Why Choose the Mersen NH3GG50V400-1 NH Fuse Link?
The Mersen NH3GG50V400-1 is a premium NH3 gG fuse link engineered to provide dependable full-range protection for industrial power distribution systems, switchgear, cables and electrical equipment. Manufactured to DIN NH standards, this low-voltage fuse delivers reliable overload and short-circuit protection while providing excellent current-limiting performance in demanding industrial applications.
Featuring a gG operating characteristic, the NH3GG50V400-1 protects electrical circuits across the complete fault current range, from sustained overloads through to severe short-circuit conditions. It incorporates a double indication system together with isolated gripping lugs, enabling rapid identification of an operated fuse while improving handling safety during installation and replacement by qualified personnel.
With a rated current of 400 A, an AC voltage rating of 500 V and a DC voltage rating of 250 V, this NH size 3 fuse link is ideally suited for industrial switchboards, power distribution panels and machinery supply circuits. Its ceramic body and blade contact construction ensure long service life and dependable electrical performance.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 400 A rated current for demanding industrial applications.
- Suitable for systems operating up to 500 V AC and 250 V DC.
- 120 kA breaking capacity provides exceptional fault protection.
- Double indication system enables rapid identification of an operated fuse.
- Isolated gripping lugs improve safety during installation and replacement.
Key Features
- Mersen NH gG fuse-link series.
- 400 A current rating.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- NH3 DIN fuse size.
- gG full-range operating characteristic.
- Double visual indication system.
- Isolated gripping lugs.
- Robust ceramic body with blade contacts.
Reliable Protection for Industrial Electrical Systems
The Mersen NH3GG50V400-1 rapidly interrupts overload and short-circuit currents before they can damage cables, switchgear and connected electrical equipment. Its current-limiting characteristics help reduce thermal stress and electrodynamic forces, improving equipment reliability while reducing maintenance costs and downtime.
As a gG full-range fuse, this fuse link provides comprehensive protection against both overload and short-circuit faults. It is widely used in industrial power distribution systems where dependable low-voltage circuit protection is essential. Installation and replacement should always be carried out by qualified personnel using compatible NH fuse bases and approved fuse pullers.
Typical Applications
- Industrial power distribution systems.
- Electrical switchboards.
- Distribution panels and control cabinets.
- Cable and conductor protection.
- Industrial machinery.
- Commercial and manufacturing electrical installations.
