FWH-400A FUSE

Product Description

The FWH-400A is a high-speed semiconductor protection fuse designed for high-power industrial applications. It provides ultra-fast fault interruption to protect sensitive equipment such as rectifiers, inverters, UPS systems, and DC drive circuits. This fuse is engineered for high current capacity systems where fast clearing and low energy let-through are critical for equipment safety.

Key Features

• High-speed semiconductor protection fuse
• Fast acting response for short-circuit protection
• Very high interrupting capacity
• Low I²t energy let-through for sensitive devices
• Suitable for AC and DC power systems
• Stud/bolt mount design for secure installation
• Cylindrical cartridge construction
• Reliable protection for power electronics
• Industrial-grade rugged design
• One-time, non-resettable operation

Specifications

1. Product Type: High-Speed Semiconductor Fuse
2. Model: FWH-400A
3. Brand: Eaton Bussmann
4. Fuse Class: Semiconductor / High-Speed Fuse
5. Rated Current: 400A
6. Rated Voltage: 500V AC / 500V DC (some variants up to 750V AC/DC)
7. Interrupting Rating: 200 kA AC / 50 kA DC
8. Response Type: Fast Acting (High-Speed)
9. Mounting Type: Stud / Bolt mount
10. Body Size: Approx. 38.1 mm × 110 mm cylindrical style
11. Power Loss: ~65 W at rated current
12. Application: Drives, rectifiers, UPS, DC common bus, power converters