Why Choose the Mersen FR22GR69V16T High-Speed Semiconductor Fuse?
The Mersen FR22GR69V16T is a Protistor® high-speed cylindrical semiconductor fuse designed to protect sensitive power semiconductor devices used in industrial power conversion and automation equipment. Part of Mersen’s 22 × 58 mm gR fuse range, it provides rapid current limitation to help safeguard IGBTs, thyristors, diodes, rectifiers and similar electronic components.
With a rated current of 16 A and a rated voltage of 690 V AC, the FR22GR69V16T is suitable for demanding circuits where conventional general-purpose fuses may not operate quickly enough to prevent semiconductor damage. Its gR utilisation category provides full-range protection against applicable overload and short-circuit currents.
The compact 22 × 58 mm cylindrical cartridge is designed for installation in a compatible fuse holder. The T-version incorporates a striker indicator, allowing an operated fuse to be identified quickly or linked to compatible auxiliary signalling equipment for remote monitoring.
Key Advantages
- High-speed gR semiconductor protection.
- 16 A rated current for industrial power electronic circuits.
- 690 V AC rated voltage.
- Integrated striker supports local or remote fuse-status indication.
- Rapid current limitation helps minimise semiconductor damage.
- Compact 22 × 58 mm cylindrical format.
Key Features
- Mersen Protistor® high-speed fuse.
- gR utilisation category.
- 16 A rated current.
- 690 V AC IEC rating.
- 22 × 58 mm cylindrical body.
- Integrated striker or trip indicator.
- Low let-through energy for semiconductor protection.
- Suitable for compatible industrial cylindrical fuse holders.
Fast and Reliable Semiconductor Protection
Power semiconductor devices can be damaged by excessive current in a fraction of a second. The Mersen FR22GR69V16T is engineered to interrupt faults rapidly while restricting the thermal and electrical energy passed into the protected circuit.
This high-speed response helps reduce stress on valuable components and can minimise repair costs, equipment damage and unplanned production downtime. The striker provides a clear indication after operation, helping maintenance personnel identify the affected circuit more efficiently.
Typical Applications
- Variable frequency drives and motor controllers.
- Industrial inverters and frequency converters.
- Power converters and rectifier assemblies.
- Uninterruptible power supply systems.
- Servo drives and robotics equipment.
- Industrial automation and control panels.
- Battery chargers and regulated power supplies.
