Why Choose the Mersen FR22GR69V32T Protistor® High-Speed Fuse?
The Mersen FR22GR69V32T is a high-performance Protistor® high-speed cylindrical fuse with striker, designed to protect sensitive power semiconductor devices against overloads and short-circuit currents. Its rapid operating characteristics help limit damaging energy before it reaches components such as IGBTs, thyristors, rectifier diodes and power transistors.
As part of the established Mersen Protistor® 22 × 58 gR fuse range, the FR22GR69V32T combines full-range semiconductor protection with an extremely high interrupting capability. The integrated striker provides a mechanical trip indication that can be used with compatible fuse holders, microswitches or monitoring systems to identify fuse operation and support faster maintenance.
With a rated current of 32 A and a rated voltage of 690 V AC according to IEC standards, this fuse is suitable for demanding power conversion, motor control and industrial automation applications. Its standard 22 × 58 mm cylindrical format allows straightforward installation in compatible fuse holders and electrical control equipment.
Key Advantages
- High-speed gR fuse for full-range semiconductor protection.
- 32 A rated current for industrial power electronic equipment.
- 690 V AC IEC voltage rating for demanding electrical systems.
- Integrated striker trip indicator supports fuse-status monitoring.
- Extremely high interrupting capability for rapid fault clearance.
- Compact 22 × 58 mm cylindrical design for compatible fuse holders.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- 32 A rated current.
- 690 V AC rated voltage according to IEC.
- 700 V AC UL product-range rating.
- gR utilisation category for full-range semiconductor protection.
- Integrated striker for trip indication.
- 22 × 58 mm cylindrical fuse format.
- Extremely high interrupting rating.
- Designed in accordance with IEC 60269-1 and IEC 60269-4.
Reliable Protection for Power Semiconductors
High-speed fuses such as the Mersen FR22GR69V32T interrupt excessive current much faster than conventional industrial fuse links. This reduces the amount of thermal and electrical energy passed through to sensitive semiconductor components during a fault, helping prevent extensive equipment damage and unplanned production downtime.
The gR operating characteristic provides protection across the fuse's full current range, including overload and short-circuit conditions. Combined with its integrated striker, the FR22GR69V32T supports dependable circuit protection and effective fault indication in modern industrial power systems.
Typical Applications
- Variable frequency drives and motor control systems.
- Power converters and industrial rectifiers.
- Inverters and renewable energy equipment.
- Uninterruptible power supply systems.
- Industrial soft starters.
- Semiconductor-controlled heating equipment.
- Automation panels and power electronic assemblies.
