Shu Guang
Shu Guang
Located in Yueqing, Zhejiang Province—widely recognized as the Electrical Capital of China—Wenzhou Shuguang Fuse Co., Ltd. is a premier power technology enterprise. We integrate cutting-edge research, meticulous development, and high-scale production to provide global markets with superior protection devices.
Our journey began in 1992 as the "Yueqing Shuguang Fuse Factory." Over the past three decades, we have evolved from a local manufacturer into an international leader in high-voltage protection technology. Today, we stand as a beacon of reliability for power grid infrastructure worldwide.
In the modern industrial era, the demand for CE-Certified High Voltage (HV) Fuses has reached unprecedented heights. As the global energy transition accelerates, power grids are becoming more complex, integrating renewable energy sources like wind and solar. This shift necessitates high-performance circuit protection that meets the rigorous safety standards of the European Union (CE) and other international bodies.
The global HV fuse industry is currently driven by three major trends: Decarbonization, Digitalization, and Decentralization. Modern fuses are no longer just passive safety components; they are critical safeguards for multi-billion dollar infrastructure, including smart substations and massive EV charging hubs.
From the industrial heartlands of Germany to the emerging markets in Southeast Asia, CE-certified fuses are the gold standard for cross-border trade. They ensure that equipment used in diverse environments—from humid tropical zones to sub-zero arctic substations—operates within strict safety parameters.
We are seeing a move toward Current-Limiting HV Fuses that offer faster reaction times and higher breaking capacities. Miniaturization is also key, as urban space constraints demand smaller yet more powerful switchgear components.
Wind farms and solar PV plants require specialized fuse links capable of handling the unique load profiles of renewable generation. Our CE-certified range is specifically tested to endure these cyclic loading conditions.
Wenzhou Shuguang Fuse Co., Ltd. is designated by the Ministry of Electric Power Industry for the production of high-voltage current-limiting fuses and related protection devices. Our technical prowess is validated by elite institutions, including the Electric Power Research Institute and the Xi'an High-voltage Electrical Apparatus Research Institute.
Our commitment to quality is reflected in our adherence to global technical benchmarks:
With a complete quality assurance system, we have maintained ISO 9001:2000 certification, ensuring that every unit leaving our factory is a masterpiece of electrical engineering.
Global procurement teams prioritize reliability, cost-efficiency, and compliance. As a leading China HV Fuse Factory, we provide the perfect balance between high-end technical performance and competitive manufacturing costs. Our products are exported to various provincial power companies in China and extensive markets in Southeast Asia, the Middle East, Africa, and Europe.
Protecting step-down transformers and medium-voltage switchgear in heavy industrial zones.
Ensuring grid stability across national distribution networks and urban ring main units (RMU).
The surge in electric vehicle adoption requires high-voltage fuses for fast-charging stations (EV Fuse links).
We adhere to the principle of "Development by science and technology." Our R&D team continuously improves the material composition of our fuse links for better thermal stability.
We don't just sell products; we provide solutions. New products can be customized and produced according to unique client specifications and localized grid requirements.
High-quality raw materials and sophisticated testing equipment are the backbone of our quality assurance system. Every XRNP and HRC fuse is tested for precision.
Being in Yueqing gives us unparalleled access to the best raw material suppliers and logistical hubs, ensuring shorter lead times for global orders.
Power Grid Transformer Protection
Indoor Switchgear Systems
Outdoor Distribution Equipment
Capacitor Bank Safeguarding
