (SPD) Guidelines

GHX Guide to Surge Protective Devices (SPDs): selection, application and theory

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We focus on providing high-quality equipment and components to meet the needs of customers around the world.

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Contact Details
  • Zhejiang Yuelong Electric Co., LTD
  • Shenhe Pioneer Park B Building, Liushi Town, Yueqing City, Zhejiang, China
  • ceo@ylongelec.com
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