Why Choose the Mersen V221439 Semiconductor Fuse?
The Mersen V221439 is an ultra-fast Protistor® semiconductor fuse designed to provide full-range protection for sensitive power electronic equipment. Identified by the commercial designation FR27GB80V16T, it features a gRB (gR) utilisation category, a rated current of 16 A and a rated voltage of 800 V AC, making it ideal for protecting semiconductor devices against overload and short-circuit currents.
The V221439 incorporates an integrated trip indicator (striker), allowing rapid identification of an operated fuse and enabling remote indication when used with compatible accessories. Its 27 × 60 mm cylindrical format makes it suitable for installation in compatible Mersen fuse holders used throughout industrial power conversion systems.
Designed for demanding industrial applications, the V221439 provides low let-through energy and a high interrupting capacity, helping minimise damage to valuable semiconductor devices such as diodes, thyristors, IGBTs and rectifier assemblies.
Key Advantages
- Genuine Mersen Protistor® semiconductor fuse.
- 16 A rated current with 800 V AC rating.
- gRB (gR) full-range semiconductor protection.
- Integrated striker for fuse-operation indication.
- Low I²t helps protect sensitive power electronic equipment.
- High 90 kA breaking capacity at 800 V AC.
- Compact 27 × 60 mm cylindrical format.
- Suitable for industrial power conversion applications.
Key Features
- Mersen V221439 / FR27GB80V16T.
- Protistor® semiconductor fuse.
- 16 A rated current.
- 800 V AC IEC rated voltage.
- gRB (gR) utilisation category.
- Integrated trip indicator (striker).
- 27 × 60 mm cylindrical ceramic body.
- Ultra-fast fault interruption.
- Rated breaking capacity: 90 kA AC.
Designed for Critical Semiconductor Protection
The Mersen V221439 has been engineered for the protection of modern power electronic equipment where extremely fast fault clearance is essential. Its gRB operating characteristics provide full-range protection while limiting the thermal and electrical energy delivered to sensitive semiconductor components during fault conditions.
The integrated striker enables visual or remote indication of fuse operation, helping reduce maintenance time and improving equipment availability in industrial installations.
Typical Applications
- Variable speed drives.
- Industrial power converters.
- Rectifiers and inverters.
- UPS systems.
- Motor control equipment.
- Industrial automation systems.