Shu Guang
Shu Guang
The global demand for ceramic cartridge fuses has seen an unprecedented surge as industrial automation and renewable energy infrastructure expand across continents. Unlike glass fuses, ceramic cartridge fuses offer significantly higher breaking capacities, making them indispensable in high-current applications where safety and thermal stability are paramount. In the current industrial landscape, these components are no longer just "simple links" but are precision-engineered safety devices designed to protect multi-million dollar investments in machinery and power grids.
The global shift toward EV (Electric Vehicles) and Solar Energy has created a massive requirement for high-reliability fuses that can handle DC currents and rapid thermal cycling.
Smart factories rely on precision electronic protection. Ceramic fuses provide the high rupture capacity (HRC) needed to safeguard sensitive PLC and CNC equipment.
With the rollout of 5G infrastructure, compact and efficient fuse designs are required for base station power units, driving innovation in miniaturized ceramic fuses.
Analysts predict a steady 5.8% CAGR for the fuse industry, with the Asia-Pacific region leading both production and consumption of medium to high voltage fuses.
Wenzhou Shuguang Fuse Co., Ltd. is located in Yueqing, Zhejiang Province, the electrical capital of China. We are a power technology enterprise integrating research, development, production, sales, and service. The legacy of our expertise dates back to 1992, when our predecessor, "Yueqing Shuguang Fuse Factory," was established.
Over the past three decades, we have evolved from a local workshop into a designated manufacturer for the Ministry of Electric Power Industry. Our focus remains steadfast: producing high-voltage fuses of various voltage levels, current-limiting fuses, and specialized protection for power capacitors and transformers.
Contact Our Expert TeamIn recent years, our company has developed rapidly, and its economic and social benefits have improved significantly. We continue to deepen and improve our quality management system, ensuring we never exceed our long-term development capabilities. While vigorously developing new products, we have always attached importance to the process flow.
High-quality raw materials and sophisticated testing equipment are the backbone of our quality assurance system. All performance indicators are in line with corresponding technical conditions. Furthermore, our R&D team can customize and produce new products at any time according to specific user needs. The "Shu Rong" brand has rightfully earned a high reputation among domestic and international users for reliability and precision.
Global procurement managers today prioritize "Supply Chain Resilience" and "Standard Compliance." Choosing a China ceramic cartridge fuse factory like Shuguang offers the advantage of massive scale combined with technical agility. Our products are engineered to thrive in diverse localized environments:
Used in high-rise building distribution boards across the Middle East and SE Asia to prevent electrical fires and equipment damage during power surges.
Our ceramic fuses are treated to resist humidity and salt spray, making them ideal for shipping vessels and offshore wind farm power converters.
High-vibration resistance is key for rolling stock. Our fuses provide consistent protection for auxiliary power circuits in high-speed rail systems.
Vital for protecting battery modules in large-scale storage systems, preventing cascading failures in energy grids.
Our company's products have passed rigorous testing at the High-Power Test Station of the Electric Power Research Institute, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, and the Xi'an High-voltage Electrical Apparatus Research Institute. All performance tests have been qualified under extreme conditions.
Our highest technical performance meets and exceeds:
ANSIC37,42 • DIN43625 • BS2692 • IEC282-2-1995 • IEC60644 • IEC60470 • IEC60282-1 • IEC269-2 • GB15166.1 • GB15166.2 • GB15166.5 • GB13593 • DL/T640-1997 • VDE0636
Our products are exported to various provincial power companies in China, forming a complete domestic network. Globally, our reach extends to Southeast Asia, the Middle East, Africa, and Europe. We consistently rank among the top in the industry for domestic and international sales volume.
We adhere to the principle of "Development by science and technology, and survival by quality." As a direct factory, we offer:
• Factory-Direct Pricing
• Rigorous Quality Control
• Rapid OEM/ODM Customization
• Professional Technical Support
