Why Choose the Mersen FR14GR69V6 Protistor® High-Speed Fuse?
The Mersen FR14GR69V6 is a high-performance Protistor® high-speed cylindrical fuse engineered to provide reliable protection for power semiconductors in demanding industrial applications. Designed in accordance with IEC 60269-1 and IEC 60269-4, this ultra-fast fuse delivers exceptional fault protection for sensitive electronic equipment including variable speed drives, UPS systems, soft starters and power converters.
As part of Mersen's renowned Protistor® 14×51 gR fuse range, the FR14GR69V6 combines a compact cylindrical design with a high breaking capacity, ensuring rapid fault clearance while minimising damage to expensive semiconductor devices. Its dependable performance helps improve equipment reliability and reduce maintenance costs across industrial power systems.
With a 6 A current rating, 690 V AC IEC / 700 V AC UL voltage rating and gR operating characteristic, the FR14GR69V6 is specifically developed for complete protection of power semiconductor devices where extremely fast interruption is essential.
Key Advantages
- Ultra-fast gR semiconductor protection fuse.
- 6 A current rating for sensitive power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Designed specifically for protecting power semiconductors.
- High interrupting capacity for demanding industrial applications.
- Compact 14 × 51 mm cylindrical format for easy installation.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- Catalogue number: FR14GR69V6.
- 6 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- gR operating characteristic for full-range semiconductor protection.
- 14 × 51 mm cylindrical fuse size.
- Complies with IEC 60269-1 and IEC 60269-4.
- Suitable for AC applications.
- RoHS and REACH compliant.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically designed to protect sensitive power electronic components from short circuits and excessive fault currents. Their ultra-fast operating characteristics help minimise energy let-through, reducing the risk of costly damage to semiconductors such as IGBTs, SCRs, thyristors and diodes.
The Mersen Protistor® range is trusted worldwide in industrial automation, renewable energy, UPS systems and motor control applications where reliable semiconductor protection is essential for maximising equipment uptime and operational safety.
Typical Applications
- Variable speed drives (VSDs).
- Power converters and inverters.
- Uninterruptible power supplies (UPS).
- Motor drives and soft starters.
- Industrial power supplies.
- Semiconductor protection within electrical control panels.
