Shu Guang
Shu Guang
Engineered for reliability, tested for excellence.
Wenzhou Shuguang Fuse Co., Ltd., located in Yueqing, Zhejiang—the renowned "Electrical Capital of China"—is a premier power technology enterprise. Established in 1992 as "Yueqing Shuguang Fuse Factory," we have spent over three decades integrating R&D, production, sales, and service to become a leader in the global fuse market.
As a leading China PtFuses Manufacturers & Supplier, we specialize in voltage transformer (PT) protection, ensuring that power systems remain stable under the most demanding conditions. Our commitment to excellence has made our brand, "Shu Rong", a symbol of reliability among domestic and international utility providers.
Understanding the shift toward Smart Grids and Renewable Energy.
The global demand for high-voltage fuses is currently witnessing a massive surge. As countries transition to renewable energy sources like wind and solar, the need for robust protection for voltage transformers (PT) and power capacitors has never been higher. China, as the world's manufacturing hub, now supplies over 60% of the world's fuse requirements, combining cost-efficiency with high-tech R&D.
Future trends are leaning towards intelligent fuse systems and miniaturization. With the rise of 5G base stations and EV charging infrastructure, PtFuses must operate with higher precision and faster response times. We are currently developing "Smart Fuses" that can integrate with IoT monitoring systems to provide real-time status updates to grid operators.
Global enterprises are moving away from simple transactional purchasing toward strategic partnerships. Buyers from Europe, the Middle East, and Southeast Asia are looking for suppliers who offer full compliance with international standards (IEC, DIN, ANSI) and provide comprehensive technical support for custom electrical environments.
Why Wenzhou Shuguang stands out in the global supply chain.
Our facility is designated by the Ministry of Electric Power Industry. We produce a comprehensive range of high-voltage current-limiting fuses, zinc oxide arresters, and drop-out fuses. Our products have passed rigorous tests at the Xi'an High-voltage Electrical Apparatus Research Institute and other national supervision centers.
High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system. We don't just manufacture; we customize. Whether it's a specific voltage level for a unique industrial application or a custom-size fuse for an aging substation, our R&D team can deliver solutions that meet DIN43625, BS2692, and IEC60282 standards.
Meeting the world's most stringent electrical standards.
Technical performance meets: ANSI C37.42, DIN 43625, BS 2692, IEC 282-2-1995, IEC 60644, IEC 60470, IEC 60282-1, IEC 269-2 and GB standards.
Reliable protection across diverse sectors.
Our PT fuses protect voltage transformers from short-circuiting, ensuring continuous grid monitoring and preventing catastrophic equipment failure.
For high-load factories, our HRC current-limiting fuses provide rapid interruption to safeguard expensive machinery and production lines.
Essential for protecting power capacitors and solar inverters, maintaining the stability of variable energy inputs in modern micro-grids.
Serving municipal power companies with reliable drop-out fuses and lightning arresters to ensure safe electricity delivery to urban populations.
High-Voltage Solutions for Every Requirement.
