Shu Guang Shu Guang

Low Voltage Fuse Manufacturer & Supplier serving Cambodia

Advancing Cambodia’s Industrial Power Protection with IEC-Certified Low & High Voltage Fuse Solutions. Specialized in Smart Grid Integration and High-Efficiency Circuit Protection.

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The Evolution of Cambodia's Power Infrastructure

As Cambodia transitions from a primarily agricultural economy to an industrial powerhouse, the stability of its electrical grid has become paramount. With the rapid expansion of the Garment, Footwear, and Travel Goods (GFT) sectors, and the massive growth in the Sihanoukville Special Economic Zone (SSEZ), the demand for reliable circuit protection has never been higher.

Wenzhou Shuguang Fuse Co., Ltd. recognizes the unique challenges faced by Cambodia’s power sector, including tropical humidity, varying voltage stability in rural areas, and the necessity for rugged, IEC-compliant hardware that can withstand heavy industrial cycles. We provide comprehensive solutions that align with EDC (Electricite du Cambodge) standards, ensuring that local factories and commercial hubs maintain uptime even under demanding conditions.

Industrial Manufacturing Center

Our Story: Decades of Fuse Engineering Excellence

Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Province—the globally recognized "Electrical Capital of China." We are a power technology enterprise integrating research, development, production, sales, and service. Our legacy dates back to 1992, established as the "Yueqing Shuguang Fuse Factory."

For over 30 years, we have specialized in the manufacturing of high-voltage and low-voltage fuses that meet the most stringent international criteria. Our commitment to Information Gain in the SEO landscape is mirrored by our commitment to Technical Gain in the factory. We don't just supply fuses; we provide engineering data and safety assurances that protect multi-million dollar investments in the Cambodian energy grid.

⚙️ Est. 1992

30+ Years Experience

🌍 Global Reach

Exporting to 50+ Countries

🛡️ Certified

ISO9001:2000 & IEC

Fuse Production Line

Global Certifications & Cambodia Compliance

Meeting EDC and International standards for maximum safety and reliability.

Our products are designated by the Ministry of Electric Power Industry to produce high-voltage fuses of various voltage levels, current-limiting fuses, and zinc oxide arresters. The highest technical performance of Shuguang products meets:

  • ANSI C37,42
  • DIN 43625 Standard
  • BS 2692 British Standard
  • IEC 60282-1 / IEC 282-2
  • IEC 60644 (Motor Protection)
  • VDE 0636 German Standard
  • GB 15166.2 (Chinese National)
  • DL/T 640-1997 Compliance

All products have passed the high-power test station of the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center.

ISO Certificate Quality Certificate Testing Report

Macro Industry Solutions & Technological Roadmap

1. Grid Modernization in Southeast Asia

Cambodia's "Power Development Plan (2022-2040)" emphasizes renewable energy and grid reliability. Our RT18 series and HRC fuses are essential for the integration of solar farms in Kampong Chhnang and the protection of transformer stations across the Mekong region.

2. The Rise of Photovoltaics (PV) and EV

As Cambodia embraces green energy, the need for specialized DC fuses grows. We are expanding our technology roadmap to include high-voltage DC fuses specifically designed for PV inverters and EV charging piles, ensuring low power loss and high breaking capacity.

3. Industrial Automation Protection

Modern factories in the Phnom Penh area require fuses with precise "Time-Current" characteristics. Our current-limiting fuses prevent catastrophic damage to expensive PLC and motor systems by interrupting faults in milliseconds.

Future Outlook 2025-2030

We are investing in "Smart Fuse" technology—incorporating micro-sensors to monitor fuse health in real-time. This aligns with Cambodia's Industry 4.0 goals, reducing manual inspections in remote substation locations.


  • 🚀 High Breaking Capacity (up to 120kA)
  • 🌡️ Tropicalization: Enhanced Anti-Corrosion
  • 🔋 BESS: Battery Energy Storage Protection

Industrial Applications in Cambodia

Commercial Building Protection

Phnom Penh Commercial Hubs

Reliable LV fuses for skyscraper distribution panels and HVAC systems.

Industrial Grid Protection

Sihanoukville Industrial Grid

Medium voltage solutions for heavy manufacturing and shipping ports.

Solar Farm Protection

Cambodian Solar Initiatives

Tail tail wire recovery and capacitor protection for renewable sites.

Remote Substation

Rural Electrification Projects

Drop-out fuse cut-outs for reliable power delivery to rural provinces.

Frequently Asked Questions (FAQ)

Expert answers for Cambodian procurement managers and electrical engineers.

What is the lead time for shipping to Phnom Penh or Sihanoukville?

Typically, standard low-voltage fuses are shipped within 7-15 days. For custom high-voltage orders, our manufacturing cycle is 20-30 days, with direct sea freight to Sihanoukville Autonomous Port (PAS) taking approximately 10-14 days from Ningbo or Shanghai.

Do your fuses comply with EDC (Electricite du Cambodge) technical requirements?

Yes. Our fuses meet IEC 60282 and IEC 60644 standards, which are the primary reference for EDC's technical specifications. We provide complete testing reports from the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center to facilitate project approval.

How do you ensure fuse reliability in Cambodia's high-humidity environment?

We use high-grade porcelain and corrosion-resistant silver-plated copper for all contact points. Our "Tropicalized" range features additional environmental sealing to prevent oxidation and ensure stable resistance over years of service.

Can you provide customized technical parameters?

Absolutely. As a direct manufacturer, we can adjust the current-limiting characteristics, physical dimensions, and mounting styles to match legacy equipment often found in older Cambodian substations or modern European-standard industrial parks.