Why Choose the Mersen FR22GR69V63 Protistor® High-Speed Fuse?
The Mersen FR22GR69V63 (Item No. D1018558) is a premium Protistor® high-speed cylindrical semiconductor fuse designed to provide full-range (gR) protection for sensitive semiconductor devices. Specifically engineered for power electronic applications, it safeguards IGBTs, thyristors, SCRs, diodes and rectifiers against both overloads and short-circuit faults, making it ideal for industrial drives, UPS systems and power conversion equipment.
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. This version is supplied without a striker indicator, making it suitable where remote or visual fuse indication is not required.
Rated at 63 A with a 690 V AC IEC (700 V AC UL) voltage rating, the FR22GR69V63 delivers dependable protection for demanding industrial power electronic systems requiring fast fault interruption and high reliability.
Key Advantages
- Full-range gR semiconductor protection.
- 63 A current rating.
- 690 V AC IEC / 700 V AC UL rated voltage.
- Fast fault interruption protects expensive semiconductor devices.
- Low I²t reduces thermal stress and extends equipment life.
- High 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.
- No blown-fuse indicator.
- Current-limiting ceramic construction.
- High interrupting capacity.
- RoHS compliant.
Reliable Protection for Semiconductor Equipment
The FR22GR69V63 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.
