Product Description: Bussmann FWH-80A High Speed Fuse

Overview

The Bussmann FWH-80A High Speed Fuse by Eaton delivers ultra-rapid circuit protection for sensitive semiconductor equipment. Engineered for precision and reliability, this 80-amp fuse safeguards high-value electronics like inverters, rectifiers, and drives from damaging overcurrent events in critical applications.

Key Features

✅ Ultra-Fast Response

• Clears fault currents in microseconds to minimize energy let-through (I²t), protecting vulnerable semiconductors like IGBTs and diodes.

✅ High Voltage Rating

• Rated for 500V AC/DC or 690V AC (model-specific), ideal for industrial power systems and renewable energy infrastructure.

✅ Robust Construction

• Ceramic body with quartz sand filler ensures superior arc quenching.
• Silver-plated copper terminals reduce resistance and prevent corrosion.

✅ Safety & Compliance

• Meets UL 248-10, IEC 60269-4, and CSA standards.
• 200kA breaking capacity at 500V AC for extreme fault scenarios.

✅ Optimized for Power Electronics

• Designed for:
  • Variable Frequency Drives (VFDs)
  • Uninterruptible Power Supplies (UPS)
  • Solar inverters and EV charging stations
  • Industrial motor controls

Technical Specifications

*Verify exact voltage rating per model variant.
**Dimensions may vary slightly by configuration.

Why Choose the FWH-80A?

• Minimize Downtime: Prevents costly semiconductor failures in mission-critical systems.
• Global Compliance: Certified for use in North American, European, and international markets.
• Trusted Performance: Backed by Eaton’s legacy of industrial-grade circuit protection.

Ideal for engineers and OEMs seeking uncompromising protection for high-efficiency power conversion systems.

Note: Always confirm voltage ratings and compliance requirements for your specific application.