Why Choose the Mersen F1032958 High-Voltage Back-Up Fuse?
The Mersen F1032958, catalogue reference 45DB360V10PTS, is a high-voltage DIN back-up fuse-link developed for protecting distribution transformers against the damaging thermal and dynamic effects of short-circuit currents. As part of the Mersen Limitor®-PTS series, it combines low power dissipation with an integrated 80 N thermal striker, making it ideal for modern air-insulated and gas-insulated switchgear installations.
Rated at 36 kV AC and 10 A, the F1032958 is engineered to provide dependable transformer protection while reducing heat generation within enclosed switchgear compartments. The Limitor®-PTS range incorporates advanced fuse-element technology that lowers power losses without compromising current-limiting performance.
Manufactured using a robust ceramic body with pure silver fuse elements and silver-plated copper end caps, the fuse offers long-term reliability in demanding medium-voltage installations. The integrated thermal striker provides mechanical indication and can operate compatible switchgear trip mechanisms following fuse operation.
Key Advantages
- High-voltage DIN back-up fuse for transformer protection.
- 36 kV AC rated voltage.
- 10 A rated current.
- Low power dissipation helps reduce switchgear heating.
- 31.5 kA breaking capacity.
- Integrated 80 N thermal striker.
- Current-limiting design reduces thermal and mechanical fault stress.
- Recommended for compatible air-insulated and gas-insulated switchgear.
Key Features
- Mersen Limitor®-PTS series.
- Manufacturer item number F1032958.
- Catalogue number 45DB360V10PTS.
- 36 kV AC IEC rated voltage.
- 10 A rated current.
- 31.5 kA maximum breaking capacity.
- 34 A minimum breaking current.
- Total clearing I²t of 2,000 A²s.
- Power dissipation of approximately 66 W.
- Integrated thermal striker with 80 N operating force.
- Low power loss fuse-element technology.
- DIN clip-mounted construction.
The Mersen F1032958 rapidly interrupts high fault currents before they can damage transformers, switchgear and associated equipment. Its advanced low-loss fuse element design reduces operating temperatures whilst maintaining excellent current-limiting performance during fault conditions.
As a back-up fuse-link, the F1032958 should be coordinated with suitable overload protection. Correct fuse selection should consider transformer characteristics, available fault current and switchgear manufacturer recommendations to ensure optimum protection and long service life.
Typical Applications
- Distribution transformer protection.
- Medium-voltage substations.
- Air-insulated switchgear.
- Gas-insulated switchgear.
- Industrial electrical distribution.
- Utility power networks.
- Renewable energy transformer installations.
- Medium-voltage feeder protection.
