Why Choose the Mersen NH000UD69V32PV Protistor® High-Speed Fuse?
The Mersen NH000UD69V32PV is a compact NH Size 000 high-speed semiconductor protection fuse designed to protect sensitive power electronic components against damaging short-circuit currents. Part of the established Mersen Protistor® fuse range, it is suitable for safeguarding IGBTs, thyristors, power diodes, rectifiers and other semiconductor devices used in industrial electrical equipment.
High-speed semiconductor fuses operate more rapidly than conventional industrial fuses, limiting the thermal and electrical energy transferred during a fault. The NH000UD69V32PV helps reduce stress on valuable electronic components, supporting improved equipment reliability and helping minimise costly downtime following short-circuit conditions.
With a rated current of 32 A and a maximum rated voltage of 690 V AC, this compact NH fuse is suitable for power converters, variable frequency drives, industrial power supplies, rectifier assemblies and automation systems requiring dependable semiconductor protection.
Key Advantages
- High-speed semiconductor protection fuse for industrial power electronics.
- 32 A rated current for lower-current protection applications.
- 690 V AC voltage rating for industrial electrical systems.
- Compact NH Size 000 construction.
- Low let-through energy helps minimise semiconductor damage.
- Suitable for drives, converters, rectifiers and power supplies.
Key Features
- Mersen Protistor® high-speed fuse technology.
- NH Size 000 fuse format.
- 32 A rated current.
- 690 V AC rated voltage.
- Designed for short-circuit protection of semiconductor components.
- Fast fault-current interruption with low let-through energy.
- Industrial blade-contact configuration.
- Suitable for compatible NH fuse holders and switching devices.
Reliable Protection for Power Electronic Equipment
Semiconductor devices can suffer permanent damage when exposed to excessive fault current, even for a very short period. The Mersen NH000UD69V32PV is designed to interrupt short-circuit currents rapidly, limiting the energy passed to protected components and reducing the risk of extensive secondary damage.
Correct fuse coordination is essential when protecting power electronics. The fuse voltage, current rating, operating characteristics and let-through energy must be compatible with the semiconductor device and the wider electrical system. Replacement selection should therefore be based on the complete Mersen reference and the equipment manufacturer’s specifications.
Typical Applications
- Variable frequency drives and motor controllers.
- Industrial power converters and rectifiers.
- Switch-mode and industrial power supplies.
- Uninterruptible power supply systems.
- Inverters and power-conditioning equipment.
- Industrial automation and control panels.
