HRW5-35 Drop-Out High Voltage Fuse

The HRW5 series drop-out fuse is designed for outdoor high-voltage protection in overhead line networks and distribution transformers up to 12kV. It provides effective overcurrent protection by interrupting short-circuits and overloads with a visible fuse disconnection.

Commonly used in rural grids, substations, and industrial feeders, the HRW5 fuse is a reliable and cost-effective safety solution in medium voltage networks.

🔧 Key Features

• Rated voltage: 12kV

• Rated current: 100A / 200A

• Drop-out structure for easy fuse replacement

• Porcelain or polymer insulator options are available

• Corrosion-resistant hot-dip galvanized iron bracket

• Arc-extinguishing tube with high thermal endurance

• Compatible with DIN and ANSI mounting standards

📐 Technical Specifications

✅ Compliance & Standards

• GB/T 15166.3 – High-voltage fuses for AC systems

• IEC 60282-2 – High-voltage fuses: expulsion type

• Certified under ISO 9001 / ISO 14001 / ISO 45001

• Type test reports and CE marking are available upon request

🧰 Application Scenarios

• Distribution transformer protection (10kV, 11kV, 12kV)

• Overhead power lines and rural grids

• Substation auxiliary circuit protection

• Outdoor capacitor or reactor bank disconnection

• Backup protection for vacuum circuit breakers (VCBs)

🌍 Real Case Example: Power Grid Upgrade – South Africa (2021)

In 2021, over 5,000 HRW5 drop-out fuses were installed in Limpopo Province to improve grid reliability in remote areas. Each fuse assembly included an anti-pollution ceramic insulator, rated at 12kV/100A.

• Cut total transformer outage time by 30%
• Enabled visual fault isolation for faster maintenance
• Compatible with local standard cross-arm brackets

❓ Frequently Asked Questions (FAQ)

• Can this fuse be used in high-pollution outdoor areas?
Yes. Polymer and anti-pollution porcelain options are available.

• How is the fuse replaced after breaking?
The drop-out design allows easy fuse tube removal and replacement using a hot stick.

• What fuse links are compatible?
DIN, ANSI, and custom-sized links can be configured depending on your grid standard.

• Does the fuse provide visible disconnection?
Yes. After blowing, the fuse tube drops visibly, confirming isolation.

• Can it work with distribution transformers directly?
Absolutely. It is commonly mounted on poles to protect 10–12kV transformers.

📞 Contact Our Technical Team

Need drawings, installation guide, or OEM inquiry?

• Engineer: Thor

• Company: Wei Shoe Elec

• 📞 Tel: +86-0577-62788197

• 📱 WhatsApp: +86 159 5777 0984

• 📧 Email: [email protected]