Shu Guang Shu Guang

China ChinaBigFuses Manufacturers & Factories

Global Leaders in High-Voltage Electrical Protection, Power Technology Research, and Precision Manufacturing Since 1992.

Wenzhou Shuguang Fuse Factory

Our Story: Decades of Power Excellence

Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Provinceβ€”the world-renowned "Electrical Capital of China." As a leading power technology enterprise, we integrate research, development, production, and global sales under one roof.

Our journey began in 1992 as the "Yueqing Shuguang Fuse Factory." For over 30 years, we have evolved into a cornerstone of the industry, specializing in High-Voltage (HV) and Medium-Voltage (MV) fuse technology. Our commitment to innovation has allowed us to serve the most demanding electrical grids across the globe.

1992 Established
30+ Years Exp.
ISO 9001:2000
50+ Countries

🌐The Evolution of ChinaBigFuses Globally

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Industrial Status

The global high-voltage fuse market is witnessing a paradigm shift. As industries transition toward automation and high-load machinery, the demand for stable circuit protection has reached an all-time high. China has emerged as the primary manufacturing hub, supplying over 60% of the world's power protection components.

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Industry Development Trends

Modern trends are focused on "Smart Grids" and "Renewable Energy Integration." We are actively developing fuses that can withstand the fluctuating loads of solar and wind farms, as well as the rapid DC charging requirements of the Electric Vehicle (EV) revolution.

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Global Procurement Needs

Today’s global buyers demand more than just a product; they require compliance (IEC, DIN, ANSI), rapid lead times, and customization. We address these needs by offering OEM/ODM services that match specific local grid voltages and environmental conditions, from Arctic cold to Desert heat.

πŸ“œCertified Expertise & Technical Standards

Certificate 1 Certificate 2 Certificate 3 Certificate 4

Our authority is backed by the Ministry of Electric Power Industry. We are a designated producer of high-voltage current-limiting fuses, power capacitor fuses, voltage transformer protection, and zinc oxide arresters.

Every product undergoes rigorous testing at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute.

Global Standard Compliance:

  • βœ… ANSI C37.42
  • βœ… DIN 43625
  • βœ… BS 2692
  • βœ… IEC 60282-1
  • βœ… VDE 0636
  • βœ… GB 15166.2

🏭Our Chinese Factory Advantages

Advanced Manufacturing

Why source from ChinaBigFuses Manufacturers like Wenzhou Shuguang? Our advantages lie in the synergy between traditional craftsmanship and AI-driven quality control.

1. End-to-End Supply Chain: Being located in the electrical capital allows us to source the highest quality raw materials (99.9% pure silver elements, high-strength ceramics) at competitive costs.
2. Rapid Prototyping: Our R&D department can customize new products based on user-provided technical drawings within record timeframes.
3. Sophisticated Testing: We employ high-power test stations to simulate extreme grid failures, ensuring every fuse performs when it matters most.

πŸ› οΈLocalized Application Scenarios

Substation Application

Utility Substations

Protecting grid infrastructure against short-circuits and overloads in urban power distribution.

Industrial Application

Industrial Plants

Heavy-duty protection for transformers and large motors in manufacturing environments.

Renewable Energy

Renewable Energy

Specialized fuse links for solar inverters and wind turbine nacelles.

Transport

EV & Rail

High-reliability circuit protection for electric vehicle batteries and locomotive systems.

🌍Major Market & Global Reach

Our "Shu Rong" brand enjoys a high reputation across Southeast Asia, the Middle East, Africa, and Europe. Within China, we are a key supplier to provincial power companies, maintaining a sales rank at the top of the industry. We invite partners worldwide to join us in creating a safer, more resilient power future.

⭐ Technology-Driven ⭐ Quality-Survival ⭐ Global Cooperation