Why Choose the Mersen NH3GG50V315 NH Fuse-Link?
The Mersen NH3GG50V315 is a high-performance NH3 gG fuse-link designed to provide full-range protection for cables, switchgear and electrical equipment in low-voltage power distribution systems. Manufactured to the DIN NH format, it reliably interrupts both overload currents and high-level short-circuit faults in demanding industrial and commercial installations.
With a rated current of 315 A, an AC voltage rating of 500 V and a DC voltage rating of 250 V, this fuse-link is suitable for protecting high-current feeders and distribution circuits. Its gG operating characteristic means that it can be used as a standalone protective device across the complete operating range, from low overcurrents through to severe fault conditions.
The NH3GG50V315 features live gripping tags, plain brass blade terminals and a durable ceramic insulating body. A double indication system supports convenient identification of an operated fuse-link, while the 120 kA AC breaking capacity provides dependable interruption where high prospective short-circuit currents may occur.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 315 A rated current for high-current distribution circuits.
- 500 V AC and 250 V DC ratings for flexible applications.
- High 120 kA AC breaking capacity for reliable fault interruption.
- Double indication system allows quick identification of fuse operation.
- Standard NH3 format for use with compatible fuse bases and switch disconnectors.
- Robust ceramic construction for demanding industrial environments.
Key Features
- Mersen NH gG 500 V AC fuse-link series.
- NH3 fuse size manufactured to the DIN NH format.
- 315 A rated current.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- gG full-range operating characteristic.
- 120 kA maximum AC breaking capacity.
- Integrated double blown-fuse indicator.
- Live gripping tags for use with an appropriate NH fuse puller.
- Plain brass blade terminals.
- Durable ceramic insulating body.
- Clip mounting in compatible NH equipment.
Reliable Protection for Low-Voltage Distribution Systems
A gG fuse-link provides complete protection across its operating range, allowing it to respond to sustained overload conditions as well as high-energy short circuits. During a serious electrical fault, the fuse element interrupts the current rapidly and limits the thermal and electrodynamic stresses imposed on cables, switchgear and connected equipment.
The Mersen NH3GG50V315 is designed for installation by qualified electrical professionals within compatible NH fuse bases and fuse-switch disconnectors. Its high breaking capacity, robust construction and clear indication system make it suitable for critical power distribution applications where dependable circuit protection is required.
Typical Applications
- Industrial low-voltage distribution boards.
- Main electrical feeders and sub-distribution circuits.
- Commercial building power distribution.
- Motor control centres and machinery panels.
- Cable and conductor protection.
- NH fuse-switch disconnectors.
- Manufacturing and processing facilities.
- Infrastructure and utility installations.
