Why Choose the Mersen NH1GG40V250-1 NH Fuse Link?
The Mersen NH1GG40V250-1 is a high-performance DIN NH gG low-voltage fuse link designed to protect cables, conductors and electrical equipment against overloads and short circuits. Manufactured by Mersen, this full-range fuse link provides dependable protection for industrial power distribution systems, switchgear and electrical control installations.
Featuring a 250 A rated current, a 400 V AC rated voltage and an NH1-size body, the NH1GG40V250-1 is suitable for high-current cable and feeder protection. Its gG operating characteristic allows it to interrupt currents ranging from sustained overloads to severe short-circuit faults.
The fuse incorporates a double blown-fuse indicator for rapid fault identification and isolated gripping lugs for safer handling by qualified professionals. Its standard DIN NH construction supports straightforward installation in compatible fuse bases and switch disconnectors.
Key Advantages
- Full-range gG protection for cables and electrical equipment.
- 250 A rated current for high-current industrial circuits.
- 400 V AC rated voltage for low-voltage distribution systems.
- Current-limiting operation helps reduce the effects of severe fault currents.
- Double indicator enables rapid identification of an operated fuse.
- Isolated gripping lugs support safer maintenance and replacement.
Key Features
- Mersen NH gG fuse-link series.
- Catalogue number: NH1GG40V250-1.
- Mersen item number: E223725.
- NH1 fuse size.
- 250 A rated current.
- 400 V AC rated voltage.
- gG full-range operating characteristic.
- Double blown-fuse indication system.
- Isolated gripping lugs.
- Standard blade-contact NH construction.
Reliable Protection for Industrial Electrical Systems
The gG utilisation category provides full-range protection against overload and short-circuit currents. This makes the Mersen NH1GG40V250-1 suitable for protecting distribution cables, feeders, switchgear and general-purpose industrial electrical equipment.
Its current-limiting performance helps reduce the thermal and electrodynamic stresses generated by high fault currents. This can minimise damage to connected equipment, improve electrical safety and reduce downtime following an overcurrent event.
Typical Applications
- Industrial power distribution systems.
- Electrical switchboards and distribution panels.
- High-current cable and feeder protection.
- NH fuse-switch disconnectors.
- Industrial machinery and control panels.
- Commercial and infrastructure electrical installations.
