Why Choose the Mersen FR14GR69V10 Protistor® High-Speed Fuse?
The Mersen FR14GR69V10 is a premium Protistor® high-speed cylindrical semiconductor fuse designed to deliver reliable protection for sensitive power semiconductor devices. Engineered for demanding industrial applications, it provides full-range gR protection against overloads and short circuits, helping maximise equipment uptime while protecting valuable electronic components.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, the FR14GR69V10 features a robust 14 × 51 mm cylindrical design suitable for installation in compatible fuse holders. Its high interrupting capacity and low energy let-through characteristics make it ideal for protecting modern power electronics and industrial automation equipment.
With a 10 A current rating and a 690 V AC IEC rated voltage, this high-speed fuse is commonly used in variable speed drives, UPS systems, power converters and industrial inverter applications where dependable semiconductor protection is essential.
Key Advantages
- High-speed gR semiconductor protection fuse.
- 10 A current rating for industrial power electronics.
- 690 V AC IEC rated voltage.
- Provides full-range protection against overloads and short circuits.
- High breaking capacity for demanding industrial applications.
- Standard 14 × 51 mm cylindrical format for worldwide compatibility.
Key Features
- Mersen Protistor® semiconductor fuse series.
- Catalogue number: FR14GR69V10.
- 10 A rated current.
- 690 V AC IEC rated voltage.
- gR operating class for full-range semiconductor protection.
- 14 × 51 mm cylindrical body.
- Extremely high interrupting rating.
- Designed to IEC 60269-1 and IEC 60269-4.
Reliable Semiconductor Protection
High-speed semiconductor fuses are specifically developed to protect sensitive electronic components such as IGBTs, thyristors, SCRs, diodes and rectifiers from damaging fault currents. Their rapid operating characteristics interrupt faults before semiconductor devices reach destructive thermal limits, improving equipment reliability and reducing maintenance costs.
The Mersen Protistor® range is trusted worldwide in industrial automation, renewable energy, UPS systems and motor drive applications where dependable semiconductor protection is critical for safe and efficient operation.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Power converters.
- Semiconductor protection circuits.
- Industrial automation equipment.