Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd. is located in Yueqing, Zhejiang Province, the electrical capital of China. As a premier power technology enterprise, we integrate research, development, production, sales, and service under one roof.
Established in 1992 (formerly known as "Yueqing Shuguang Fuse Factory"), our company has spent over 30 years perfecting the art of electrical protection. Today, we stand as a beacon of reliability for global wholesale capacitor fuses and high-voltage circuit solutions.
The global demand for high-quality capacitor fuses is surging as nations modernize their aging power grids. Capacitor banks are essential for power factor correction and voltage stability, but they require robust protection to prevent catastrophic failures. From industrial manufacturing plants to massive utility substations, reliable fusing technology is the first line of defense against overcurrent and short-circuit events.
The transition toward Renewable Energy is a major driver. Solar and wind farms rely heavily on capacitors to manage power quality, leading to a need for fuses that can handle harmonic distortions and variable loads. Furthermore, the digitalization of grids (Smart Grids) is pushing manufacturers to develop "smarter" fuses with better thermal stability and more precise clearing characteristics.
International buyers are no longer just looking for the lowest price. They demand Compliance with International Standards (IEC, ANSI, DIN) and verifiable test reports. Procurement officers in Europe, North America, and the Middle East prioritize long-term reliability and technical support to minimize downtime in critical infrastructure projects.
Our products are designated by the Ministry of Electric Power Industry. We adhere to the most rigorous international benchmarks to ensure your systems remain safe under all conditions.
In densely populated metropolitan areas (London, Singapore, New York), our capacitor protection fuses prevent localized outages by isolating faulty capacitor units within seconds, ensuring the wider network remains operational.
Mining operations in South Africa and steel mills in Germany utilize our HRC current-limiting fuses to protect expensive machinery from voltage dips and surges caused by reactive power compensation.
Solar farms in the Middle East and wind farms in Southeast Asia use our high-voltage fuses to protect transformer and capacitor banks exposed to extreme temperatures and varying current frequencies.
Located in the "Electrical Capital," we have immediate access to world-class copper, ceramics, and specialized polymers. This allows us to offer premium quality at competitive wholesale prices.
We don't just sell off-the-shelf products. Our engineering team can customize dimensions, current ratings, and melting characteristics to meet specific project blueprints.
With a complete sales network throughout China and a growing presence in Africa, Europe, and the Middle East, we understand the logistics and documentation required for seamless international trade.
All performance tests are qualified by the High-Voltage Electrical Apparatus Laboratory.
Power capacitors play a pivotal role in maintaining the efficiency of modern electrical networks. However, due to their energy-storage nature, internal faults can lead to significant pressure buildup and casing rupture. This is where Shu Rong brand capacitor fuses excel. Our fuses are engineered to disconnect faulty capacitor units from the bank before the fault current causes peripheral damage.
In recent years, Wenzhou Shuguang Fuse Co., Ltd. has developed rapidly. Our economic and social benefits have improved significantly through the continuous deepening of our quality management system. We utilize high-quality raw materials and sophisticated testing equipment to ensure every unit leaving our factory meets the highest technical performance standards.
Our products are exported to various provincial power companies across China and international markets. We have established solid business contacts in Southeast Asia, the Middle East, Africa, and Europe. Domestic product sales consistently rank among the top in the industry, proving our authoritative position as a leading factory for high-voltage current-limiting fuses and capacitor protection devices.
We adhere to the principle: "Development by science and technology, and survival by quality." We sincerely welcome partners from around the world to discuss long-term cooperation for the prosperity of the electric power industry.
Whether you need standard capacitor fuses or custom high-voltage solutions, Wenzhou Shuguang Fuse Co., Ltd. is your trusted manufacturing partner in China.
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