Why Choose the Mersen FR14AR69V16 Protistor® Semiconductor Fuse?
The Mersen FR14AR69V16 is a high speed aR semiconductor fuse engineered to provide rapid short-circuit protection for sensitive power electronic components. Part of the established Mersen Protistor® 14×51 aR series, this fuse helps protect power semiconductors such as IGBTs, thyristors, diodes and rectifiers used in demanding industrial systems.
Designed for applications requiring extremely fast fault interruption, the FR14AR69V16 offers effective current limitation and low energy let-through characteristics. These properties help reduce thermal and mechanical stress on valuable semiconductor devices, limiting equipment damage and supporting improved system reliability.
With a rated current of 16 A, a 690 V AC IEC rating and a high breaking capacity of 160 kA, the FR14AR69V16 is suitable for industrial drives, inverters, power converters, UPS equipment and other semiconductor-based systems. Its compact 14×51 mm cylindrical format allows straightforward installation in compatible fuse holders and clips.
Key Advantages
- High speed aR fuse designed for semiconductor protection.
- 16 A rated current for industrial power electronic circuits.
- 690 V AC IEC voltage rating for demanding applications.
- 160 kA breaking capacity for reliable fault interruption.
- Low I²t performance helps minimise stress on protected components.
- Compact 14×51 mm cylindrical construction for convenient installation.
Key Features
- Mersen Protistor® high speed fuse series.
- 16 A rated current.
- 690 V AC IEC rated voltage.
- aR operating class for semiconductor short-circuit protection.
- 160 kA maximum AC breaking capacity.
- 14×51 mm ceramic cylindrical body.
- Silver-plated copper ferrule terminals.
- Clip mounting for compatible fuse holders.
Reliable Protection for Power Electronics
The Mersen FR14AR69V16 is designed to interrupt dangerous short-circuit currents before excessive energy reaches sensitive semiconductor components. Its fast operating characteristic and low I²t values help limit the heat generated during a fault, reducing the risk of damage to expensive power electronic equipment.
As an aR-class fuse, the FR14AR69V16 provides partial-range protection focused on high fault currents. It should therefore be coordinated with appropriate overload protection where required by the equipment design and electrical installation.
Typical Applications
- Variable frequency drives and motor control systems.
- Industrial inverters and power converters.
- Uninterruptible power supply equipment.
- Rectifier and thyristor circuits.
- Industrial automation machinery.
- Renewable energy and energy conversion systems.
