Mersen K081797 55GD55V20 medium-voltage cylindrical fuse-link rated at 20 A and 5.5 kV AC for industrial electrical protection.
£127.03
The Mersen K081797, also identified as 55GD55V20, is a high-performance medium-voltage fuse-link engineered to protect electrical distribution equipment against overloads and short-circuit faults. Rated at 20 A and 5.5 kV AC, it is designed for use in demanding industrial and utility power systems.
As part of Mersen's trusted range of medium-voltage protection products, the K081797 provides rapid fault interruption and current-limiting performance, helping minimise damage to transformers, switchgear, cables and associated equipment during fault conditions.
Manufactured with a cylindrical 55 × 259 mm body, this fuse-link is intended for installation in compatible medium-voltage fuse holders and switchgear assemblies. Its robust construction delivers dependable protection where reliable network operation is essential.
Medium-voltage fuse-links provide fast interruption of excessive fault currents before they can damage valuable electrical equipment. Their current-limiting characteristics reduce thermal and mechanical stresses while improving overall system protection.
The Mersen K081797 should only be installed in compatible equipment by suitably qualified personnel and selected according to the electrical characteristics of the installation.
| Manufacturer | Mersen |
|---|---|
| Product reference | K081797 |
| Catalogue number | 55GD55V20 |
| Product type | Medium-voltage fuse-link |
| Rated current | 20 A |
| Rated voltage | 5.5 kV AC |
| Fuse dimensions | 55 × 259 mm |
| Body type | Cylindrical |
| Operating characteristic | Current limiting |
| Application | Medium-voltage distribution and equipment protection |
It provides medium-voltage overcurrent and short-circuit protection for compatible electrical distribution equipment.
The Mersen K081797 has a nominal current rating of 20 A.
It is rated for operation at up to 5.5 kV AC.
The fuse has an approximate cylindrical body measuring 55 × 259 mm.
It is installed in compatible medium-voltage fuse holders and switchgear for industrial and utility electrical protection.
Mersen medium-voltage fuse-links are trusted worldwide for dependable protection of critical electrical infrastructure, helping maintain system safety and minimise downtime.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...