Shu Guang
Shu Guang
Established in 1992 as "Yueqing Shuguang Fuse Factory," Wenzhou Shuguang Fuse Co., Ltd. has evolved into a premier power technology enterprise. Located in Yueqing, Zhejiang—the renowned Electrical Capital of China—we integrate R&D, production, sales, and service to provide world-class electrical protection solutions.
With over three decades of experience, our brand "Shu Rong" has become synonymous with reliability and high performance. We specialize in high-voltage current-limiting fuses, potential transformer (PT) fuses, and high-voltage insulators, serving critical infrastructure globally.
Years Experience
9001:2000 Certified
Export Countries
Test Qualified
As the world transitions toward Smart Grids, the demand for High-Quality Potential Transformer Fuses is skyrocketing. These components are vital for protecting the sophisticated sensors and monitoring equipment used in modern power distribution networks. High precision and fast response times are no longer optional—they are essential for grid stability.
The global shift to solar and wind energy has created new challenges for electrical protection. Potential transformer fuses must now operate in diverse environmental conditions, from high-temperature solar farms to high-humidity offshore wind stations. Our fuses are engineered to withstand these localized application scenarios with unparalleled durability.
Industry 4.0 is influencing fuse manufacturing. Modern procurement needs are shifting toward "smart fuses" that can provide status feedback. While the physical fuse remains a mechanical safeguard, its integration into digital monitoring systems is the latest development trend global enterprises are following.
Global procurement teams now prioritize strict adherence to international standards like IEC 60282-1 and DIN 43625. Reliability is the cornerstone of industrial safety, as a single fuse failure in a high-voltage substation can lead to millions of dollars in equipment damage and operational downtime.
Our commitment to quality is backed by rigorous testing. Our products are designated by the Ministry of Electric Power Industry and have passed evaluations at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute.
Our highest technical performance meets: ANSIC37.42, DIN43625, BS2692, IEC282-2-1995, IEC60644, IEC60470, IEC60282-1, IEC269-2 and national standards GB15166.1, GB15166.2, DL/T640-1997, VDE0636.
We don't just sell products; we provide tailored solutions. Whether it's a specific dimension for a European DIN-standard switchgear or a specialized voltage rating for Southeast Asian grids, our factory is equipped to customize production according to unique user needs.
Located in Yueqing, we have immediate access to high-quality raw materials and advanced logistics. This allows us to offer competitive pricing without compromising the technical integrity of our high-voltage fuses.
In recent years, our company has developed rapidly, continuously deepening and improving our quality management systems. We use sophisticated testing equipment to ensure every performance indicator meets or exceeds international benchmarks.
Our products are exported across China and to Southeast Asia, the Middle East, Africa, and Europe. We have established long-term business contacts with major provincial power companies and international EPC contractors.
Expertise: Our engineers have spent decades refining the arc-extinguishing capabilities of our fuses. Authoritativeness: Being designated by the Ministry of Electric Power Industry proves our standing in the industry. Trustworthiness: With a legacy from 1992, we have survived and thrived through quality and innovation.
The products are exported to various provincial power companies in China, and a complete sales network has been formed throughout the country. Internationally, our new high-voltage fuses and high-voltage current-limiting fuse products have gained high reputations in Southeast Asia, the Middle East, Africa, and Europe. We rank among the top in the industry for domestic and international sales.
We adhere to the principle: "Development by science and technology, and survival by quality." We sincerely welcome global partners to discuss cooperation and work together for the prosperity of the electric power industry.
