Shu Guang Shu Guang

China OEM Current Limiting Fuses Manufacturers & Supplier

Pioneering High-Voltage Protection Solutions Since 1992. Precision Engineering for Global Power Infrastructure.

The Global Standard in Current Limiting Technology

In the rapidly evolving landscape of global power distribution, the demand for high-reliability circuit protection has never been higher. Current Limiting Fuses (CLF) serve as the critical "first line of defense" in high-voltage networks, preventing catastrophic equipment failure by interrupting short-circuit currents before they reach their peak.

As industrial automation and renewable energy grids expand across Europe, Southeast Asia, and the Middle East, OEM manufacturers must provide components that meet rigorous IEC and DIN standards while remaining cost-competitive.

Wenzhou Shuguang Fuse Co., Ltd., established in 1992, stands at the forefront of this industry. Located in Yueqing, the electrical capital of China, we integrate 30+ years of manufacturing experience with modern AI-driven quality control to supply global markets with premium high-voltage solutions.

Manufacturing Facility

Global Market Trends & Procurement Insights

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Renewable Integration

Solar and wind farms require specialized fuses capable of handling the unique transient characteristics of inverter-based resources. Our XRNP and HRC series are designed specifically for these modern grid requirements.

Smart Grid Reliability

Procurement teams are shifting focus from "lowest cost" to "total cost of ownership." Reliable current limiting fuses reduce downtime in smart substations, a key priority for European and North American utilities.

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Urbanization & Miniaturization

As urban substations become more compact, the need for miniature fuse links and space-saving DIN standard designs has increased. We provide 8*150mm and other custom sizes for confined environments.

Wenzhou Shuguang: 30+ Years of Professional Expertise

Wenzhou Shuguang Fuse Co., Ltd. (formerly Yueqing Shuguang Fuse Factory) is a premier power technology enterprise. Since 1992, we have been designated by the Ministry of Electric Power Industry to produce high-voltage fuses across various voltage levels.

Our commitment to E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) is evidenced by our rigorous testing protocols. Our products are tested and qualified by the highest authorities in the industry, including:

  • ✅ Electric Power Research Institute
  • ✅ National High-voltage Electrical Apparatus Center
  • ✅ Xi'an High-voltage Electrical Institute
  • ✅ ISO9001:2000 Certified Systems
1992 Year Established
100+ Global Export Countries

Compliance with International Standards

Ensuring seamless integration into global power projects.

Region / Standard Body Applicable Standards Product Range Covered
International (IEC) IEC60282-1, IEC282-2, IEC60644, IEC60470 High voltage current-limiting fuses, back-up fuse-links.
European (DIN/VDE) DIN43625, VDE0636 HRC Current limiting fuses, Medium voltage DIN standard.
American (ANSI) ANSI C37.42 High voltage fuses for distribution systems.
British (BS) BS2692 High voltage fuse-links for industrial applications.
Chinese (GB/DL) GB15166.1/2/5, DL/T640-1997 Domestic utility and transformer protection.

Localized Application Scenarios

Transformer Protection

Specifically engineered HRC fuses for oil-immersed transformers, providing reliable back-up protection against internal faults in substation environments.

Power Capacitors

Tail wire recovery capacitor protection fuses designed to handle high inrush currents typical in power factor correction units.

Industrial Switchgear

Compact DIN standard fuses for integration into medium voltage switchgear (12kV, 24kV, 36kV) used in manufacturing plants and data centers.

Renewable Energy

Zinc oxide arresters and drop-out fuses for outdoor solar farms and wind turbine distribution lines, offering superior weather resistance.

Why Choose a China OEM Factory?

Partnering with a specialized manufacturer like Wenzhou Shuguang provides distinct competitive advantages for global distributors and EPC contractors:

  • 🔹 Rapid Customization: We can produce new designs based on specific user technical requirements within short lead times.
  • 🔹 Scalable Production: Our Yueqing facility is optimized for high-volume orders without compromising on the precision of individual units.
  • 🔹 End-to-End Quality: From raw material sourcing to high-power test station validation, we control every step of the process.
  • 🔹 Cost-Efficiency: Benefit from the mature supply chain of China's "Electrical Capital" while receiving products that meet European and American technical benchmarks.
Fuse Technology

Our Certifications & Testing

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Ready to Secure Your Power Network?

Our "Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users. Whether you are looking for standard DIN links or custom OEM solutions, our team is ready to discuss your cooperation.

Domestic Market

Complete sales network across China, serving provincial power companies with top-tier rankings.

International Export

Serving Southeast Asia, the Middle East, Africa, and Europe with IEC-compliant products.