Why Choose the Mersen J097551 Protistor® High Speed Semiconductor Fuse?
The Mersen J097551 is a Protistor® BS88-4 high speed semiconductor fuse engineered to provide rapid short-circuit protection for sensitive power electronic equipment. Designed specifically for semiconductor applications, it protects devices such as IGBTs, thyristors, diodes and rectifiers by limiting fault current and reducing damaging let-through energy.
Manufactured in a compact 17 × 27 mm British Standard fuse-link, the J097551 features an integrated striker indicator for remote fuse operation signalling. It is part of the trusted Mersen Protistor® range, offering extremely high breaking capacity and excellent current-limiting performance for demanding industrial applications.
With a 50 A current rating and a 250 V AC / 250 V DC rating, the Mersen J097551 is ideally suited for industrial drives, power supplies, UPS systems, converters and other semiconductor-based equipment requiring dependable circuit protection.
Key Advantages
- High speed Protistor® semiconductor protection fuse.
- 50 A current rating for semiconductor applications.
- 250 V AC / 250 V DC rated voltage.
- Extremely high breaking capacity.
- Integrated striker for remote indication of fuse operation.
- Compact BS88-4 17 × 27 mm construction.
Key Features
- Mersen Protistor® BS88-4 series.
- Manufacturer part number J097551.
- Catalogue number BS17US25V50P.
- 50 A rated current.
- 250 V AC IEC / UL and 250 V DC UL rating.
- 17 × 27 mm British Standard fuse-link.
- Integrated striker indicator.
- Designed for semiconductor protection.
Reliable Protection for Industrial Power Electronics
Power semiconductor devices can fail within milliseconds during fault conditions. High speed semiconductor fuses are designed to interrupt excessive fault currents before expensive components are damaged, helping reduce repair costs and minimise equipment downtime.
The Mersen Protistor® range combines low let-through energy, high interrupting capacity and excellent current-limiting performance, making it a trusted choice for protecting industrial power electronic equipment.
Typical Applications
- Variable frequency drives.
- Industrial power supplies.
- UPS systems.
- Power converters.
- Industrial rectifiers.
- Semiconductor control equipment.
