Why Choose the Mersen X330139 High Speed Semiconductor Fuse?
The Mersen X330139 is a premium Protistor® BS88 high speed semiconductor fuse designed to provide ultra-fast protection for power electronic equipment and semiconductor devices. Manufactured by Mersen, a global leader in electrical protection solutions, this fuse offers rapid fault interruption to safeguard converters, variable speed drives, inverters and other sensitive industrial equipment from damaging short circuits.
As part of the trusted Protistor® BS88Z fuse range, the X330139 features a robust square body construction with a URC operating characteristic, making it suitable for protecting high-performance power conversion systems. Its low let-through energy and high breaking capacity help maximise equipment reliability while reducing costly downtime.
With a 75 A current rating and a 690 V AC operating voltage, the Mersen X330139 is an excellent choice for industrial automation, renewable energy systems, UPS installations and motor drive applications requiring dependable semiconductor protection.
Key Advantages
- High speed Protistor® semiconductor fuse for industrial power electronics.
- 75 A current rating suitable for demanding applications.
- 690 V AC rated voltage for industrial electrical systems.
- URC operating characteristic for rapid fault clearing.
- High breaking capacity helps protect valuable semiconductor devices.
- Ideal for converters, drives, UPS systems and renewable energy equipment.
Key Features
- Manufacturer: Mersen.
- Series: Protistor® BS88Z.
- Model: X330139.
- Catalogue number: BZ000UC69V75.
- 75 A rated current.
- 690 V AC rated voltage.
- URC high speed semiconductor protection characteristic.
- BS88 size 000 square body design.
- Silver-plated contacts for dependable electrical performance.
Reliable Protection for Industrial Power Electronics
High speed semiconductor fuses are engineered to interrupt fault currents before excessive thermal energy can damage sensitive electronic components. The Mersen X330139 delivers rapid fault clearing, helping extend the service life of IGBT modules, thyristors, diodes and other critical power semiconductor devices.
Its proven Protistor® design makes it suitable for modern industrial automation, renewable energy installations, motor control systems and power conversion equipment where dependable circuit protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Power converters and rectifiers.
- Industrial UPS systems.
- Renewable energy inverters.
- Semiconductor and IGBT protection.
- Industrial automation and control panels.
