Shu Guang Shu Guang

China LvFuse Supplier & Factory

Advanced Electrical Protection Solutions for a Sustainable Global Future

Wenzhou Shuguang Fuse Co., Ltd.

Our Heritage: Wenzhou Shuguang Fuse Co., Ltd.

Established in 1992 as the "Yueqing Shuguang Fuse Factory," we have grown alongside the rapid industrialization of China's electrical sector. Based in Yueqing, Zhejiang—the renowned "Electrical Capital of China"—our company has transformed into a leading power technology enterprise. We integrate cutting-edge R&D, large-scale production, global sales, and comprehensive after-service into a singular, high-efficiency entity.

With over three decades of professional expertise, we have specialized in high-voltage current-limiting fuses, protection for power capacitors, and zinc oxide arresters. Our journey from a local factory to a premier China LvFuse Supplier is built on a foundation of rigorous quality control and technical innovation.

30+ Years Experience
ISO9001 Certified Quality
100% Test Qualified

The Global Landscape of Power Protection

The global electrical fuse market is undergoing a seismic shift. As nations race toward carbon neutrality, the integration of renewable energy sources—such as wind and solar—has created an unprecedented demand for reliable circuit protection. Modern power grids are transitioning from centralized systems to distributed smart grids, requiring components that can handle bidirectional power flows and high-frequency fluctuations. As a dedicated LvFuse Supplier & Factory, we stay at the forefront of these industry trends.

The Surge of Electric Vehicles (EV): The transition to electric mobility is perhaps the most significant driver for the fuse industry today. High-voltage EV fuses must provide ultra-fast response times to protect sensitive lithium-ion batteries and power electronics during short-circuit events. Our Wholesale EV Fuses are engineered specifically to meet these demanding automotive safety standards, ensuring reliability in vibration-prone environments.

Industrial Modernization: Across Southeast Asia, the Middle East, and Africa, massive infrastructure projects are calling for robust transformer protection. Our DIN standard current-limiting fuses and HRC (High Rupturing Capacity) links are becoming the gold standard for industrial facilities looking to minimize downtime and protect expensive substation equipment from catastrophic failure.

Digitalization and Smart Protection: The industry is moving toward "smart fuses" that can communicate status in real-time. While traditional mechanical protection remains the core, the precision with which our high-voltage current-limiting fuses operate is being refined through advanced material science and computer-aided design, ensuring that when a fault occurs, the interruption is localized and instantaneous.

Certified Excellence & Compliance

Our authority in the fuse manufacturing industry is verified by national and international bodies. Wenzhou Shuguang Fuse is designated by the Ministry of Electric Power Industry for high-voltage component production.

International Standards

Our products fully comply with IEC60282-1, DIN43625, BS2692, and ANSI C37.42. This ensures our components can be seamlessly integrated into electrical systems worldwide, from European industrial grids to American power stations.

Rigorous Testing

All performance tests are conducted at the High-Power Test Station of the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision Center. We leave zero room for error.

ISO 9001:2000 System

Our complete quality assurance system oversees every stage—from the procurement of high-quality raw materials to the final precision testing of "Shu Rong" brand products. This systematic approach guarantees the reliability that global procurement officers demand.

Certificate 1 Certificate 2 Certificate 3 Certificate 4 Certificate 5

Versatile Industry Applications

Power Distribution

Protecting oil-immersed transformers and switchgear from overcurrent and short-circuit faults in urban and rural networks.

Renewable Energy

Specialized fuses for wind turbine converters and solar PV combiner boxes, designed for the unique DC requirements of green energy.

Commercial EV Charging

Reliable protection for rapid-charging stations, ensuring safety for both the vehicle and the grid infrastructure.

Application 1 Application 2 Application 3 Application 4

Why Choose Shuguang as Your China Factory Partner?

Unmatched Manufacturing Capacity

As a leading China High Voltage Fuse Supplier, our factory is equipped with sophisticated testing equipment and automated production lines. This allows us to maintain high quality while offering the competitive pricing of a direct-from-source manufacturer.

  • Customization: We can customize and produce new products based on specific user requirements and technical conditions.
  • Global Export: Our products are currently exported to Southeast Asia, the Middle East, Africa, and Europe.
  • Innovation: Continuously deepening our R&D to develop lightweight and high-capacity polymeric insulators and expulsion fuse links.
Technological Excellence

Detailed Technical Insights for Electrical Procurement

For procurement managers and electrical engineers, selecting the right fuse is a matter of long-term operational safety. Our H.R.C. XRNP current-limiting fuses are designed specifically for voltage transformer protection. They provide a high-breaking capacity that ensures even the most violent faults are contained within the fuse body, preventing damage to sensitive measuring equipment.

Our Polymeric Insulators offer a significant advantage over traditional ceramic versions. They are lightweight, resistant to breakage during transport, and perform exceptionally well in polluted or coastal environments. This "Reliable Electrical Performance" is what makes Shuguang a preferred partner for provincial power companies across China and international utilities alike.

When you source from our China Low Voltage Fuse Factory, you are not just buying a component; you are investing in a 30-year legacy of science and technology. We adhere to the principle of "Development by science and technology, and survival by quality." This means every J Slotted Fuse or NH00 HRC Fuse that leaves our facility has been vetted against the most stringent technical conditions.