Shu Guang
Shu Guang
Welcome to Wenzhou Shuguang Fuse Co., Ltd., a powerhouse in the electrical technology sector located in Yueqing, Zhejiang—famously known as the "Electrical Capital of China." Our journey began in 1992 as the Yueqing Shuguang Fuse Factory, and today, we stand as a premier China OEMPtFuses factory integrating R&D, manufacturing, and global sales.
With over 30 years of specialized experience, we have mastered the art of high-voltage circuit protection. As a designated producer for the Ministry of Electric Power Industry, we specialize in high-voltage current-limiting fuses, voltage transformer protection, and zinc oxide arresters. Our commitment to quality and reliability is the cornerstone of our global reputation.
The global power infrastructure is undergoing a massive transformation. As nations shift toward smart grids and renewable energy, the demand for reliable transformer protection (PtFuses) has reached an all-time high. In industrial hubs across Europe, North America, and Southeast Asia, PtFuses are the silent guardians of multi-billion dollar power assets.
Modern trends point toward miniaturization and higher interruption capacities. With the rise of Electric Vehicles (EVs) and localized renewable storage, fuses must now handle more frequent switching and harsher thermal environments. Our R&D team is constantly innovating to meet these digital-age requirements.
Today's procurement managers aren't just looking for parts; they are looking for compliance and longevity. The demand is centered on products that meet strict international standards like IEC 60282-1 and DIN 43625. Reliability is the primary KPI in the global supply chain for power protection.
Our authority in the field is backed by rigorous testing and international certification. Our products have successfully passed evaluations at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute.
We manufacture according to a wide array of global technical conditions to ensure our PtFuses fit any grid worldwide:
Our ISO9001:2000 quality system is comprehensive. We believe in "Survival by Quality." From high-purity silver elements to high-grade ceramic casings, every component is inspected. We use sophisticated testing equipment to verify the breaking capacity and time-current characteristics of every batch of OEMPtFuses.
In Europe and Southeast Asia, our fuses are widely applied in indoor switchgears and outdoor substations. They protect voltage transformers from short-circuits, ensuring that a minor fault doesn't lead to a catastrophic grid failure. Our XRNP current-limiting fuses are the industry standard for potential transformer protection.
As a leading China factory, we offer unparalleled OEM flexibility. Whether you need a specific fuse link length (e.g., 254mm or 520mm) or a custom current rating for a unique industrial machine, our engineering team can provide rapid prototyping and production.
Buying directly from a Wenzhou factory means you benefit from the world's most integrated electrical supply chain. We offer competitive pricing without compromising on the high-performance raw materials required for medium and high-voltage applications.
In recent years, Wenzhou Shuguang Fuse Co., Ltd. has developed rapidly. Our "Shu Rong" brand has enjoyed a high reputation among domestic and foreign users. We continue to deepen and improve our management system, emphasizing the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance.
Our products are not only exported to various provincial power companies within China but have also established a presence in Southeast Asia, the Middle East, Africa, and Europe. We rank among the top in our industry for domestic sales and international export volume.
We adhere to the principle of "Development by science and technology, and survival by quality." We sincerely welcome customers from home and abroad to discuss cooperation. Let's work together for the prosperity and development of the electric power industry.
