The FWH-40A 500V Fuse is a high-speed semiconductor protection fuse designed for fast interruption of fault currents in power electronic systems. It is commonly used in drives, rectifiers, inverters, and industrial control circuits to protect sensitive semiconductor devices such as IGBTs, SCRs, and diodes from short-circuit damage.
Key Features
- High-speed semiconductor protection for critical electronic systems
- Fast fault clearing to protect IGBTs, SCRs, and diodes
- High breaking capacity for industrial fault conditions
- Low I²t let-through energy for improved device safety
- Suitable for AC and DC industrial power systems
- Robust construction for high thermal and electrical stress
- Reliable operation in power converters and drive systems
- Compact stud/bolt-type mounting design for secure connection
Specifications
- Model: FWH-40A
- Type: High-speed semiconductor fuse (fast-acting)
- Current Rating: 40A
- Voltage Rating: 500V AC / 500V DC
- Breaking Capacity: up to 200kA AC / 50kA DC (industrial grade)
- Body Type: Cylindrical / stud-mount bolt-in
- Size: approx. 13/16 in × 3-3/16 in (standard FWH body)
- Fuse Class: Semiconductor protection (ultra-fast / aR type)
- Mounting Type: Stud/bolt connection
- Application: VFD drives, rectifiers, inverters, motor drives, UPS systems, industrial automation, semiconductor protection systems
