Shu Guang
Shu Guang
Industrial Grade Protection for High & Medium Voltage Applications
Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Province—the undisputed Electrical Capital of China. We are a premier power technology enterprise integrating R&D, production, sales, and service.
Rooted in history, our predecessor, "Yueqing Shuguang Fuse Factory," was established in 1992. Over the past three decades, we have evolved from a local workshop into a leading global China EFuses Factory, setting benchmarks for safety and reliability in the high-voltage electrical apparatus industry.
Ensuring Power Stability in an Era of Energy Transition
The global demand for high-quality EFuses and high-voltage circuit protection has reached an unprecedented peak. As nations transition toward renewable energy sources and smart grid infrastructures, the reliability of fuses becomes the last line of defense for multibillion-dollar power systems. Today, EFuses are no longer just simple components; they are sophisticated safety devices engineered to handle massive short-circuit currents while maintaining structural integrity.
In the current industrial climate, the push for Decarbonization has led to a surge in solar farms and wind power installations. These localized energy generation sites require specialized high-voltage current-limiting fuses that can withstand fluctuating loads. Furthermore, the rapid electrification of the global transport sector is placing additional stress on distribution networks, necessitating robust Medium Voltage Fuses and HRC Fuse Links to prevent catastrophic equipment failure.
As a leading China High-Quality EFuses supplier, Wenzhou Shuguang Fuse Co., Ltd. observes a clear trend: global buyers are shifting focus from "lowest price" to "highest reliability." This shift is driven by the rising cost of downtime. A single fuse failure in a main substation can result in millions of dollars in lost industrial productivity, making the selection of a certified manufacturer more critical than ever.
Innovating for the Next Generation of Electrical Engineering
The global grid is moving toward higher transmission voltages. We are continuously developing fuses capable of handling 40.5kV and beyond to meet the needs of modern ultra-high voltage networks.
Fuses designed specifically for PV (Photovoltaic) and wind applications, featuring specialized thermal properties to handle the unique cyclic loading of green energy sources.
Integrating sensing technologies with traditional fuse design to provide real-time status monitoring, aiding in the digital transformation of smart substations.
Why International Enterprises Choose Wenzhou Shuguang
As a China EFuses Factory, we provide a vertically integrated solution. From raw material selection to final high-power testing, every step is controlled in-house. This allows us to offer competitive wholesale pricing without compromising the technical integrity required by utility-grade power companies.
We understand the complexities of international tenders and provide full technical documentation to support your procurement process.
Tested and Verified by Leading Global Standards
It is designated by the Ministry of Electric Power Industry to produce high-voltage fuses of various voltage levels, high-voltage current-limiting fuses, high-voltage fuses for power capacitors, voltage transformer protection fuses, zinc oxide arresters, drop-out fuses, high-voltage insulators, etc.
Our products have passed the high-power test station of the Electric Power Research Institute of the Ministry of Electric Power, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, the Xi'an High-voltage Electrical Apparatus Research Institute, and the High-Voltage Electrical Apparatus Laboratory.
The company continues to deepen and improve the quality management system. 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.
Our "Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users for their precision and reliability.
Transformer Protection
Capacitor Protection
Substation Safety
Urban Grids
Connecting China's Quality to the World's Infrastructure
Our products are exported to various provincial power companies in China. A complete sales network has been formed throughout the country. New high-voltage fuses and current-limiting products are exported to Southeast Asia, the Middle East, Africa, and Europe.
Supporting rapid industrialization and urban development in Vietnam, Thailand, and Indonesia.
High-temperature resistant fuses designed for the harsh environmental conditions of utility grids.
Strict adherence to DIN and IEC standards for integration into sophisticated European distribution systems.
Providing cost-effective and durable protection for emerging power infrastructures and rural electrification.
Wide Range of Voltage Protection & Insulation Components
Whether you are a global distributor or a utility project manager, Wenzhou Shuguang Fuse Co., Ltd. provides the technical expertise and manufacturing scale you need.
Contact Our Engineering Team
