Become a benchmark enterprise in the global lightning protection industry
- About WRDZ
- Corporate Culture
- Milestones
- Team
- Certificates
- Smart SPD Factory
- TUV laboratory
About WRDZ
Founded in 2003 and headquartered in Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province, the company is a high-tech enterprise specializing in the R&D, production and sales of Surge Protective Devices (SPD) and Metal Oxide Varistors (MOV).
Boasting a modern production plant covering 10,000 square meters and a TÜV Rheinland witnessed laboratory certified by Germany, the enterprise realizes independent full-process R&D of MOV chips. Its products feature discharge current ratings ranging from 40kA to 150kA and are manufactured in strict compliance with IEC and GB standards.

Corporate Culture
Vision
Positioning: A global OEM supplier specializing in lightning protection. We provide professional OEM manufacturing services for Fortune Global 500 corporations such as Siemens, aiming to build "the benchmark OEM factory among benchmark enterprises in the industry".
Mission
We secure power system safety with nanosecond-grade protection technology, reconstruct lightning protection frameworks through data-driven thinking, and supply efficient, reliable overvoltage protection solutions to customers worldwide.
Enterprise Spirit
Two decades of intensive research shields thousands of households with nanosecond-level protection; intelligent innovation reshapes power safety with data-oriented mindsets. We always maintain engineers’ rigorous standards and entrepreneurs’ passion to construct a full-scenario intelligent protection system, striving to be a technological beacon guarding global power safety.
Milestones
Two Decades of Refinement, An Industry Benchmark
Forge Independent Innovation by Polishing Core Technologies, Build a Comprehensive Product System Through Steady & Down-to-Earth Operations
Takeoff
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2003: Leitaic Electric Co., Ltd. was founded in Shanghai, with a branch in Yueqing, laying the foundation for early business development. -
2010: Wenzhou Wurong Electronics Co., Ltd. was established, focusing on the R&D and manufacturing of Surge Protective Devices (SPD) and Metal Oxide Varistors (MOV).
Growth
Shanghai Leitaic Electric merged with Wenzhou Wurong Electronics and reorganized into Zhejiang Wurong Electronics Co., Ltd.
The factory relocated to Yueqing Economic Development Zone, Zhejiang Province, realizing resource integration and production capacity expansion.
Advancement
Officially obtained foreign trade authorization and expanded business to overseas markets; our products have been exported to dozens of countries and regions worldwide.
Emergence
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Industry Recognition & Status: Elected as the Chairman Unit (2nd Session) of Yueqing Lightning Protection Electrical Industry Association, taking the lead in industry technical exchanges. -
The Enterprise Technology R&D Center was certified as a Municipal-level R&D Center by Wenzhou Bureau of Science and Technology.
Leap Forward
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Launched multiple new products covering cutting-edge fields such as lightning protection chips and intelligent lightning protection systems. -
Deepened automated production and upgraded full-automatic production lines for core components.
Intelligence
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New products obtained multiple German Rheinland TÜV certificates, with quality widely recognized by international authoritative institutions. -
Sales volume maintained steady growth, and R&D achievements were accelerated for commercialization.
Perfection
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Relocated to a modern new factory building with a construction area of over 10,000 square meters, establishing a full-industry-chain manufacturing base for surge protectors. -
Accumulated 17 invention patents, with significantly improved independent R&D capacity for core technologies.
Team
Certificates
As of June 2025

Smart SPD Factory
The production of MOV chips adopts a continuous encapsulation process system, with a daily output of 40,000 pieces per shift. The SPD assembly line integrates automatic welding, testing and packaging in one unified workflow.
Automated Surge Protector Production Line: Automatic Potting, Automatic Pad Printing, Automated Assembly Line & Automatic Testing Equipment

TUV laboratory
TÜV Rheinland Witness Laboratory in Germany, capable of 40kA lightning surge simulation and 12kV TOV testing.
As a TÜV Rheinland accredited laboratory, we feature intelligent lightning protection systems and fully integrated automatic production lines.


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