Why Choose the Mersen G1006118 High-Voltage Fuse?
The Mersen G1006118, catalogue number 45DB175V6,3PT, is a high-voltage DIN back-up fuse-link designed to protect medium-voltage transformers against the effects of short-circuit currents. It belongs to the Mersen Limitor®-PT range, featuring controlled power dissipation and an integrated thermal striker for reliable transformer protection in demanding electrical installations.
Rated at 17.5 kV AC and 6.3 A, the G1006118 provides rapid current-limiting fault interruption, helping to minimise thermal and mechanical stress on transformers, switchgear and associated distribution equipment. Its controlled power dissipation design makes it particularly suitable for compact switchgear applications.
Manufactured using a robust ceramic body with pure silver fuse elements and silver-coated copper end caps, the fuse incorporates an 80 N thermal striker capable of operating compatible switchgear mechanisms or providing fuse operation indication. The DIN-format fuse measures approximately 56 mm in diameter and 367 mm in length.
Key Advantages
- Designed specifically for medium-voltage transformer protection.
- 17.5 kV AC rated voltage for modern distribution systems.
- 6.3 A rated current.
- Current-limiting operation reduces equipment damage during faults.
- Controlled power dissipation supports compact switchgear designs.
- Integrated 80 N thermal striker for enhanced protection.
- High-quality ceramic and silver construction for long service life.
Key Features
- Mersen Limitor®-PT back-up fuse series.
- 17.5 kV AC IEC rated voltage.
- 6.3 A rated current.
- 63 kA breaking capacity.
- 30 A minimum breaking current.
- 1 kA²s clearing I²t.
- 11 W power dissipation at rated current.
- 56 mm body diameter.
- 367 mm overall length.
- 80 N thermal striker.
- Pure silver fuse elements.
- Silver-coated copper end caps with ceramic body.
The Mersen G1006118 is a back-up current-limiting fuse intended to protect transformers from high short-circuit currents. By rapidly interrupting fault currents, it helps reduce mechanical forces and thermal stress, improving the reliability and service life of valuable electrical assets.
Its controlled power dissipation and integrated thermal striker make it particularly suitable for modern switchgear where efficient heat management and enhanced operational safety are important considerations.
Typical Applications
- Medium-voltage transformer protection.
- High-voltage switchgear.
- Fuse-switch combination units.
- Industrial electrical distribution systems.
- Utility substations.
- Commercial power distribution.
- Infrastructure electrical installations.
