Why Choose the Mersen Q094084 Protistor High-Speed Fuse?
The Mersen Q094084, catalogue number FD14GB44V6T, is a compact, high-speed cylindrical semiconductor fuse designed to protect sensitive power electronic components against damaging overcurrents. Part of the Mersen Protistor® 14 × 51 mm gLB series, it is engineered for industrial DC circuits where rapid fault interruption and low let-through energy are essential.
Power semiconductors such as diodes, thyristors and transistors can be damaged extremely quickly during electrical faults. The Q094084 provides fast-acting protection that helps limit the thermal and mechanical stress placed on these components, reducing the risk of extensive damage to converters, rectifiers, drives and associated equipment.
With a rated current of 6 A and a rated voltage of 440 V DC, this Protistor fuse is suitable for lower-current semiconductor protection applications. Its standard 14 × 51 mm cylindrical format, silver-plated copper ferrules and clip-mounting design simplify integration into compatible fuse holders, while the integrated striker supports fuse status indication.
Key Advantages
- High-speed semiconductor fuse for sensitive power electronic equipment.
- 6 A rated current for lower-current protection circuits.
- 440 V DC voltage rating for industrial DC applications.
- Fast operation helps minimise damaging let-through energy.
- Integrated striker indication system supports fuse monitoring.
- Compact 14 × 51 mm cylindrical design.
- Low power dissipation supports efficient equipment operation.
- Robust ceramic construction provides thermal and mechanical durability.
Key Features
- Mersen Protistor® high-speed fuse series.
- Manufacturer item number Q094084.
- Catalogue number FD14GB44V6T.
- 6 A rated current.
- 440 V DC IEC rated voltage.
- gLB speed and utilisation characteristic.
- Integrated striker for fuse operation indication.
- 14 × 51 mm cylindrical fuse format.
- Silver-plated copper ferrule terminals.
- Clip-mounting configuration.
- RoHS-compliant construction.
Reliable Protection for Power Semiconductor Circuits
High-speed fuses are designed to interrupt fault currents more rapidly than general-purpose industrial fuses. This rapid response helps limit the amount of electrical energy passing through semiconductor devices during a fault, reducing the likelihood of catastrophic component failure.
The Mersen Q094084 combines a fast gLB characteristic with compact dimensions and an integrated striker. It can be installed in compatible fuse holders used within power converters, DC drives, rectifier assemblies and other industrial control equipment requiring dependable semiconductor protection.
Typical Applications
- Industrial power converters.
- Semiconductor rectifier assemblies.
- DC motor drives and control equipment.
- Power supply protection circuits.
- Inverters and frequency conversion equipment.
- Industrial automation panels.
- Battery-powered industrial systems.
- Equipment using diodes, thyristors or power transistors.
