Why Choose the Mersen NH1GG69V250 NH Fuse Link?
The Mersen NH1GG69V250 is a high-performance NH1 size gG fuse link designed to provide full-range protection for cables, electrical equipment and low-voltage industrial power systems. Rated at 250 A and 690 V AC, it delivers dependable protection against both overload currents and short-circuit faults.
Its gG operating characteristic makes the NH1GG69V250 suitable for general-purpose circuit protection across its complete breaking range. The fuse link responds to sustained overloads and rapidly interrupts severe fault currents, helping protect conductors, switchgear and connected equipment from damaging thermal and electrodynamic effects.
The fuse features a robust ceramic body, silver-plated copper blade contacts and live gripping tags for installation and removal with a suitable NH fuse puller. An integrated double indicator provides clear visual confirmation when the fuse has operated, supporting efficient maintenance and fault diagnosis.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 250 A rated current for high-power industrial circuits.
- 690 V AC and 400 V DC ratings for versatile installations.
- High 80 kA breaking capacity for demanding fault conditions.
- Double indication system supports rapid identification of an operated fuse.
- Standard NH1 construction for use with compatible fuse bases and disconnectors.
Key Features
- Mersen NH low-voltage IEC fuse-link range.
- NH1 standard fuse size.
- 250 A rated current.
- 690 V AC rated voltage.
- 400 V DC rated voltage.
- gG full-range operating characteristic.
- 80 kA maximum breaking capacity.
- Integrated double fuse indicator.
- Live gripping tags for compatible NH handling equipment.
- Silver-plated copper plain-blade terminals.
Reliable Protection for Industrial Power Circuits
The Mersen NH1GG69V250 protects electrical cables, distribution feeders and industrial equipment against excessive current. During an overload or short circuit, the internal fuse element interrupts the current before damaging heat can build up within conductors, switchgear or connected machinery.
Its high breaking capacity enables the fuse to safely interrupt substantial prospective fault currents. The NH1GG69V250 must be installed in a compatible NH1 fuse base, fuse switch or disconnector and should only be handled by qualified electrical personnel using an approved NH fuse puller and appropriate protective equipment.
Typical Applications
- Industrial low-voltage distribution boards.
- Electrical switchgear and control panels.
- Cable and feeder circuit protection.
- Manufacturing and processing equipment.
- Commercial and industrial power installations.
- Fuse switches and distribution disconnectors.
