Why Choose the Mersen E089497 Protistor® High-Speed Fuse?
The Mersen E089497 (Catalogue No. FD20GB100V25T) is a high-speed cylindrical semiconductor protection fuse developed for demanding DC power applications. Part of the renowned Mersen Protistor® 20 × 127 mm gR series, it provides rapid fault interruption to protect sensitive semiconductor devices used in photovoltaic systems, battery energy storage, industrial converters and DC control circuits.
Designed specifically for semiconductor protection, the E089497 features a gR operating class and an integrated striker indicator, allowing quick identification of an operated fuse. Its extremely fast-acting performance helps minimise damage to costly power electronic equipment while improving system reliability.
With a 25 A current rating, 1000 V DC rating and an impressive 100 kA DC breaking capacity, the E089497 is ideally suited to modern renewable energy installations and industrial DC power conversion systems requiring dependable overcurrent protection.
Key Advantages
- High-speed semiconductor protection fuse for demanding DC applications.
- Rated for 1000 V DC industrial and renewable energy systems.
- Fast-acting gR characteristic protects sensitive semiconductor devices.
- Integrated striker indication simplifies maintenance.
- High 100 kA DC breaking capacity.
- Compact 20 × 127 mm cylindrical construction.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- Model: E089497 / FD20GB100V25T.
- 25 A rated current.
- 1000 V DC IEC rated voltage.
- gR full-range semiconductor protection.
- 100 kA DC breaking capacity.
- Integrated striker indication system.
- 20 × 127 mm cylindrical body for clip mounting.
Reliable Protection for Critical Power Electronics
The Mersen Protistor® range has been developed specifically for protecting semiconductor devices from damaging fault currents. The E089497 rapidly disconnects fault conditions, reducing stress on expensive electronic components and helping maximise equipment availability.
Its high interrupting capacity and integrated striker indication make it an excellent choice for photovoltaic systems, battery storage installations, industrial converters, inverters and other high-voltage DC applications where dependable circuit protection is essential.
Typical Applications
- Solar photovoltaic systems.
- Battery energy storage systems (BESS).
- Industrial DC converters and rectifiers.
- Power electronic equipment.
- Control and monitoring circuits.
- Semiconductor protection in industrial automation.
