Why Choose the Mersen H1032960 High-Voltage Fuse?
The Mersen H1032960, catalogue number 45DB360V20PTS, is a high-voltage DIN back-up fuse-link developed to provide dependable protection for medium-voltage transformers against damaging short-circuit currents. Part of the advanced Mersen Limitor®-PTS range, 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 20 A, the H1032960 rapidly interrupts high fault currents while helping to minimise thermal and mechanical stress on transformers, switchgear and associated electrical equipment. Its innovative low-loss fuse element design reduces operating temperatures within compact switchgear compartments while maintaining excellent current-limiting performance.
Manufactured with a durable ceramic body, 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 537 mm in length.
Key Advantages
- Designed specifically for medium-voltage transformer protection.
- 36 kV AC rated voltage for industrial and utility distribution systems.
- 20 A rated current.
- Low power dissipation helps reduce operating temperatures.
- Current-limiting operation helps minimise fault energy.
- Integrated 80 N thermal striker enhances switchgear protection.
- Suitable for both air-insulated and gas-insulated switchgear.
- Manufactured using premium ceramic, silver and copper materials.
Key Features
- Mersen Limitor®-PTS back-up fuse series.
- 36 kV AC IEC rated voltage.
- 20 A rated current.
- 31.5 kA maximum breaking capacity.
- 95 A minimum breaking current.
- 3900 A²s clearing I²t.
- 84 W power dissipation at rated current.
- 56 mm fuse diameter.
- 537 mm fuse length.
- 80 N thermal striker.
- Pure silver fuse elements.
- Silver-coated copper end caps with ceramic body.
The Mersen H1032960 belongs to the Limitor®-PTS family of transformer protection fuses. Its advanced low-loss fuse element design reduces heat generation during normal operation while maintaining excellent current-limiting performance during severe short-circuit faults. This makes it particularly suitable for compact switchgear installations.
The integrated thermal striker provides additional protection by operating compatible switchgear mechanisms if excessive temperatures develop within the fuse compartment, helping improve operational safety and equipment reliability. Siemens and Ormazabal recommend the Limitor®-PTS range for compatible gas-insulated switchgear applications.
Typical Applications
- Medium-voltage transformer protection.
- Gas-insulated switchgear (GIS).
- Air-insulated switchgear.
- Transformer feeder panels.
- Industrial electrical distribution systems.
- Utility substations.
- Fuse-switch combination units.
- Infrastructure power distribution.
