Why Choose the Mersen FR22AR69V40 Protistor® High-Speed Fuse?
The Mersen FR22AR69V40 is a high-performance Protistor® high-speed cylindrical semiconductor fuse designed to provide short-circuit protection for sensitive power semiconductor devices used in industrial power electronics. Manufactured in accordance with IEC 60269-4, this ultra-fast aR characteristic fuse delivers rapid fault interruption to minimise damage to IGBTs, thyristors, diodes and other semiconductor components.
Part of the trusted Mersen Protistor® 22 × 58 mm aR fuse range, the FR22AR69V40 combines a compact cylindrical design with an exceptionally high breaking capacity, making it ideal for protecting variable speed drives, UPS systems, power converters and other industrial electronic equipment. Its robust construction helps improve system reliability while reducing costly downtime.
With a 40 A current rating, 690 V AC IEC / 700 V AC UL voltage rating and an aR operating characteristic, the FR22AR69V40 is specifically engineered for short-circuit protection of power semiconductors in demanding industrial applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 40 A current rating for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Extremely high interrupting capacity for demanding industrial applications.
- Low I²t helps minimise damage to semiconductor devices.
- Compact 22 × 58 mm cylindrical design for standard fuse holders.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- Catalogue number: FR22AR69V40.
- 40 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR utilisation category for semiconductor short-circuit protection.
- 22 × 58 mm cylindrical fuse size.
- Complies with IEC 60269-4.
- Current-limiting high-speed design.
- RoHS and REACH compliant.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are specifically engineered to clear fault currents before excessive energy reaches sensitive electronic components. Their low let-through energy and rapid operation help maximise equipment uptime while reducing the likelihood of costly semiconductor failures.
The Mersen Protistor® aR range is widely specified for industrial automation, motor control, renewable energy systems and UPS equipment where dependable short-circuit protection is essential for modern power electronic systems.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters and converters.
- UPS systems.
- Motor drives and soft starters.
- Renewable energy power converters.
- Industrial automation and control panels.
