Why Choose the Mersen J1032961 High Voltage DIN Back-up Fuse?
The Mersen J1032961 is a premium DIN high voltage back-up fuse engineered for the protection of medium voltage transformers installed within air-insulated and gas-insulated switchgear. As part of the advanced Mersen Limitor®-PTS series, it combines low power dissipation with an integrated thermal striker, delivering dependable protection and improved thermal performance in demanding electrical installations.
Manufactured using pure silver fuse elements, silver-plated copper terminals and a robust ceramic body, the J1032961 is designed in accordance with IEC 60282-1 and VDE T402. Its current-limiting characteristics rapidly interrupt fault currents, helping to minimise thermal and mechanical stress on valuable transformers and associated switchgear.
With a rated voltage of 36 kV AC, a 25 A current rating and an integrated 80 N thermal striker, the Mersen J1032961 provides reliable transformer protection while reducing operating losses through its innovative low power dissipation design.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 36 kV AC rated voltage for demanding power distribution systems.
- 25 A rated current for compatible transformer installations.
- Low power dissipation design helps reduce operating temperatures.
- Integrated 80 N thermal striker for compatible switchgear mechanisms.
- Manufactured to IEC 60282-1 and VDE T402 standards.
Key Features
- Mersen Limitor®-PTS high voltage DIN back-up fuse.
- Catalogue number: 45DB360V25PTS.
- 36 kV AC rated voltage.
- 25 A rated current.
- 56 mm diameter × 537 mm fuse-link.
- Integrated 80 N thermal striker.
- Low power loss construction.
- Suitable for transformer protection in air and gas insulated switchgear.
High voltage back-up fuse-links are designed to interrupt high prospective fault currents before they can damage transformers and associated switchgear. Their current-limiting characteristics reduce the energy released during a fault, helping to improve equipment reliability and minimise maintenance costs.
The Mersen Limitor®-PTS range introduces low power dissipation technology to reduce operating temperatures while maintaining dependable protection. This makes the series particularly suitable for modern compact switchgear installations where thermal management is critical.
Typical Applications
- Medium voltage transformer protection.
- Air-insulated switchgear.
- Gas-insulated switchgear.
- Utility substations.
- Industrial power distribution systems.
- OEM medium voltage electrical equipment.
