Why Choose the Mersen L081798 55GD55V25 Medium-Voltage Fuse?
The Mersen L081798, also identified as 55GD55V25, is a high-performance medium-voltage cylindrical fuse-link designed to provide dependable overcurrent and short-circuit protection for electrical distribution systems. Rated at 25 A and 5.5 kV AC, it is suitable for protecting industrial switchgear, public lighting installations and medium-voltage power distribution equipment.
As part of Mersen's trusted range of medium-voltage fuse-links, the L081798 delivers rapid fault interruption with current-limiting performance, helping minimise thermal and mechanical stress on transformers, cables and associated electrical equipment. Its proven design supports improved system reliability and reduced maintenance requirements.
Manufactured with a cylindrical body measuring approximately 55 × 259 mm, this fuse-link is intended for installation in compatible medium-voltage fuse holders and protection assemblies. Proper fuse selection and coordination are essential for safe operation and optimum protection performance.
Key Advantages
- Reliable medium-voltage overcurrent and short-circuit protection.
- 25 A rated current for compatible distribution circuits.
- 5.5 kV AC rated voltage for medium-voltage installations.
- Current-limiting design reduces fault energy.
- Suitable for industrial switchgear and public lighting applications.
- Manufactured by Mersen for dependable long-term performance.
Key Features
- Mersen L081798 medium-voltage fuse-link.
- Catalogue designation: 55GD55V25.
- 25 A nominal current rating.
- 5,500 V AC rated voltage.
- Cylindrical 55 × 259 mm construction.
- Current-limiting fuse technology.
- Suitable for compatible medium-voltage fuse holders.
- Designed for industrial and infrastructure applications.
Reliable Protection for Medium-Voltage Systems
Medium-voltage fuse-links are designed to interrupt excessive fault currents before they can damage transformers, switchgear and other valuable electrical assets. Their current-limiting characteristics reduce peak fault current and minimise thermal stress throughout the protected installation.
The Mersen L081798 should only be installed within compatible fuse holders and selected according to the voltage, current and fault level of the electrical system. Installation should always be completed by suitably qualified personnel.
Typical Applications
- Public lighting distribution systems.
- Medium-voltage switchgear.
- Industrial electrical distribution.
- Transformer protection.
- Utility infrastructure.
- Replacement fuse-links for compatible Mersen installations.
