Why Choose the Mersen NH3GG40V630 NH Fuse-Link?
The Mersen NH3GG40V630 is a heavy-duty NH gG low voltage fuse-link designed to provide full-range protection against overloads and short circuits in industrial electrical distribution systems. Manufactured to DIN NH standards, it is engineered to protect cables, switchgear, distribution equipment and electrical installations operating on 400 V AC systems.
As part of the proven Mersen NH gG 400 VAC fuse-link series, the NH3GG40V630 combines a robust ceramic body with high current-limiting performance and a 100 kA breaking capacity. Featuring double indication and live gripping tags, it enables rapid fuse identification and safe handling using an approved NH fuse puller.
Rated at 630 A and designed for 400 V AC electrical systems, the NH3GG40V630 is ideally suited for industrial switchgear, power distribution panels, OEM equipment, manufacturing plants and commercial electrical infrastructure where dependable circuit protection is essential.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 630 A current rating for high-power electrical distribution.
- 400 V AC operating voltage.
- 100 kA breaking capacity for dependable fault interruption.
- Double indicator enables rapid visual identification after operation.
- Live gripping tags support safer fuse replacement.
- Designed to DIN NH standards for reliable industrial performance.
Key Features
- Mersen NH gG 400 VAC fuse-link series.
- NH3 fuse size.
- 630 A rated current.
- 400 V AC rated voltage.
- General-purpose gG operating characteristic.
- Double fuse operation indicator.
- Live gripping tags.
- 70 mm body width.
- High current-limiting performance.
- Robust ceramic insulating body.
Reliable Protection for Industrial Power Distribution
The Mersen NH3GG40V630 provides comprehensive protection for industrial electrical distribution systems by responding rapidly to both overload conditions and severe short-circuit faults. Its gG operating characteristic makes it suitable for protecting cables, switchgear, busbars and general electrical equipment in demanding industrial environments.
Its high current-limiting capability helps reduce thermal and mechanical stress during fault conditions, improving equipment protection while reducing downtime. Designed for installation in compatible NH3 fuse bases, the fuse-link should always be installed and replaced by qualified electrical personnel using the correct NH fuse handling equipment.
Typical Applications
- Industrial switchgear.
- Power distribution panels.
- Manufacturing facilities.
- Commercial electrical installations.
- OEM machinery.
- Cable and conductor protection.
- Industrial infrastructure projects.
