Why Choose the Mersen FR22GR69V63T Protistor® High-Speed Fuse?
The Mersen FR22GR69V63T (Item No. D1018627) is a premium Protistor® high-speed cylindrical semiconductor fuse designed to provide full-range (gR) protection for sensitive power semiconductor devices. Engineered specifically for power electronic applications, it protects IGBTs, thyristors, SCRs, diodes and rectifiers against both overloads and short-circuit faults. The integrated mechanical striker indicator enables rapid identification of an operated fuse and can be used with compatible monitoring accessories for improved maintenance efficiency.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, this 22 × 58 mm cylindrical fuse combines exceptional current-limiting performance with low I²t characteristics to minimise thermal stress on valuable semiconductor components. Its high interrupting capacity and fast operating characteristics help maximise equipment reliability while reducing costly downtime.
Rated at 63 A with a 690 V AC IEC (700 V AC UL) voltage rating, the FR22GR69V63T is ideally suited for industrial drives, UPS systems, power converters, renewable energy equipment and other demanding semiconductor protection applications.
Key Advantages
- Full-range gR semiconductor protection.
- 63 A current rating.
- 690 V AC IEC / 700 V AC UL rated voltage.
- Integrated mechanical striker indicator.
- Low I²t reduces thermal stress on semiconductor devices.
- 200 kA breaking capacity for demanding industrial applications.
Key Features
- Mersen Protistor® Size 22 × 58 mm.
- 63 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- gR operating class providing full-range semiconductor protection.
- Integrated mechanical striker indicator.
- Current-limiting ceramic construction.
- High interrupting capacity.
- RoHS compliant.
Reliable Protection for Semiconductor Equipment
The FR22GR69V63T rapidly interrupts fault currents before excessive thermal energy reaches sensitive semiconductor devices. Its low let-through energy helps maximise equipment life while reducing maintenance costs and improving system reliability.
Protistor® semiconductor fuses are trusted worldwide for protecting variable frequency drives, UPS systems, industrial inverters, renewable energy installations and other critical power electronic equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Power converters.
- Renewable energy equipment.
- Industrial automation and control panels.
