Why Choose the Mersen K098587 High-Speed Semiconductor Fuse?
The Mersen K098587 is a high-performance Protistor® high-speed cylindrical fuse designed to protect sensitive semiconductor components and DC electrical circuits against damaging short-circuit currents. Identified by catalogue number FD27GB66V1,5T, this fuse forms part of the Mersen Protistor® 27 × 60 gR (gRB) range developed for demanding railway power and auxiliary circuit applications.
The K098587 provides a rapid operating response and low I²t performance, helping to minimise the electrical energy passed through to protected components during a fault. Its reduced watt losses and long service life support dependable protection in modern DC equipment operating under challenging electrical and thermal conditions.
With a rated current of 1.5 A, an IEC voltage rating of 660 V DC and a compact 27 × 60 mm cylindrical format, the Mersen K098587 is suitable for railway equipment, power conversion systems and industrial semiconductor circuits. An integrated striker provides clear fuse-operation indication and can support remote signalling when used with compatible accessories.
Key Advantages
- High-speed semiconductor fuse designed for DC circuit protection.
- 1.5 A rated current for precise protection of sensitive equipment.
- 660 V DC IEC voltage rating for industrial and railway applications.
- Low I²t performance helps minimise damage to semiconductor components.
- Reduced power losses support efficient and reliable operation.
- Integrated striker indication simplifies fault identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD27GB66V1,5T catalogue number.
- 1.5 A rated current.
- 660 V DC rated voltage.
- gR (gRB) high-speed semiconductor protection characteristic.
- Compact 27 × 60 mm cylindrical fuse-link design.
- Integrated mechanical striker.
- Low let-through energy during short-circuit conditions.
- Designed for operation at elevated temperatures.
- RoHS-compliant construction.
Reliable Protection for Sensitive DC Equipment
Semiconductor components can be permanently damaged by very short overcurrent events. High-speed fuses such as the Mersen K098587 interrupt fault currents rapidly and limit the let-through energy reaching protected components, helping safeguard rectifiers, diodes, thyristors and other power electronic devices.
The Mersen Protistor® DC fuse range is developed for equipment that may operate at higher temperatures than conventional fuse applications. Its low I²t characteristics, reduced watt losses and dependable cylindrical construction support reliable operation in railway power, auxiliary circuits and industrial DC systems.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC power supplies.
- Power converters and rectifiers.
- Semiconductor protection circuits.
- Battery-powered industrial equipment.
- Automation and control systems.
