Why Choose the Mersen NH4GG69V500P-2 NH Fuse Link?
The Mersen NH4GG69V500P-2 is a heavy-duty NH gG low voltage fuse link designed to provide full-range protection for high-current industrial cables, electrical equipment and power distribution systems. Manufactured as part of the established Mersen NH fuse-link range, it protects installations against both sustained overloads and severe short-circuit currents.
With a 500 A rated current and a 690 V AC rated operating voltage, this NH4 fuse link is suitable for demanding industrial switchboards, distribution panels and infrastructure applications. Its high 80 kA AC breaking capacity enables reliable interruption of substantial prospective fault currents before they damage cables or connected equipment.
The NH4GG69V500P-2 incorporates a striker mechanism that can provide remote indication or operate compatible switching equipment when the fuse has opened. Its robust NH Size 4 construction, 100 mm body width and live gripping lugs support dependable operation and safe handling by qualified electrical professionals using an approved NH fuse puller.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 500 A rated current for high-load industrial applications.
- 690 V AC rated operating voltage.
- High 80 kA AC breaking capacity.
- Integrated striker supports remote indication or compatible switching functions.
- Live gripping lugs assist safe installation and replacement by qualified personnel.
Key Features
- Mersen NH gG fuse-link series.
- NH Size 4 construction.
- 500 A rated current.
- 690 V AC rated voltage.
- gG operating characteristic for full-range cable and equipment protection.
- 80 kA AC breaking capacity.
- Integrated striker indication mechanism.
- Live metal gripping lugs.
- DIN NH blade-contact format.
- Robust ceramic body for industrial installations.
Reliable Full-Range Protection for High-Current Circuits
The Mersen NH4GG69V500P-2 uses a gG operating characteristic to protect cables and general electrical equipment across the full fault-current range. It can interrupt relatively low overcurrents as well as high-energy short circuits, allowing it to function as a complete overcurrent protection device when correctly selected and coordinated.
Its striker mechanism can provide a mechanical indication when the fuse operates and may be used with compatible equipment for remote signalling or switching. The fuse must be installed in a correctly rated NH4 fuse base and handled by qualified personnel because the NH system does not inherently prevent the installation of an incorrectly rated replacement fuse.
Typical Applications
- High-current industrial power distribution systems.
- Main and sub-distribution switchboards.
- Industrial switchgear and fuse-disconnector assemblies.
- Protection of heavy-duty cables and conductors.
- Manufacturing and process plant electrical systems.
- Commercial and industrial infrastructure.
