Why Choose the Mersen N080420 High-Speed Semiconductor Fuse?
The Mersen N080420 is a high-performance Protistor® high-speed cylindrical fuse-link designed to protect sensitive power semiconductor components in demanding high-voltage DC systems. Identified by catalogue number FD36GC150V50T, it forms part of Mersen’s 36 × 190 mm gR range developed specifically for modern railway power and auxiliary circuits.
This fuse-link provides rapid short-circuit interruption with low let-through energy, helping to minimise electrical and thermal damage to protected components. Its lower I²t characteristics, reduced power losses and extended operating life support dependable protection in applications where conventional industrial fuse-links may not respond quickly enough.
With a rated current of 50 A, an IEC voltage rating of 1500 V DC and a robust 36 × 190 mm cylindrical format, the Mersen N080420 is suitable for railway traction systems, high-voltage power converters and industrial DC equipment. Its integrated striker provides clear fuse-operation indication for easier fault identification and maintenance.
Key Advantages
- High-speed fuse-link designed for semiconductor protection.
- 50 A rated current for high-voltage DC power circuits.
- 1500 V DC IEC voltage rating.
- Low I²t performance helps minimise damage to protected components.
- 60 kA DC breaking capacity supports dependable fault interruption.
- Integrated mechanical striker simplifies fuse-status identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD36GC150V50T catalogue number.
- 50 A rated current.
- 1500 V DC rated voltage.
- gR high-speed semiconductor protection characteristic.
- gRC cylindrical design configuration.
- Robust 36 × 190 mm fuse-link format.
- Maximum rated DC breaking capacity of 60 kA.
- Integrated mechanical striker indication.
- RoHS-compliant construction.
Reliable Protection for High-Voltage 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 N080420 interrupt these faults rapidly, limiting the electrical energy reaching sensitive diodes, thyristors, rectifiers and power conversion assemblies.
The Mersen Protistor® DC range is developed to meet the improved protection requirements of modern high-voltage DC equipment. Its low I²t characteristics, reduced watt losses and suitability for elevated operating temperatures support reliable performance in railway, industrial conversion and auxiliary power systems.
Typical Applications
- Railway traction power systems.
- Railway auxiliary electrical circuits.
- High-voltage DC power converters.
- Industrial rectifiers and inverters.
- Semiconductor protection circuits.
- Battery energy storage and charging equipment.
