Shu Guang
Shu Guang
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Wenzhou Shuguang Fuse Co., Ltd., established in 1992 (formerly known as "Yueqing Shuguang Fuse Factory"), stands as a pillar of excellence in China's electrical capital, Yueqing, Zhejiang Province. With over three decades of iterative innovation, we have transitioned from a specialized factory to a global power technology enterprise integrating R&D, advanced manufacturing, and strategic service.
As a designated manufacturer by the Ministry of Electric Power Industry, our lineage is defined by rigorous quality and technical superiority. We specialize in high-voltage current-limiting fuses, power capacitor protection, and zinc oxide arresters that form the backbone of modern electrical grids.
Years Experience
Countries Exported
IEC Compliant
9001:2000 Certified
In the era of electric mobility, BestEvFuses represents the pinnacle of circuit protection. Unlike traditional AC fuses, EV fuses must handle high-voltage DC environments where arc quenching is significantly more challenging. Our technical roadmap focuses on three core pillars:
Our fuses utilize high-purity quartz sand with specific grain sizes, treated with a proprietary chemical process to ensure rapid thermal absorption and arc suppression within milliseconds of a fault detection.
Using silver-plated copper elements and high-strength ceramic bodies, our BestEvFuses withstand extreme vibration and thermal cycling common in automotive environments (ISO 16750 standards).
The future of EV protection lies in "Smart Fuses." We are currently developing sensor-integrated fuse links that provide real-time data on temperature and current health to the Vehicle Control Unit (VCU).
Located in the heart of the Zhejiang Electrical Cluster, Wenzhou Shuguang Fuse leverages a world-class supply chain ecosystem. This geographical advantage allows us to source raw materials with zero lead-time friction and scale production rapidly to meet global demand.
Production Prowess: Our facility employs automated assembly lines for HRC current-limiting fuses, ensuring every unit meets the precision required by IEC 60282-1 and DIN 43625 standards.
While many competitors struggle with lead times, our vertical integration—from mold design to final high-power testing—allows us to offer a 30% faster turnaround on customized high-voltage solutions.
Our commitment to safety is validated by the world's most stringent testing bodies. Our products undergo rigorous evaluation at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center.
ANSIC37.42, DIN43625, BS2692, IEC282-2-1995, IEC60644, IEC60470, IEC60282-1, IEC269-2.
GB15166.1, GB15166.2, GB15166.5, GB13593, DL/T640-1997, VDE0636 standards.
Full ISO9001:2000 Quality System Certification ensuring traceability for every batch.
We don't just ship products; we provide Local Application Engineering Support. Our fuses are currently deployed in diverse environments:
Protecting DC fast-charging stations (Level 3) across Europe and Southeast Asia, ensuring grid stability during peak load cycles.
Providing high-voltage current-limiting fuses for factory transformers in the Middle East and Africa, where voltage fluctuations are frequent.
Customized solar PV string fuses and capacitor protection links for large-scale utility solar farms.
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Ready to secure your grid? Contact our engineering team today for a technical consultation.