Shu Guang Shu Guang

China CustomElectricityFuses Supplier & Factory

Pioneering High-Voltage Circuit Protection Since 1992. World-Class Quality Meets Custom Engineering Excellence.

Wenzhou Shuguang Fuse Co., Ltd. Factory

Our Legacy: Wenzhou Shuguang Fuse Co., Ltd.

Established in 1992, Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Province—the world-renowned "Electrical Capital of China." For over three decades, we have evolved from the "Yueqing Shuguang Fuse Factory" into a modern powerhouse of electrical innovation.

As a leading power technology enterprise, we integrate research, development, production, sales, and service. Our deep-rooted expertise in China CustomElectricityFuses allows us to serve the most demanding utility and industrial sectors worldwide with precision-engineered solutions.

30+Years Exp
ISOCertified
50+Countries
100%Tested

Global Industry Status & Trends

Navigating the evolving landscape of power protection technology.

The global demand for high-voltage and medium-voltage fuses is witnessing an unprecedented surge. As nations transition toward Smart Grids and Renewable Energy sources, the need for reliable circuit protection has never been more critical. Traditional power systems are being augmented by solar farms, wind turbines, and massive battery storage facilities—all of which require specialized CustomElectricityFuses to prevent catastrophic failures and ensure continuous power delivery.

Trend Alert: The rise of Electric Vehicles (EV) and the rapid deployment of DC Fast Charging stations are driving a new market for high-speed, high-voltage EV fuses. Our factory is at the forefront of this shift, developing the next generation of EV-link fuses that meet rigorous international standards.

Meeting Global Procurement Demands

Modern global procurement teams are no longer just looking for a vendor; they are looking for a strategic partner who understands IEC, DIN, ANSI, and BS standards. Reliability, traceability, and customization are the three pillars of modern industrial procurement. Whether it's a utility provider in Europe or a manufacturing plant in Southeast Asia, the requirement for fuses that can withstand extreme environmental conditions while providing precise current-limiting performance is universal.

Smart Grid Ready

Designed for integration with modern monitoring systems and automated substations.

Custom Engineering

Tailored voltage ratings and breaking capacities for specific industrial applications.

E-E-A-T Certified

Decades of proven field experience and adherence to the strictest global safety norms.

Our Certification & Quality Standard

Validated by world-class testing institutions.

At Wenzhou Shuguang Fuse Co., Ltd., our products are designated by the Ministry of Electric Power Industry. We manufacture a comprehensive range of high-voltage current-limiting fuses, power capacitor protection fuses, voltage transformer protection fuses, and drop-out fuses. Our quality assurance system has passed ISO9001:2000 certification, ensuring every unit leaving our factory is of impeccable quality.

Our technical performance meets and exceeds:

  • ANSI C37.42
  • DIN 43625
  • BS 2692
  • IEC 60282-1 / IEC 282-2
  • VDE 0636
  • GB 15166 (National Standard)
Certificate 1 Certificate 2 Certificate 3

The China Factory Advantage

Why global enterprises choose Shuguang as their primary supplier.

Proximity to the Hub

Being in Yueqing gives us access to a complete upstream and downstream industrial chain, reducing production time and costs significantly while maintaining high quality.

Advanced Testing Infrastructure

Our products are validated by the Xi'an High-voltage Electrical Apparatus Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center.

Rapid Customization

Unlike standard retailers, our status as a direct factory allows us to customize performance indicators and dimensions according to specific regional electrical requirements.

Localized Application Scenarios

Where our fuses make a difference every day.

Application 1

Utility Substations

Application 2

Industrial Manufacturing

Application 3

Renewable Energy Farms

Application 4

Railway Systems

From the high-demand provincial power companies in China to the emerging markets in Southeast Asia, Africa, and Europe, Shuguang fuses protect infrastructure worth billions. Our fuses are integrated into oil-immersed transformers, outdoor distribution lines, and underground power networks, proving their resilience in every climate.

Advanced Technological Integration

Where science meets survival.

The company adheres to the principle of "Development by science and technology, and survival by quality". While vigorously developing new products, we have always attached importance to the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system.

In recent years, we have integrated AI-driven design simulation to predict the thermal performance of our High-voltage fuses under extreme overload conditions. This allows us to produce "Back-up" fuse-links that operate exactly when needed, protecting expensive transformers and switchgear from thermal and mechanical damage.

"Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users due to their consistent arc-extinguishing capabilities and robust mechanical design.
Technological Excellence SG Power Fuse

Contact Your Trusted China CustomElectricityFuses Partner

Ready to upgrade your power protection system? Whether you need standard DIN fuses or a completely custom design for a unique industrial project, Wenzhou Shuguang Fuse Co., Ltd. is here to help. Our team of engineers is ready to discuss your specifications and provide a competitive quote.

Consult Our Experts Today