Why Choose the Mersen FR22GR69V40T Protistor® High-Speed Fuse?
The Mersen FR22GR69V40T, also identified by item number B1018625, is a Protistor® high-speed cylindrical semiconductor fuse with striker designed to provide full-range protection for sensitive power semiconductor devices. Engineered in accordance with IEC 60269-1 and IEC 60269-4, it rapidly interrupts overload and short-circuit faults to help protect IGBTs, thyristors, diodes and rectifiers used in demanding industrial power electronic equipment.
As part of the trusted Mersen Protistor® 22 × 58 mm gR range, the FR22GR69V40T combines an ultra-fast current-limiting design with a high breaking capacity and low let-through energy. The integrated mechanical striker provides reliable fuse-operation indication for compatible fuse holders and monitoring systems, helping to minimise maintenance time and improve equipment availability.
With a 40 A rated current, 690 V AC IEC / 700 V AC UL voltage rating and 160 kA breaking capacity, the FR22GR69V40T is ideal for industrial drives, UPS systems, converters, renewable energy equipment and other semiconductor-based power systems.
Key Advantages
- Ultra-fast gR full-range semiconductor protection.
- 40 A rated current for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Integrated mechanical striker for fuse-operation indication.
- 160 kA breaking capacity for dependable fault interruption.
- Compact 22 × 58 mm cylindrical format for standard fuse holders.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- Item number: B1018625.
- Catalogue number: FR22GR69V40T.
- 40 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- gR utilisation category for full-range semiconductor protection.
- 160 kA maximum AC breaking capacity.
- Integrated mechanical striker.
- Silver-plated copper ferrule terminals.
- Ceramic fuse body.
- RoHS compliant.
Reliable Protection for Power Electronics
The Mersen FR22GR69V40T is designed to rapidly clear overloads and short-circuit faults before excessive energy can damage expensive semiconductor devices. Its ultra-fast gR operating characteristic provides comprehensive protection while helping to maximise equipment reliability and minimise downtime.
The integrated striker activates when the fuse operates, allowing compatible fuse holders or monitoring accessories to provide visual or electrical indication. This feature enables quicker fault identification and simplifies maintenance in industrial installations.
Typical Applications
- Variable frequency drives.
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation and control panels.
- Power semiconductor protection.
