Why Choose the Mersen N330131 High-Speed Semiconductor Fuse?
The Mersen N330131 is a high-performance Protistor high-speed semiconductor fuse engineered to protect sensitive power electronic equipment against damaging short-circuit currents. Designed to the British Standard fuse-link format, it provides rapid fault interruption and effective current limitation in demanding industrial power conversion applications.
Its aR partial-range operating characteristic is specifically designed for semiconductor protection. During a fault, the N330131 restricts the amount of electrical and thermal energy reaching components such as IGBTs, thyristors, diodes and rectifier assemblies, helping to reduce equipment damage, maintenance requirements and unplanned downtime.
With a rated current of 150 A and a rated voltage of 690 V AC, the Mersen N330131 is suitable for industrial drives, inverters, rectifiers, UPS equipment and power converters. Its size 000 BS88 square-body construction, angled connection terminals and integrated striker support secure installation and convenient fuse operation indication.
Key Advantages
- High-speed semiconductor fuse for industrial power electronics.
- 150 A rated current for demanding conversion and control circuits.
- 690 V AC voltage rating for industrial electrical systems.
- aR operating class provides rapid semiconductor short-circuit protection.
- Integrated striker enables clear indication when the fuse has operated.
- Excellent current-limiting performance helps minimise component damage.
Key Features
- Mersen Protistor high-speed fuse range.
- 150 A nominal current rating.
- 690 V AC rated voltage.
- aR partial-range semiconductor protection characteristic.
- Size 000 BS88 square-body fuse-link.
- Integrated striker indication system.
- Angled bolted connection terminals.
- Designed for drives, converters and semiconductor-controlled equipment.
Rapid Protection for Industrial Power Electronics
The Mersen N330131 is designed to interrupt high fault currents before excessive energy can reach sensitive semiconductor components. Its ultra-rapid response helps limit peak current and let-through energy, reducing thermal and mechanical stress within power electronic assemblies.
As an aR-class fuse, the N330131 provides partial-range protection against short-circuit currents. Appropriate supplementary overload protection should therefore be incorporated where complete protection against both overloads and short circuits is required.
Typical Applications
- Variable frequency drives and industrial motor controllers.
- Power converters and rectifier assemblies.
- Industrial inverters.
- Uninterruptible power supply systems.
- Battery chargers and DC power supplies.
- Semiconductor-controlled industrial machinery.
