Why Choose the Mersen FR14GR69V2T Protistor® High-Speed Fuse?
The Mersen FR14GR69V2T (Item No. D1017178) is a premium Protistor® high-speed cylindrical semiconductor fuse designed to provide full-range (gR) protection for sensitive semiconductor devices. Engineered specifically for power electronic applications, it protects inverters, UPS systems, variable frequency drives and other semiconductor equipment against both overloads and short-circuit faults. The integrated striker indicator enables rapid identification of an operated fuse for faster maintenance and optional remote indication.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, this 14 × 51 mm cylindrical fuse offers outstanding current-limiting performance and a very high interrupting capacity. Its low I²t characteristics minimise thermal stress on valuable semiconductor devices including IGBTs, SCRs, thyristors, diodes and rectifiers.
Rated at 2 A and 690 V AC IEC (700 V AC UL), the FR14GR69V2T is ideally suited to industrial automation, renewable energy systems, motor drives and power conversion equipment where dependable semiconductor protection is essential.
Key Advantages
- Full-range gR semiconductor protection.
- 2 A current rating.
- 690 V AC IEC / 700 V AC UL rated voltage.
- Integrated striker indication for fast maintenance.
- Low I²t minimises thermal stress on semiconductor devices.
- 160 kA breaking capacity for demanding industrial applications.
Key Features
- Mersen Protistor® Size 14 × 51 mm.
- 2 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.
- Ceramic body with silver-plated contacts.
- Current-limiting design.
- RoHS compliant.
Reliable Protection for Semiconductor Equipment
The FR14GR69V2T rapidly interrupts fault currents before damaging thermal energy reaches sensitive semiconductor devices. Its fast operating characteristics improve equipment reliability while reducing maintenance costs and production downtime.
Protistor® semiconductor fuses are trusted worldwide for protecting industrial drives, UPS systems, renewable energy equipment, converters and other critical power electronic applications.
Typical Applications
- Variable frequency drives (VFDs).
- UPS systems.
- Industrial inverters.
- Power converters.
- Servo drives.
- Industrial automation equipment.
