Why Choose the Mersen NH4AGG50V630 NH Fuse-Link?
The Mersen NH4AGG50V630 is a heavy-duty DIN NH gG fuse-link designed to provide reliable full-range overload and short-circuit protection for industrial power distribution systems, switchgear, cables and electrical equipment. Manufactured by Mersen, this NH4a size fuse-link is engineered for demanding low voltage applications where high fault interruption capability and long service life are essential.
Part of the trusted Mersen NH gG 500 V AC fuse-link series, the NH4AGG50V630 features live gripping lugs and a centre-mounted indicator for quick visual inspection and simplified maintenance. Its robust ceramic construction and advanced current-limiting performance help minimise damage to downstream equipment during electrical fault conditions while ensuring dependable protection of industrial installations.
With a rated current of 630 A, a rated operating voltage of 500 V AC and a 250 V DC rating, the NH4AGG50V630 is ideal for protecting high-current distribution systems, industrial switchboards, transformers and heavy-duty electrical equipment.
Key Advantages
- Full-range gG protection for industrial electrical distribution.
- 630 A rated current for high-power applications.
- 500 V AC and 250 V DC voltage ratings.
- 120 kA AC breaking capacity for excellent fault interruption.
- Current-limiting design helps reduce thermal and mechanical stress.
- Centre indicator enables rapid identification of an operated fuse-link.
- Live gripping lugs support safe installation and replacement.
Key Features
- Mersen NH gG 500 V AC fuse-link series.
- 630 A rated current.
- 500 V AC / 250 V DC rated voltage.
- DIN NH4a size construction.
- gG utilisation category for full-range protection.
- Centre-mounted fuse status indicator.
- Live gripping lugs.
- Ceramic industrial fuse construction.
- 100 mm body width.
- RoHS-compliant design.
Reliable Full-Range Protection for Industrial Power Systems
The Mersen NH4AGG50V630 provides comprehensive protection against both overloads and short-circuit currents. Its gG operating characteristic makes it suitable for protecting cables, conductors, switchgear, transformers and general electrical equipment throughout the complete operating current range.
Its advanced current-limiting construction reduces the amount of energy released during electrical faults, helping protect downstream equipment from thermal and mechanical damage. This contributes to improved reliability, reduced maintenance requirements and longer service life for industrial electrical installations.
Typical Applications
- Industrial electrical distribution systems.
- High-current switchboards.
- Transformer protection.
- Cable and conductor protection.
- Industrial control panels.
- Manufacturing and processing facilities.
