Why Choose the Mersen NH3GG50V425 NH Fuse Link?
The Mersen NH3GG50V425 is a high-performance DIN NH gG fuse link designed to provide full-range protection for low-voltage electrical distribution systems. Its gG operating characteristic protects cables, conductors, switchgear and general-purpose electrical equipment against both sustained overloads and high short-circuit currents.
Part of the established Mersen NH gG 500 V fuse-link range, the NH3GG50V425 combines a robust ceramic body with silver-plated copper blade contacts, live gripping lugs and a double fuse-operation indicator. This construction supports reliable performance in demanding industrial installations while allowing qualified personnel to identify and replace an operated fuse efficiently.
With a rated current of 425 A, a voltage rating of 500 V AC and 250 V DC capability, this NH Size 3 fuse link is suitable for high-current feeder circuits, distribution panels and industrial switchgear requiring dependable circuit protection and a breaking capacity of up to 120 kA.
Key Advantages
- Heavy-duty NH Size 3 gG fuse link for high-current applications.
- 425 A rated current for industrial power distribution.
- 500 V AC and 250 V DC operating capability.
- Provides full-range overload and short-circuit protection.
- High 120 kA AC breaking capacity for dependable fault interruption.
- Double indicator provides clear visual confirmation after operation.
Key Features
- Mersen NH gG 500 V fuse-link series.
- 425 A rated current.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- NH Size 3 construction.
- General-purpose gG utilisation category.
- Live, non-isolated gripping lugs.
- Integrated double fuse-operation indicator.
- Silver-plated copper blade contacts.
- Durable ceramic insulating body.
Reliable Protection for High-Current Distribution Systems
The gG operating characteristic provides complete protection across the fuse link's specified operating range. The Mersen NH3GG50V425 responds to sustained overload currents and rapidly interrupts severe short-circuit faults, helping protect cables, busbars, switchgear and connected electrical equipment.
Its high breaking capacity, current-limiting performance and standardised DIN NH construction make it suitable for use by panel builders, OEMs, electrical contractors and industrial maintenance teams. Installation and replacement should be completed by qualified personnel using compatible NH equipment and an approved fuse-link replacement device.
Typical Applications
- Industrial power distribution systems.
- Main switchboards and distribution panels.
- High-current cable and feeder protection.
- Motor control centres and industrial switchgear.
- OEM machinery and production equipment.
- Commercial and infrastructure electrical installations.
