The FWH-400A is a 400-amp high-speed fuse specifically designed for the protection of power semiconductors such as IGBTs, SCRs, and diodes. It provides an ultra-fast response to overcurrent events, making it ideal for use in high-performance industrial and power conversion systems.
- Current Rating: 400 A
- Voltage Rating: 500 V AC / 500 V DC
- Interrupting Rating: 200,000 A (AC), 50,000 A (DC)
- Fuse Type: High-speed (very fast-acting), non-time-delay
- Mounting Style: Bolt-on (stud-type terminals)
- Body Style: Cylindrical cartridge with blade terminals
- Dimensions (approx.): 38 mm diameter × 110 mm length
- Construction: Ceramic/fiberglass body for excellent arc containment
- Melting I²t (typical): Approximately 19,200 A²s
- Indicator: Non-indicating type (no built-in blown-fuse signal)
