Why Choose the Mersen FR14AR69V16T Semiconductor Fuse?
The Mersen FR14AR69V16T is a premium ultra-fast semiconductor fuse engineered to provide reliable short-circuit protection for sensitive power electronic devices. Part of the trusted Mersen Protistor® 14 × 51 aR series, this fuse is specifically designed for safeguarding semiconductors used in industrial drives, power conversion equipment and automation systems.
Designed with an aR utilisation category, the FR14AR69V16T delivers partial-range protection for semiconductor devices, providing exceptionally fast fault interruption and low let-through energy. The integrated striker indicator provides a clear mechanical indication when the fuse has operated, helping maintenance engineers identify and replace blown fuses quickly.
With a rated current of 16 A and a 690 V AC IEC / 700 V AC UL voltage rating, the FR14AR69V16T is ideal for protecting inverters, UPS systems, motor drives, rectifiers and other industrial semiconductor equipment. Its compact 14 × 51 mm cylindrical format enables straightforward installation into compatible fuse holders.
Key Advantages
- Ultra-fast semiconductor fuse designed for power electronic protection.
- 16 A rated current for industrial control and power conversion systems.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR partial-range protection for semiconductor devices.
- Integrated striker indicator simplifies maintenance.
- Low let-through energy helps minimise damage to expensive semiconductor components.
Key Features
- Mersen Protistor® semiconductor fuse.
- 16 A rated current.
- 690 V AC IEC / 700 V AC UL rating.
- aR operating class.
- 14 × 51 mm cylindrical ceramic body.
- Ultra-fast fault clearing.
- High interrupting capacity.
- Built-in striker indicator.
Reliable Protection for Industrial Power Electronics
The Mersen FR14AR69V16T is designed to interrupt fault currents before they can damage costly semiconductor devices. Its extremely fast operating characteristics reduce thermal stress and limit fault energy, helping improve equipment reliability and minimise downtime.
As part of the Protistor® semiconductor protection range, this fuse is widely specified for industrial motor drives, UPS systems, inverters and power converters where dependable high-speed protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- UPS systems.
- Power converters and inverters.
- Rectifiers and semiconductor assemblies.
- Industrial automation and control panels.
