Why Choose the Mersen N097256 High-Speed Semiconductor Fuse?
The Mersen N097256 is a compact and highly reliable high-speed semiconductor fuse designed to provide rapid short-circuit protection for sensitive power electronic equipment. Part of the established Mersen Protistor URGL fuse range, it is engineered for industrial applications where effective current limitation and fast fault interruption are essential.
This fuse features an aR operating class specifically intended for partial-range protection of semiconductor devices. Its ultra-rapid performance helps limit the thermal and electrical energy reaching components such as diodes, thyristors, rectifiers and IGBTs during a fault, reducing the risk of equipment damage and costly production downtime.
With a rated current of 90 A and a rated voltage of 690 V AC, the Mersen N097256 is ideal for variable frequency drives, industrial converters, inverters, UPS systems and power supplies. Its compact 36 × 55 mm BS-style body, angled terminals and integrated striker support straightforward installation and reliable fuse operation indication.
Key Advantages
- Ultra-rapid semiconductor fuse designed for power electronics.
- 90 A rated current for industrial protection applications.
- 690 V AC voltage rating suitable for modern electrical systems.
- aR operating class provides fast semiconductor short-circuit protection.
- Integrated striker enables clear fuse operation indication.
- Strong current-limiting performance helps minimise equipment damage and downtime.
Key Features
- Mersen Protistor URGL high-speed fuse range.
- 90 A nominal current rating.
- 690 V AC rated voltage.
- aR partial-range protection characteristic.
- Compact 36 × 55 mm BS-style fuse body.
- Integrated striker indication mechanism.
- Angled terminal brackets for secure installation.
- Designed for industrial semiconductor and converter protection.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses such as the Mersen N097256 are designed to interrupt dangerous fault currents before sensitive power electronic components sustain extensive damage. Their rapid operation limits the let-through energy generated during a short circuit, helping protect semiconductor assemblies and improve overall system availability.
The aR characteristic provides partial-range protection against short-circuit currents and is specifically intended for semiconductor equipment. Suitable supplementary overload protection should be incorporated into the electrical system where complete overload and short-circuit protection is required.
Typical Applications
- Variable frequency drives and motor controllers.
- Industrial power converters and rectifiers.
- Inverters and power conversion equipment.
- Uninterruptible power supply systems.
- Industrial power supplies and battery chargers.
- Automation panels and semiconductor-controlled machinery.
