Why Choose the Mersen P098591 High-Speed Semiconductor Fuse?
The Mersen P098591 is a high-performance Protistor® high-speed cylindrical fuse-link designed to protect sensitive semiconductor components against damaging short-circuit currents. Identified by manufacturer reference FD27GB66V2T, it forms part of Mersen’s 27 × 60 mm gR (gRB) range developed for demanding DC power and railway auxiliary applications.
This fuse-link provides extremely fast, current-limiting fault interruption with low let-through energy, helping to minimise electrical and thermal damage to protected semiconductor devices. Its low I²t characteristics, reduced power losses and extended service life make it suitable for modern DC equipment requiring faster protection than conventional industrial fuse-links can provide.
With a rated current of 2 A, an IEC voltage rating of 660 V DC and a compact 27 × 60 mm cylindrical format, the Mersen P098591 provides dependable protection for railway systems, power converters, rectifiers and industrial DC circuits. Its integrated striker provides clear fuse-operation indication for easier maintenance and fault identification.
Key Advantages
- High-speed fuse-link designed for semiconductor protection.
- 2 A rated current for precise DC circuit protection.
- 660 V DC IEC voltage rating.
- Low I²t performance helps minimise damage to protected components.
- Reduced watt losses support efficient operation and extended service life.
- Integrated mechanical striker simplifies fuse-status identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD27GB66V2T manufacturer reference.
- 2 A rated current.
- 660 V DC rated voltage.
- gR operating class with gRB design characteristics.
- Compact 27 × 60 mm cylindrical fuse-link format.
- Fast-acting and current-limiting protection.
- Integrated mechanical striker indication.
- Designed for elevated operating temperatures.
- Suitable for railway power and auxiliary circuits.
Reliable Protection for Modern DC Equipment
Power semiconductor devices can be permanently damaged by short-circuit currents that develop within milliseconds. High-speed fuse-links such as the Mersen P098591 interrupt these faults rapidly, limiting the energy reaching sensitive components such as diodes, thyristors, rectifiers and power conversion assemblies.
The Mersen Protistor® DC range is developed to meet the improved protection requirements of modern DC equipment. Its low I²t characteristics, reduced watt losses and suitability for elevated operating temperatures support dependable performance in railway, industrial conversion and auxiliary power systems.
Typical Applications
- Railway power circuits.
- Railway auxiliary electrical systems.
- Industrial DC power supplies.
- Power converters and rectifiers.
- Semiconductor protection circuits.
- Battery charging and control equipment.
