Why Choose the Mersen NH2GS69V250PV High-Speed Fuse?
The Mersen NH2GS69V250PV is an industrial NH Size 2 high-speed fuse designed to provide dependable protection for semiconductor equipment, power conversion systems and associated electrical circuits. Manufactured by Mersen, it combines fast fault interruption with full-range overcurrent protection for demanding industrial installations.
Featuring a gS utilisation category, the NH2GS69V250PV is designed to protect semiconductor devices against both overload and short-circuit conditions. This makes it suitable for applications where coordinated protection of sensitive power electronics and connected conductors is required.
With a rated current of 250 A and a rated operating voltage of 690 V AC, the NH2GS69V250PV is suitable for variable frequency drives, industrial converters, motor-control equipment and power distribution assemblies. Its standard NH blade format supports secure installation in compatible NH Size 2 fuse bases and switch-fuse units.
Key Advantages
- High-speed gS fuse for semiconductor and circuit protection.
- 250 A rated current for industrial power applications.
- 690 V AC voltage rating for demanding electrical systems.
- Full-range protection against overload and short-circuit currents.
- Low energy let-through helps protect sensitive power electronic components.
- Standard NH Size 2 blade format simplifies installation and replacement.
Key Features
- Mersen industrial high-speed fuse range.
- 250 A rated current.
- 690 V AC rated voltage.
- gS full-range utilisation category.
- NH Size 2 square-body construction.
- NH blade contacts for compatible fuse bases.
- Visual fuse-status indication.
- Designed for rapid fault interruption and low I²t performance.
Reliable Protection for Industrial Power Electronics
High-speed fuses are engineered to interrupt fault currents before excessive electrical and thermal energy can damage sensitive semiconductor components. Their low I²t characteristics help reduce stress on diodes, thyristors, IGBTs and other power electronic devices.
Unlike partial-range semiconductor fuses, a gS fuse provides full-range protection against both overload and short-circuit currents. This can simplify protection coordination in drives, converters and industrial power systems while helping improve equipment reliability and reduce unplanned downtime.
Typical Applications
- Variable frequency drives and industrial motor drives.
- Power converters, rectifiers and inverters.
- Semiconductor power assemblies.
- Industrial power supplies and UPS systems.
- Motor-control centres and automation panels.
- Renewable energy power-conversion equipment.
