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Premium Surge Protection Devices for Industrial, Commercial & Solar Applications

THOR Electric has been a trusted manufacturer of AC, DC, PV, and Signal Surge Protection Devices since 2006. IEC, TUV, and RoHS certified. Engineered for reliability, safety, and long-term performance.

THOR SPD Products

About THOR Electric

A leading manufacturer of surge protection devices with 19+ years of experience in lightning and transient overvoltage protection.

Thor Electric Co., Ltd. is a professional surge protection device manufacturer established in 2006. We are dedicated to the design and production of high-performance SPDs for AC, DC, photovoltaic, and signal systems.

Our products comply with international standards including GB18802.1-2011 and IEC61643.1, ensuring reliability across industrial automation, commercial buildings, residential installations, and renewable energy systems.

  • 19+ Years of Industry Experience
  • IEC, TUV, RoHS Certified Products
  • Full Range of AC, DC, PV & Signal SPDs
  • Custom Solutions Available
THOR Factory or Lab

Our Surge Protection Device Range

IEC-certified SPDs for every application — from solar farms to data centers.

AC Surge Protective Device

Type 1, Type 2, and Type 1+2 SPDs for industrial, commercial, and residential power systems. Protects against indirect lightning strikes and switching surges.

  • Series: TRS, TRS2, TRS4, B+C
  • Voltage: Up to 1000V AC
  • Standards: IEC61643-11
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PV Surge Protective Device

Designed specifically for photovoltaic systems. Protects solar installations from transient overvoltages up to 1500V DC.

  • Series: TRS3 (Type 1+2 DC)
  • Voltage: 500V – 1500V DC
  • Application: Solar farms, rooftop PV
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DC Surge Protective Device

Reliable surge protection for DC circuits in telecom, rail, and industrial systems. Prevents damage from voltage spikes.

  • Impulse Current: 20KA~200KA (8/20μs)
  • Standards: IEC61643-11
  • Mounting: DIN Rail
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Signal Surge Protective Device

Protects data, control, and communication lines from transient overvoltages. Ideal for Ethernet, PLCs, and monitoring systems.

  • Models: TRSS-RJ45, TRSS-RJ45/4
  • Interfaces: RJ45, TNC Coaxial
  • Certified: IEC61643-21
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Lightning Protection Box

Integrated solution for low-voltage power systems with status indication. Combines SPDs and monitoring in one enclosure.

  • Application: Distribution panels
  • Features: LED status indicators
  • Mounting: Wall or DIN rail
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Lightning Rod

PDC series lightning rods enhance upward leader formation during thunderstorms, providing effective air termination.

  • Technology: Early Streamer Emission
  • Protection Radius: Up to 120m
  • Material: Stainless steel
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Lightning Strike Counter

Accurately records lightning strikes with high sensitivity. Durable design for outdoor installation.

  • Detection Range: 250A – 100kA
  • Display: Mechanical counter
  • Mounting: On down conductor
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Custom SPD Solutions

THOR offers tailored surge protection designs for unique industrial and infrastructure requirements.

  • Custom Voltage Ratings
  • Special Enclosures
  • OEM/ODM Support
Request Quote →

Why Choose THOR?

Engineered for performance, tested for reliability, trusted worldwide.

Certified Quality

IEC, TUV, RoHS compliant. Meets GB18802.1-2011 and IEC61643 standards.

In-House Testing

Independent lightning strike simulation lab ensures real-world performance.

Global Reach

Trusted by clients in Europe, North America, Asia, and Africa.

Custom Solutions

Tailored SPDs for unique industrial and infrastructure needs.

19+
Years in Business
20KA
Max Impulse Current
1500V
DC Voltage Rating
50+
Countries Served

What Our Clients Say

P

Paul, UK

Distributor

"THOR's independent lightning strike simulation lab left a lasting impression. Witnessing their rigorous testing process firsthand reinforced our confidence in their commitment to excellence."

F

Francesco, Italy

System Integrator

"We've been partnering with THOR for years. Their SPDs are integral to our operations. THOR is more than a supplier—they're a trusted partner in our success."

J

Joe, Germany

Facility Manager

"THOR's SPDs enhanced system reliability and reduced maintenance costs. Efficient, effective, and cost-effective—exactly what we need."

Contact THOR Electric

Reach out for product inquiries, technical support, or custom solutions.

Get in Touch

Address:

Wenzhou Economic Development Zone, Zhejiang Province, China

Phone:

+86-577-62677705

Sales 1 (WhatsApp/WeChat):

+86 18969702600

Sales 2 (WhatsApp/WeChat):

+86 15397351020

Email:

info@thorspd.com

Visit Our Official Website

For detailed product specifications, downloads, and official support, please visit the THOR Electric website.

Visit Official Website

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