Why Choose the Mersen H098562 Protistor® High-Speed Fuse?
The Mersen H098562 is a high-performance Protistor® cylindrical semiconductor fuse designed to protect sensitive power electronic components in demanding DC systems. Rated at 125 A and 440 V DC, it provides rapid fault interruption to help minimise thermal and electrical damage to semiconductor devices during overload and short-circuit conditions.
Part of the Mersen Protistor® 27 × 60 mm gLB series, the H098562 combines a compact cylindrical design with low I²t performance, reduced power losses and dependable operation at elevated temperatures. These characteristics make it particularly suitable for modern DC equipment where conventional protective devices may not respond quickly enough to safeguard valuable semiconductor components.
The fuse incorporates an integrated striker indication system and provides a maximum rated breaking capacity of 100 kA DC. Its robust ceramic body, silver-plated copper ferrule terminals and clip-mounted format make it suitable for railway power circuits, auxiliary systems, industrial converters and other critical DC power applications.
Key Advantages
- High-speed gLB semiconductor protection characteristic.
- 125 A rated current for demanding power electronic circuits.
- 440 V DC voltage rating for industrial DC systems.
- 100 kA DC breaking capacity for dependable fault interruption.
- Low I²t performance helps minimise damage to protected components.
- Integrated striker provides clear fuse-operation indication.
Key Features
- Mersen Protistor® high-speed fuse series.
- 125 A rated current.
- 440 V DC rated operating voltage.
- gLB operating characteristic.
- 27 × 60 mm cylindrical fuse format.
- Integrated striker indication mechanism.
- Clip mounting for compatible cylindrical fuse holders.
- Silver-plated copper ferrule terminals.
- Durable ceramic insulating body.
- RoHS compliant.
High-Speed Protection for Critical DC Equipment
Power semiconductor components can be permanently damaged by fault energy before conventional protective devices have time to respond. The Mersen H098562 is engineered to interrupt damaging currents rapidly, reducing the thermal and electrical stress imposed on diodes, thyristors, rectifiers and other sensitive semiconductor assemblies.
Its high current rating, low let-through energy and integrated striker make it particularly suitable for railway and industrial DC systems. By limiting fault energy and providing clear operating indication, the fuse helps improve equipment reliability, simplify maintenance and extend the service life of valuable power electronic components.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC power converters.
- Traction and transportation equipment.
- Rectifiers and inverter systems.
- Reduced-voltage motor starters.
- Industrial DC power supplies.
- Protection of diodes, thyristors and semiconductor modules.
