Why Choose the Mersen FR14GR69V16 Protistor® Semiconductor Fuse?
The Mersen FR14GR69V16, also identified by item number E1017202, is a high-speed Protistor® cylindrical semiconductor fuse designed to protect sensitive power semiconductor devices against overload and short-circuit faults. As part of the Mersen Protistor® 14 × 51 mm gR series, it provides dependable protection for industrial power electronics operating at up to 690 V AC.
With a 16 A current rating and a 690 V AC IEC / 700 V AC UL rating, the FR14GR69V16 is suitable for protecting IGBTs, thyristors, diodes and rectifier modules used in variable speed drives, UPS systems, industrial inverters and power conversion equipment. Its gR full-range operating characteristic offers protection against both overload and short-circuit conditions.
Manufactured with a durable ceramic body and silver-plated copper ferrules, this 14 × 51 mm cylindrical fuse delivers a high breaking capacity while minimising let-through energy, helping extend the service life of valuable semiconductor equipment.
Key Advantages
- High-speed semiconductor protection fuse.
- 16 A rated current for industrial power electronics.
- 690 V AC IEC / 700 V AC UL rating.
- gR full-range operating characteristic.
- 160 kA breaking capacity for dependable fault interruption.
- Low let-through energy helps protect semiconductor devices.
- Compact 14 × 51 mm cylindrical format.
- Suitable for industrial automation and power conversion equipment.
Key Features
- Mersen Protistor® 14 × 51 mm gR series.
- 16 A rated current.
- 690 V AC IEC / 700 V AC UL.
- gR full-range semiconductor protection.
- 160 kA AC breaking capacity.
- 125 A²s clearing I²t.
- Cylindrical ceramic construction.
- Silver-plated copper ferrule terminals.
- Designed for compatible fuse clips and holders.
- IEC 60269-1, IEC 60269-4 and UL 248-13 compliant.
Reliable Protection for Industrial Power Electronics
The Mersen FR14GR69V16 is engineered to interrupt fault currents rapidly before excessive thermal energy can damage expensive semiconductor components. Its low I²t characteristics help minimise stress on IGBTs, thyristors, rectifiers and other power semiconductor devices, improving system reliability and reducing maintenance costs.
The Protistor® range is widely specified by OEMs, panel builders and industrial engineers for protecting power electronic equipment used throughout manufacturing, automation and renewable energy systems.
Typical Applications
- Variable frequency drives.
- Industrial motor drives.
- UPS systems.
- Industrial inverters.
- Power converters and rectifiers.
- Semiconductor protection circuits.
- Automation equipment.
- Industrial power electronic assemblies.
