Product Description
The FWH-500A is a high-speed semiconductor protection fuse designed for heavy-duty industrial power systems. It provides ultra-fast fault interruption to protect sensitive power electronics such as rectifiers, inverters, UPS systems, and DC drive equipment. This fuse is engineered for very high current applications where reliable short-circuit protection and low energy let-through are critical.
Key Features
- High-speed semiconductor protection fuse
- Designed for very high current industrial applications
- Fast acting response for short-circuit protection
- Extremely high interrupting capacity
- Low I²t energy let-through for sensitive components
- Suitable for AC and DC power systems
- Robust stud-mount / bolt-in design
- Low power loss operation
- Reliable protection for power conversion systems
- Maintenance-free one-time protection
Specifications
- Product Type: High-Speed Semiconductor Fuse
- Model: FWH-500A
- Brand: Eaton Bussmann
- Fuse Class: High-Speed / Semiconductor Fuse
- Rated Current: 500A
- Rated Voltage: 500V AC / 500V DC (up to 750V AC/DC in some variants)
- Interrupting Rating: Up to 200 kA at 1000V AC
- DC Interrupting Rating: 50 kA at 500V DC
- Response Type: Fast Acting (High-Speed)
- Mounting Type: Stud / Bolt-in
- Connection Type: Blade end to blade end
- Body Size: Approx. 2″ × 4.3″ industrial cartridge style
- Power Loss: ~84 W at rated current

