Why Choose the Mersen NH4GG50V630 NH Fuse-Link?
The Mersen NH4GG50V630 is a heavy-duty DIN NH gG fuse-link designed to provide comprehensive protection against overloads and short circuits in low-voltage electrical distribution systems. As part of the trusted Mersen NH gG 500 V AC fuse-link range, it is engineered for demanding industrial, commercial and infrastructure applications where reliable circuit protection is essential.
Manufactured in accordance with IEC standards, this NH Size 4 fuse-link combines excellent current limiting performance with a high breaking capacity to minimise damage during electrical faults. The robust ceramic body, live gripping lugs and centre indicator provide safe installation, dependable operation and quick identification of a blown fuse.
With a rated current of 630 A, a 500 V AC rating and a 250 V DC rating, the NH4GG50V630 is ideally suited for protecting switchgear, feeders, motor circuits, distribution panels and industrial power systems. Its NH Size 4 format ensures compatibility with standard DIN NH fuse bases.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 630 A rated current for high-power electrical distribution.
- 500 V AC and 250 V DC ratings.
- High current limiting performance reduces fault energy.
- Centre indicator provides rapid visual fuse status identification.
- Compatible with standard DIN NH Size 4 fuse bases.
- Suitable for demanding industrial and commercial installations.
Key Features
- Mersen NH gG fuse-link series.
- DIN NH Size 4.
- 630 A rated current.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- General-purpose gG operating characteristic.
- Centre blown-fuse indicator.
- Live gripping lugs.
- Ceramic fuse body.
- RoHS compliant.
Reliable Protection for Low-Voltage Distribution Systems
The Mersen NH4GG50V630 provides full-range protection for electrical distribution circuits by safely interrupting overload and short-circuit currents before damage can occur. Its gG operating characteristic makes it suitable for protecting cables, switchgear, feeders and general electrical installations across a wide range of industrial applications.
Its excellent current limiting performance helps reduce thermal and mechanical stress on connected equipment, improving system reliability while reducing maintenance costs and downtime.
Typical Applications
- Industrial power distribution systems.
- Main switchboards.
- Electrical feeder protection.
- Motor control centres.
- Commercial buildings.
- OEM electrical equipment.
- Infrastructure and utility installations.
