Why Choose the Mersen F081655 Protistor® High-Speed Fuse?
The Mersen F081655, also identified by catalogue number FD20GD150V10, is a high-speed cylindrical fuse developed specifically for protecting sensitive semiconductor devices and auxiliary DC circuits. Part of the Mersen Protistor® 20 × 127 mm gR series, it provides rapid, full-range overcurrent protection in demanding high-voltage electrical systems.
This fuse combines an extremely fast operating characteristic with low let-through energy, helping limit the thermal and electrical stress placed on valuable power electronic components. Its gRD operating characteristic makes it suitable for protecting control circuits, measuring equipment, monitoring devices and other critical DC auxiliaries against overload and short-circuit currents.
With a rated current of 10 A, an IEC voltage rating of 1500 V DC and a 30 kA DC breaking capacity, the F081655 is suitable for high-voltage industrial, transportation and energy applications. Its compact cylindrical format enables straightforward installation in compatible 20 × 127 mm fuse holders.
Key Advantages
- High-speed semiconductor protection fuse for DC applications.
- 1500 V DC voltage rating for demanding high-voltage systems.
- 10 A rated current for auxiliary and control circuits.
- Fast, full-range gRD operating characteristic.
- Low I²t performance helps minimise damage to semiconductor components.
- Excellent current-limiting and cycling capability.
Key Features
- Mersen Protistor® high-speed fuse series.
- 10 A rated current.
- 1500 V DC IEC rated voltage.
- 30 kA DC breaking capacity.
- gR full-range semiconductor protection class.
- gRD fuse characteristic.
- Compact 20 × 127 mm cylindrical construction.
- Designed without an integrated fuse-status indicator.
Reliable Protection for High-Voltage DC Circuits
High-speed fuses such as the Mersen F081655 are designed to interrupt damaging fault currents before excessive energy reaches vulnerable semiconductor devices. The fuse's low I²t performance helps reduce the risk of damage to power electronic components that can respond more quickly to faults than conventional industrial protection devices.
The F081655 is specially developed for DC applications and provides full-range protection for auxiliary circuits, control equipment and measuring or monitoring devices. Its current-limiting performance and dependable cycling capability support reliable operation in industrial power conversion and high-voltage DC systems.
Typical Applications
- Industrial DC control circuits.
- Auxiliary power systems.
- Measuring and monitoring equipment.
- Power converters and rectifiers.
- Battery energy storage equipment.
- Semiconductor and power electronic protection.
