Why Choose the Mersen NH1GG50V250 NH Fuse-Link?
The Mersen NH1GG50V250 is a high-performance DIN NH gG low voltage fuse-link designed to provide full-range protection against overloads and short-circuit faults. Its general-purpose gG operating characteristic makes it suitable for protecting cables, conductors, switchgear and electrical equipment in commercial and industrial power distribution systems.
Part of the established Mersen NH gG 500 V AC fuse-link range, this NH1 fuse-link features a double blown-fuse indicator and live gripping lugs. These features allow an operated fuse to be identified quickly and support replacement by a qualified professional using the correct low voltage NH fuse handle.
With a rated current of 250 A, an AC voltage rating of 500 V and a DC voltage rating of 250 V, the NH1GG50V250 delivers dependable protection for demanding electrical installations. Its ceramic body, brass blade contacts and 120 kA AC breaking capacity provide reliable fault interruption and robust long-term performance.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 250 A rated current for high-current distribution applications.
- 500 V AC and 250 V DC voltage ratings.
- High 120 kA AC breaking capacity.
- Double indicator enables rapid identification of an operated fuse.
- Live gripping lugs support handling with the correct NH fuse replacement device.
- Current-limiting operation helps reduce stress on connected equipment.
- Standard NH1 construction for compatible DIN NH fuse bases.
Key Features
- Mersen NH gG 500 V AC fuse-link series.
- Catalogue number: NH1GG50V250.
- Item number: E219815.
- NH1 fuse size.
- 250 A rated current.
- 500 V AC / 250 V DC rated voltage.
- gG full-range operating characteristic.
- Double blown-fuse indication system.
- Live gripping lugs.
- Ceramic body with plain brass blade contacts.
Reliable Protection for Industrial Power Distribution
gG fuse-links are designed to interrupt currents across the full operating range, from sustained overloads to severe short-circuit faults. Their current-limiting performance helps reduce the thermal and mechanical energy imposed on cables, switchgear and connected equipment during fault conditions.
The Mersen NH1GG50V250 is designed for installation in compatible NH1 fuse bases as part of a complete DIN NH plug-in fuse system. Because NH systems do not prevent the installation of every alternative current rating, selection, installation and replacement should be carried out by a qualified electrical professional.
Typical Applications
- Industrial power distribution systems.
- Main and sub-distribution switchboards.
- Low voltage switchgear assemblies.
- Cable and conductor protection.
- Motor control centres.
- Industrial machinery and control panels.
- OEM electrical distribution equipment.
- Commercial and infrastructure installations.
