Why Choose the Mersen N076303 High-Speed Semiconductor Fuse?
The Mersen N076303 is a high-performance Protistor® high-speed cylindrical fuse-link designed to protect sensitive semiconductor components against damaging short-circuit currents. Identified by catalogue number FD27GB66V16T, it belongs to Mersen’s 27 × 60 mm gR (gRB) range developed for demanding DC power and auxiliary circuit applications.
This semiconductor fuse-link delivers rapid fault interruption with low let-through energy, helping to minimise electrical and thermal damage to protected components. Its low I²t characteristics, reduced power losses and extended operating life make it suitable for modern DC equipment requiring faster protection than conventional industrial fuse-links can provide.
With a rated current of 16 A, an IEC voltage rating of 660 V DC and a compact 27 × 60 mm cylindrical format, the Mersen N076303 provides dependable protection for railway equipment, power converters and industrial DC systems. Its integrated striker provides a clear indication when the fuse-link has operated.
Key Advantages
- High-speed fuse-link designed for semiconductor protection.
- 16 A rated current for precise DC circuit protection.
- 660 V DC IEC voltage rating.
- Low I²t performance helps minimise damage to protected components.
- Reduced watt losses support efficient operation and extended service life.
- Integrated mechanical striker simplifies fuse-status identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD27GB66V16T catalogue number.
- 16 A rated current.
- 660 V DC rated voltage.
- gR operating class with gRB design characteristics.
- Compact 27 × 60 mm cylindrical fuse-link format.
- Integrated mechanical striker indication.
- Low let-through energy during short-circuit conditions.
- Suitable for operation at elevated temperatures.
- Designed for railway power and auxiliary circuits.
Reliable Protection for Modern DC Equipment
Power semiconductor components can be permanently damaged by fault currents that develop within a fraction of a second. High-speed fuse-links such as the Mersen N076303 interrupt these currents rapidly, limiting the energy reaching sensitive diodes, thyristors, rectifiers and power conversion assemblies.
The Mersen Protistor® DC range is developed to meet the performance requirements of modern DC equipment. Its low I²t characteristics, reduced watt losses and suitability for elevated operating temperatures support dependable protection in railway, industrial conversion and auxiliary power systems.
Typical Applications
- Railway power circuits.
- Railway auxiliary electrical systems.
- Industrial DC power supplies.
- Power converters and rectifiers.
- Semiconductor protection circuits.
- Battery charging and energy systems.
