Why Choose the Mersen M075704 High-Speed Semiconductor Fuse?
The Mersen M075704 is a high-performance Protistor® high-speed cylindrical fuse-link designed to protect sensitive power semiconductor equipment against overloads and damaging short-circuit currents. Identified by catalogue number FD27GB44V160T, it forms part of Mersen’s 27 × 60 mm gLB range developed for demanding DC power and auxiliary circuit applications.
This fuse-link combines rapid fault interruption with a full-range gLB operating characteristic, allowing it to clear overloads as well as high-level short circuits. Its low let-through energy helps minimise electrical and thermal stress on protected components, while its high interrupting capacity supports dependable protection in critical industrial systems.
With a rated current of 160 A, an IEC voltage rating of 440 V DC and a compact 27 × 60 mm cylindrical format, the Mersen M075704 is suitable for rectifiers, inverters, uninterruptible power supplies and railway auxiliary circuits. Its integrated striker provides clear fuse-operation indication for easier fault identification and maintenance.
Key Advantages
- High-speed fuse-link designed for power semiconductor protection.
- 160 A rated current for high-power DC circuits.
- 440 V DC IEC voltage rating.
- gLB characteristic provides overload and short-circuit protection.
- 100 kA maximum DC interrupting capacity.
- Integrated mechanical striker simplifies fuse-status identification.
Key Features
- Mersen Protistor® semiconductor fuse range.
- FD27GB44V160T catalogue number.
- 160 A rated current.
- 440 V DC rated voltage.
- gLB high-speed semiconductor protection characteristic.
- Compact 27 × 60 mm cylindrical fuse-link design.
- Maximum DC interrupting capacity of 100 kA.
- Integrated mechanical striker indication.
- Clip-mounted installation format.
- RoHS-compliant construction.
Reliable Protection for DC Power Electronics
Power semiconductor devices can be permanently damaged by overloads and short-circuit currents that develop extremely quickly. High-speed fuse-links such as the Mersen M075704 interrupt these faults rapidly, limiting the energy reaching sensitive components such as diodes, thyristors, rectifiers and inverter assemblies.
The Mersen Protistor® 27 × 60 gLB range is engineered to clear all overload conditions while improving circuit safety and supporting selective coordination between distribution fuses. Its compact construction and high interrupting capability make it suitable for demanding industrial and transportation power systems.
Typical Applications
- Industrial rectifiers.
- Power inverters and converters.
- Uninterruptible power supply systems.
- Railway traction auxiliary circuits.
- Reduced-voltage motor starters.
- Power semiconductor protection circuits.
