Why Choose the Mersen K099507 High-Speed Semiconductor Fuse?
The Mersen K099507 is a high-performance Protistor® high-speed cylindrical fuse designed to protect sensitive power semiconductor devices against damaging overcurrents and short circuits. Identified by catalogue number FD22GB44V100T, it belongs to the Mersen Protistor® 22 × 58 gLB range developed for dependable protection in demanding DC power applications.
This fuse provides rapid fault interruption and clears both overload and short-circuit conditions, helping to reduce the electrical and thermal stress placed on protected equipment. Its high interrupting capability makes it suitable for circuits containing rectifiers, inverters and other power conversion components that require faster protection than conventional industrial fuse-links can provide.
With a rated current of 100 A, an IEC voltage rating of 440 V DC and a compact 22 × 58 mm cylindrical format, the Mersen K099507 supports reliable installation in industrial power systems. An integrated striker provides clear fuse-operation indication and can be used with compatible signalling accessories to simplify fault detection.
Key Advantages
- High-speed fuse designed for power semiconductor protection.
- 100 A rated current for industrial DC power circuits.
- 440 V DC IEC voltage rating.
- Clears overload and short-circuit fault conditions.
- High interrupting performance helps protect sensitive electronic components.
- Integrated striker indicator simplifies fuse-status identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD22GB44V100T catalogue number.
- 100 A rated current.
- 440 V DC rated voltage.
- gLB high-speed fuse characteristic.
- Compact 22 × 58 mm cylindrical fuse-link design.
- Integrated mechanical striker indication.
- Clip-mounted installation format.
- Designed to support selective coordination between circuit fuses.
- RoHS-compliant construction.
Reliable Protection for DC Power Electronics
Power semiconductor devices can be permanently damaged by overcurrents that last only a fraction of a second. High-speed fuse-links such as the Mersen K099507 interrupt faults rapidly, helping to limit the energy reaching rectifiers, inverters and other sensitive power electronic components.
The Mersen Protistor® 22 × 58 gLB range is engineered to clear overloads while supporting improved safety and selective coordination within electrical distribution systems. Its compact cylindrical construction makes it suitable for integration into industrial control panels, conversion equipment and auxiliary DC circuits.
Typical Applications
- Industrial rectifiers.
- Power inverters and converters.
- Uninterruptible power supply systems.
- Railway traction auxiliary circuits.
- Reduced-voltage motor starters.
- Power semiconductor protection circuits.
