Shu Guang Shu Guang

China Fuses and Circuit Breakers Suppliers & Factory

Pioneering Electrical Safety and Protection Solutions Since 1992

Global Commercial & Industrial Status of Protection Technology

In the modern era of rapid industrialization and digital transformation, the global demand for reliable fuses and circuit breakers has reached unprecedented heights. As power grids worldwide transition toward "Smart Grid" configurations, the need for sophisticated protection devices—ranging from high-voltage current-limiting fuses to advanced miniature circuit breakers—has become the backbone of electrical infrastructure safety.

Statistically, the global circuit protection market is projected to grow significantly as countries in Europe, North America, and Southeast Asia reinvest in aging power grids and integrate renewable energy sources. Whether it is a utility-scale solar farm or a high-tech manufacturing plant, the stability of the system depends on the "last line of defense": the fuse link. As a leading China fuses and circuit breakers supplier, we recognize that our products are not just components; they are the safeguards of multi-million dollar investments in the global energy sector.

30+Years Experience
50+Global Markets
100%Quality Tested
ISO9001:2000 Certified
Factory Overview

Our Story: Wenzhou Shuguang Fuse Co., Ltd.

Located in Yueqing, Zhejiang Province—widely known as the Electrical Capital of China—Wenzhou Shuguang Fuse Co., Ltd. stands as a beacon of power technology enterprise. We specialize in the research, development, production, and service of high-quality electrical protection components.

Our journey began in 1992 as the "Yueqing Shuguang Fuse Factory." Over the decades, we have evolved from a local manufacturer into a globally recognized powerhouse. Our strategic location allows us to tap into the world's most comprehensive electrical supply chain, ensuring that every product, from high-voltage insulators to drop-out fuses, is built with precision and durability.

Industry Leadership: Designated by the Ministry of Electric Power Industry to produce high-voltage fuses, zinc oxide arresters, and more.

Industry Trends & Global Procurement Needs

⚡ Electrification of Transport

The rise of Electric Vehicles (EVs) has created a surge in demand for specialized DC fuses. Our Wholesale EV Fuse solutions are designed to handle the high-current demands and rapid switching required in modern charging stations and vehicle battery systems.

🌱 Renewable Energy Integration

Solar and wind power systems require robust protection against fluctuating voltages. Our tail wire recovery capacitor protection fuses and high-voltage HRC fuses are essential for stabilizing the power output of green energy installations.

🏭 Smart Industrial Automation

Modern factories rely on sensitive electronic equipment. Miniature fuse links and DIN standard current-limiting fuses ensure that localized faults do not lead to massive industrial downtime, protecting the profitability of global enterprises.

Certified Excellence & Technical Compliance

Quality is our survival strategy. Our products have undergone rigorous testing at the highest authorities, including the Electric Power Research Institute, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, and the Xi'an High-voltage Electrical Apparatus Research Institute.

Our technical performance meets and often exceeds international standards:

  • ANSI C37, 42 (North American Standard)
  • DIN 43625 (German Standard)
  • BS 2692 (British Standard)
  • IEC 60282-1 / IEC 60644 / IEC 60470
  • IS09001: 2000 Quality System Certification
  • GB/T 15166.1-5 (Chinese National Standards)
Certificate 1 Certificate 2 Certificate 3 Certificate 4 Certificate 5

Why Choose Us as Your Chinese Factory Partner?

Sophisticated Testing Equipment

We utilize high-precision testing apparatus to verify every batch. This ensures that our Current-Limiting Fuses and Lightning Arresters perform exactly as specified under fault conditions.

Global Export Network

Our products are exported to Southeast Asia, the Middle East, Africa, and Europe. We understand the localized application requirements of different regions, from high-humidity tropical climates to arid industrial zones.

R&D and Customization

While we produce DIN and IEC standard fuses, we also offer customization. New products can be tailored to specific user needs, a capability that has earned the "Shu Rong" brand a high reputation globally.

Complete Supply Chain

Being in Yueqing gives us access to high-quality raw materials at competitive costs, allowing us to offer wholesale prices without compromising on the integrity of the protection devices.

Localized Application Scenarios

Our fuses and circuit breakers find applications in diverse environments:

Oil-Immersed Transformers: Our Wholesale H.V. HRC Fuses provide critical back-up protection for transformer units, preventing catastrophic failures during overloads.
Power Distribution Lines: The China Drop Out Fuse Cut Out is a staple in overhead distribution networks, providing visible isolation and protection.
Urban Substations: High-voltage XRNP current-limiting fuses protect voltage transformers within compact urban substations where space is a premium and safety is paramount.
Production Line

Global Market Presence

Wenzhou Shuguang Fuse Co., Ltd. has established a complete sales network throughout China, serving various provincial power companies. Beyond domestic borders, our growth has been exponential. We sincerely welcome customers from home and abroad to discuss cooperation. Our principle—"Development by science and technology, and survival by quality"—is the foundation of our success in international markets including Southeast Asia, the Middle East, Africa, and Europe.

By choosing us as your factory, you gain a partner dedicated to the prosperity and development of the global electric power industry.

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