Why Choose the Mersen FR14GR69V1 High-Speed Semiconductor Fuse?
The Mersen FR14GR69V1 is a high-performance Protistor® high-speed cylindrical semiconductor fuse designed to provide full-range protection for sensitive power semiconductor devices used in industrial power electronic equipment. As part of the trusted Mersen Protistor® 14 × 51 mm gR series, this fuse is engineered to protect IGBTs, SCRs, diodes and other semiconductor components from damaging overloads and short circuits.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, the FR14GR69V1 offers outstanding current-limiting performance and a high breaking capacity, helping minimise equipment damage and reduce downtime. Its compact cylindrical construction allows straightforward installation into compatible fuse holders used throughout industrial automation and power conversion systems.
With a 1 A current rating, 690 V AC IEC / 700 V AC UL voltage rating and 14 × 51 mm cylindrical body, the FR14GR69V1 is ideal for low-current semiconductor protection in drives, UPS systems, converters and industrial control equipment. This version is supplied without an integrated striker indicator.
Key Advantages
- High-speed gR semiconductor protection fuse.
- 1 A current rating for sensitive electronic circuits.
- 690 V AC IEC / 700 V AC UL rated.
- Excellent current-limiting characteristics minimise semiconductor damage.
- Compact 14 × 51 mm cylindrical design.
- Suitable for industrial drives, converters and UPS systems.
Key Features
- Mersen Protistor® semiconductor fuse series.
- 14 × 51 mm cylindrical fuse.
- 1 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- gR utilisation category for full-range semiconductor protection.
- Without integrated striker indicator.
- Rated breaking capacity of 160 kA.
- RoHS compliant.
Reliable Protection for Industrial Power Electronics
The FR14GR69V1 rapidly interrupts fault currents before they can damage valuable semiconductor components. Its low let-through energy and high interrupting capacity improve equipment reliability while reducing maintenance costs and production downtime.
Designed specifically for semiconductor protection, this fuse is commonly used in applications where conventional industrial fuses cannot provide the rapid operating characteristics required to safeguard sensitive electronic devices.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- Power converters and rectifiers.
- UPS systems.
- Servo drives.
- Industrial automation equipment.
