Why Choose the Mersen NH000UD69V250PV High-Speed Fuse?
The Mersen NH000UD69V250PV is a compact NH000 high-speed fuse link designed to protect sensitive power semiconductor devices and industrial power electronic equipment against damaging short-circuit currents. Manufactured by Mersen, it provides rapid fault interruption for applications requiring dependable current limitation and low let-through energy.
Its ultra-fast operating characteristics help reduce the electrical and thermal stress placed on semiconductor components during a fault. This makes the NH000UD69V250PV suitable for circuits containing diodes, thyristors, rectifiers, insulated-gate bipolar transistors and other sensitive power electronic devices.
With a rated current of 250 A and a rated voltage of up to 690 V AC, the NH000UD69V250PV is suitable for industrial drives, power converters, inverters and photovoltaic power equipment. Its compact NH000 blade-contact format allows secure installation in compatible NH fuse bases and switch-disconnector assemblies.
Key Advantages
- High-speed fuse link designed for semiconductor protection.
- 250 A rated current for demanding power applications.
- 690 V AC rated voltage suitable for industrial electrical systems.
- Rapid fault interruption helps protect sensitive electronic components.
- Current-limiting performance reduces thermal and mechanical fault stress.
- Compact NH000 blade-contact construction for space-efficient installation.
Key Features
- Mersen high-speed fuse link.
- 250 A rated current.
- 690 V AC rated voltage.
- NH size 000 body format.
- Fast operating characteristics for power semiconductor protection.
- Low let-through energy during short-circuit conditions.
- NH blade contacts for compatible fuse bases and disconnectors.
- Suitable for industrial power conversion and photovoltaic equipment.
Reliable Protection for Power Semiconductor Equipment
High-speed fuse links such as the Mersen NH000UD69V250PV are engineered to interrupt severe fault currents more rapidly than conventional general-purpose fuse links. Their fast response limits the amount of electrical energy that reaches sensitive downstream components during a short circuit.
This current-limiting behaviour is particularly important in variable frequency drives, rectifiers, inverters and photovoltaic power systems where semiconductor devices can be damaged by brief overcurrent events. Correct fuse selection helps improve equipment reliability, minimise unplanned downtime and reduce the risk of costly component failure.
Typical Applications
- Variable frequency drives and industrial motor controllers.
- Power inverters and converter systems.
- Industrial rectifiers and semiconductor assemblies.
- Photovoltaic power conversion equipment.
- Uninterruptible power supplies and battery systems.
- Automation panels and industrial power distribution equipment.
