Why Choose the Mersen P076304 High-Speed Semiconductor Fuse?
The Mersen P076304 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 FD27GB66V32T, it forms part of Mersen’s 27 × 60 mm gR (gRB) range developed for demanding DC power and railway auxiliary applications.
This fuse-link provides extremely fast and current-limiting fault interruption, helping to reduce the electrical and thermal energy reaching protected components. Its low I²t characteristics and reduced power losses help minimise semiconductor damage while supporting dependable performance and a long operating life.
With a rated current of 32 A, an IEC voltage rating of 660 V DC and a compact 27 × 60 mm cylindrical format, the Mersen P076304 is suitable for railway power equipment, converters, rectifiers and industrial DC circuits. Its integrated striker provides clear fuse-operation indication for quicker fault identification and maintenance.
Key Advantages
- High-speed fuse-link designed for semiconductor protection.
- 32 A rated current for demanding DC power circuits.
- 660 V DC IEC voltage rating.
- Low I²t performance helps minimise damage to protected components.
- Extremely current-limiting operation supports rapid fault clearance.
- Integrated mechanical striker simplifies fuse-status identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD27GB66V32T catalogue number.
- 32 A rated current.
- 660 V DC rated voltage.
- gR operating class with gRB design characteristics.
- Compact 27 × 60 mm cylindrical fuse-link format.
- Extremely fast-acting and current-limiting performance.
- Integrated mechanical striker indication.
- Designed for elevated operating temperatures.
- RoHS-compliant construction.
Reliable Protection for Modern DC Equipment
Power semiconductor devices can be permanently damaged by short-circuit currents that develop within milliseconds. High-speed fuse-links such as the Mersen P076304 interrupt these faults rapidly, limiting the energy reaching sensitive components such as diodes, thyristors, rectifiers and power conversion assemblies.
The Mersen Protistor® DC range is developed to meet the improved protection requirements of modern electrical equipment. Its low I²t characteristics, reduced watt losses, strong cycling capability and suitability for elevated operating temperatures support reliable performance in demanding railway and industrial DC 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.
