Why Choose the Mersen F083656 Protistor® High-Speed Fuse?
The Mersen F083656, also identified by catalogue number FD20GC100V63T, is a high-speed cylindrical fuse designed specifically for the protection of semiconductor devices and critical DC auxiliary circuits. Part of the Mersen Protistor® 20 × 127 mm gR range, it provides fast, full-range overcurrent protection for demanding industrial power systems.
This fuse features a gRC characteristic with extremely fast current-limiting performance and low let-through energy. These characteristics help reduce thermal and electrical stress on valuable semiconductor components during overload and short-circuit conditions, improving equipment protection and system reliability.
With a rated current of 63 A, an IEC voltage rating of 1000 V DC and a maximum breaking capacity of 100 kA DC, the F083656 is suitable for high-power control, measuring and monitoring circuits. Its integrated striker provides clear fuse-operation indication and can support remote monitoring when installed in compatible equipment.
Key Advantages
- High-speed semiconductor protection fuse for DC electrical systems.
- 63 A current rating for demanding auxiliary and power electronic circuits.
- 1000 V DC voltage rating for high-voltage applications.
- Maximum 100 kA DC breaking capacity.
- Low I²t performance helps minimise damage to semiconductor components.
- Integrated striker indication supports rapid fault identification.
Key Features
- Mersen Protistor® high-speed cylindrical fuse series.
- 63 A rated current.
- 1000 V DC IEC rated voltage.
- 100 kA maximum DC breaking capacity.
- gR full-range semiconductor protection class.
- gRC fuse characteristic.
- Compact 20 × 127 mm cylindrical construction.
- Integrated striker for operated-fuse indication.
Reliable Protection for High-Power DC Circuits
High-speed fuses such as the Mersen F083656 are designed to interrupt damaging fault currents before excessive energy reaches sensitive semiconductor devices. Their extremely fast response and low I²t characteristics provide a higher level of protection than conventional industrial fuse-links in power electronic applications.
The F083656 provides full-range protection against overload and short-circuit currents while maintaining excellent cycling capability. Its 100 kA interrupting capacity makes it suitable for installations where substantial fault currents may occur, including converters, rectifiers and industrial DC systems.
Typical Applications
- Industrial DC auxiliary circuits.
- Control, measuring and monitoring equipment.
- Power converters and rectifiers.
- Variable speed drives and inverters.
- Battery energy storage equipment.
- Semiconductor and power electronic protection.
