Why Choose the Mersen T098687 Protistor High-Speed Fuse?
The Mersen T098687, catalogue number FD14GB44V40T, is a high-speed cylindrical semiconductor fuse designed to provide dependable protection for sensitive DC power electronic equipment against overloads and short-circuit faults. As part of the Mersen Protistor® 14 × 51 mm gLB series, it is engineered for industrial DC systems, railway auxiliary circuits and power conversion equipment requiring rapid fault interruption and reliable semiconductor protection.
Designed with low let-through energy and exceptional current-limiting performance, the T098687 helps minimise thermal and mechanical stress on semiconductor devices during fault conditions. Its compact ceramic body, silver-plated copper ferrule terminals and integrated striker provide reliable operation while simplifying maintenance through clear fuse status indication.
With a rated current of 40 A, a 440 V DC IEC voltage rating and a 100 kA DC breaking capacity, the T098687 is ideally suited for protecting converters, rectifiers, inverters, UPS equipment and railway auxiliary power systems where dependable semiconductor protection is essential.
Key Advantages
- High-speed gLB semiconductor fuse for DC power electronics.
- 40 A rated current for industrial semiconductor applications.
- 440 V DC IEC voltage rating.
- 100 kA DC breaking capacity for exceptional fault interruption.
- Integrated striker indicator for remote fuse monitoring.
- Low I²t helps minimise damage to semiconductor devices.
- Compact 14 × 51 mm cylindrical format.
- Designed for demanding industrial and railway environments.
Key Features
- Mersen Protistor® high-speed fuse series.
- Manufacturer item number T098687.
- Catalogue number FD14GB44V40T.
- 40 A rated current.
- 440 V DC IEC rated voltage.
- gLB utilisation characteristic.
- Integrated striker indication.
- 14 × 51 mm cylindrical fuse format.
- Silver-plated copper ferrule terminals.
- Clip mounting installation.
- RoHS compliant.
Reliable Protection for DC Power Electronics
High-speed semiconductor fuses are specifically engineered to interrupt fault currents before excessive thermal energy can damage sensitive power electronic components. Their rapid response helps reduce downtime while extending the service life of converters, rectifiers and other semiconductor-based equipment.
The Mersen T098687 combines a compact footprint, exceptionally high interrupting capacity and integrated striker indication, making it suitable for industrial rectifiers, inverters, UPS equipment, renewable energy systems and railway auxiliary power circuits requiring dependable DC protection.
Typical Applications
- Industrial rectifiers.
- Power inverters.
- UPS systems.
- Railway auxiliary circuits.
- Industrial DC converters.
- Power semiconductor protection.
- Renewable energy power conversion.
- Industrial automation equipment.
