Why Choose the Mersen W1032949 Limitor®-PTS High Voltage Back-up Fuse?
The Mersen W1032949 is a high performance Limitor®-PTS DIN high voltage back-up fuse-link designed for dependable transformer protection in medium voltage electrical distribution systems. Manufactured in accordance with IEC 60282-1 and VDE 0670 T402, it delivers rapid interruption of high fault currents while incorporating innovative low power dissipation technology and a thermal striker to help prevent overheating within enclosed switchgear.
Part of the advanced Mersen Limitor®-PTS range, the W1032949 features pure silver fuse elements, silver-plated copper end caps and a durable ceramic body for exceptional electrical performance and long service life. Its patented thermal striker provides enhanced protection for modern air insulated and gas insulated switchgear installations.
Rated at 12 kV AC with a 31.5 A current rating, the W1032949 is ideally suited for protecting medium voltage transformers used throughout industrial substations, utility networks and renewable energy installations.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Innovative low power dissipation technology reduces heat generation.
- 12 kV AC voltage rating for medium voltage distribution systems.
- 31.5 A current rating for transformer primary protection.
- Integrated 80 N thermal striker for reliable switchgear operation.
- Manufactured to IEC 60282-1 and VDE 0670 T402 standards.
Key Features
- Mersen Limitor®-PTS back-up fuse-link.
- Catalogue number: 45DB120V32PTS2.
- Rated voltage: 12 kV AC.
- Rated current: 31.5 A.
- Breaking capacity: 65 kA.
- Fuse dimensions: 56 mm diameter × 292 mm length.
- 80 N thermal striker.
- Low power losses for improved thermal performance.
Medium voltage back-up fuse-links protect transformers by rapidly interrupting damaging short-circuit currents before they can cause costly equipment failure. Mersen's Limitor®-PTS technology combines low switching voltage with reduced power losses and an innovative thermal striker to improve the safety and reliability of modern switchgear installations.
The W1032949 is recommended for transformer protection within air insulated and gas insulated switchgear, making it an ideal solution for industrial facilities, utility substations and renewable energy applications requiring dependable medium voltage protection.
Typical Applications
- Medium voltage transformer protection.
- Industrial substations.
- Gas insulated switchgear (GIS).
- Air insulated switchgear.
- Utility power distribution networks.
- Renewable energy installations.
