Why Choose the Mersen M075635 High-Speed Semiconductor Fuse?
The Mersen M075635 is a high-performance Protistor® high-speed cylindrical fuse-link designed to protect sensitive semiconductor components in demanding DC electrical systems. Identified by catalogue number FD27GB66V25T, it forms part of Mersen’s 27 × 60 mm gR (gRB) range developed for railway power, auxiliary circuits and modern DC equipment.
This semiconductor fuse-link provides rapid short-circuit interruption with low let-through energy, helping to minimise damage to protected power electronic components. Its reduced I²t and watt-loss characteristics support dependable performance, improved system efficiency and a longer operating life in applications where conventional industrial fuses may not respond quickly enough.
With a rated current of 25 A, an IEC voltage rating of 660 V DC and a compact 27 × 60 mm cylindrical format, the Mersen M075635 is suitable for power converters, railway auxiliary equipment and industrial DC circuits. An integrated striker provides clear fuse-operation indication for easier fault identification and maintenance.
Key Advantages
- High-speed fuse-link designed for semiconductor protection.
- 25 A rated current for industrial DC power circuits.
- 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.
- FD27GB66V25T catalogue number.
- 25 A rated current.
- 660 V DC rated voltage.
- gR (gRB) high-speed semiconductor protection characteristic.
- Compact 27 × 60 mm cylindrical fuse-link design.
- Integrated mechanical striker indication.
- Designed for demanding DC power and auxiliary circuits.
- Suitable for operation at elevated temperatures.
- RoHS-compliant construction.
Reliable Protection for Modern DC Equipment
Power semiconductor devices can be permanently damaged by short-circuit currents that develop in a fraction of a second. High-speed fuse-links such as the Mersen M075635 interrupt these faults rapidly, limiting the electrical energy reaching sensitive components such as diodes, thyristors, rectifiers and power conversion assemblies.
The Mersen Protistor® DC range is developed to meet the protection requirements of modern DC equipment. Its low I²t characteristics, reduced power losses and ability to operate in elevated-temperature environments make it suitable for railway power systems, industrial converters and critical auxiliary circuits.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC power supplies.
- Power converters and rectifiers.
- Semiconductor protection circuits.
- Battery charging and energy systems.
- Industrial automation equipment.
