Why Choose the Mersen H218668 DIII Fuse Link?
The Mersen H218668, catalogue number DIIIGG69V25, is a high-performance 25 A gG DIN D fuse link designed to provide reliable protection for low-voltage electrical circuits, cables and power distribution equipment against overloads and short-circuit currents. Part of Mersen's proven D fuse-link range, it is ideal for industrial and commercial electrical installations operating on higher voltage distribution systems.
Manufactured in the DIII screw fuse format, the H218668 is rated for operation at up to 690 V AC. Its gG utilisation category delivers full-range protection for both conductors and electrical equipment, while the robust ceramic construction ensures dependable long-term performance in demanding industrial environments.
The fuse features a yellow colour-coded indicator corresponding to its 25 A current rating, allowing rapid visual identification during installation and maintenance. Its high breaking capacity makes it suitable for industrial switchboards, distribution panels and critical low-voltage power systems.
Key Advantages
- Reliable gG full-range protection against overloads and short circuits.
- 25 A rated current with yellow identification indicator.
- Suitable for 690 V AC industrial installations.
- 50 kA breaking capacity for demanding fault conditions.
- Robust ceramic construction for long service life.
- Compatible with standard DIII DIN D fuse holders.
Key Features
- Mersen D fuse-link series.
- DIIIGG69V25 catalogue designation.
- 25 A rated current.
- 690 V AC rated voltage.
- gG utilisation category.
- Yellow colour-coded indicator.
- Ceramic insulated body.
- Visual operating indicator.
- Designed for cable and conductor protection.
Reliable Protection for Industrial Power Distribution
The Mersen H218668 safely interrupts excessive fault currents before they can damage cables, conductors and connected equipment. Its gG operating characteristic provides complete protection against both overloads and short-circuit conditions, making it ideal for industrial low-voltage power distribution systems.
The DIN D screw fuse system remains widely used because it combines dependable protection with straightforward replacement and colour-coded identification, allowing maintenance personnel to quickly verify the correct current rating.
Typical Applications
- Industrial switchboards.
- Main distribution panels.
- Commercial electrical installations.
- Motor control centres.
- Cable and conductor protection.
- Low-voltage power distribution systems.
