Why Choose the Mersen FR14GR69V6T Protistor® Semiconductor Fuse?
The Mersen FR14GR69V6T, item number F1017180, is a high-speed Protistor® cylindrical semiconductor fuse engineered to provide full-range protection for sensitive power semiconductor devices. Part of Mersen's 14 × 51 mm gR series, it is designed for industrial power electronic applications operating at up to 690 V AC (IEC) and 700 V AC (UL).
With a 6 A current rating, gR operating characteristic and an integrated striker indicator, the FR14GR69V6T provides dependable protection for IGBTs, thyristors, diodes, rectifiers and other semiconductor devices used in variable speed drives, UPS systems, inverters and industrial power supplies.
Its ceramic cylindrical body, silver-plated copper ferrules and high interrupting capacity minimise let-through energy during fault conditions, helping to protect expensive semiconductor components while improving equipment reliability and reducing downtime.
Key Advantages
- High-speed semiconductor protection fuse.
- 6 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- gR full-range operating characteristic.
- Integrated striker indicator.
- 160 kA AC breaking capacity.
- Low let-through energy for enhanced semiconductor protection.
- Compact 14 × 51 mm cylindrical format.
Key Features
- Mersen Protistor® 14 × 51 mm gR series.
- Catalogue number: FR14GR69V6T.
- Item number: F1017180.
- 6 A current rating.
- 690 V AC IEC / 700 V AC UL.
- gR full-range semiconductor protection.
- Integrated striker indicator.
- Ceramic body with silver-plated ferrules.
- Ferrule terminals for clip mounting.
- RoHS compliant.
Reliable Protection for Industrial Power Electronics
The Mersen FR14GR69V6T is engineered to interrupt fault currents extremely rapidly, limiting thermal and mechanical stress on semiconductor devices. Its current-limiting performance helps maximise equipment reliability while reducing maintenance costs in demanding industrial applications.
The integrated striker provides rapid fuse-operation indication and can be used with compatible signalling accessories for simplified maintenance and remote monitoring of electrical systems.
Typical Applications
- Variable frequency drives.
- Industrial motor drives.
- UPS systems.
- Industrial inverters.
- Power converters.
- Rectifiers.
- Semiconductor protection circuits.
- Industrial automation equipment.
