Why Choose the Mersen L1032963 High Voltage Transformer Fuse?
The Mersen L1032963 is a premium Limitor®-PTS DIN high voltage back-up fuse-link designed to provide dependable short-circuit protection for medium voltage transformers. Developed in accordance with IEC 60282-1 and VDE T402, this fuse is engineered for use in modern air-insulated and gas-insulated switchgear where reliable transformer protection is essential.
Part of Mersen's advanced Limitor®-PTS range, the L1032963 incorporates a low power dissipation fuse element and an integrated 80 N thermal striker. This innovative design reduces heating within the fuse compartment while maintaining excellent fault interruption performance, making it particularly suitable for switchgear manufacturers including Siemens and Ormazabal.
With a rated voltage of 36 kV AC, a 40 A current rating and a 65 mm diameter × 537 mm length, the L1032963 is ideal for protecting medium voltage transformers from damaging short-circuit currents whilst maintaining dependable operation of electrical distribution systems.
Key Advantages
- High voltage DIN back-up fuse-link designed for transformer protection.
- 36 kV AC rated voltage.
- 40 A rated current.
- Low power dissipation design reduces fuse compartment heating.
- Integrated 80 N thermal striker.
- Suitable for air-insulated and gas-insulated switchgear.
- Pure silver fuse elements with ceramic body construction.
- Manufactured to IEC 60282-1 and VDE T402 standards.
Key Features
- Mersen Limitor®-PTS back-up fuse series.
- Catalogue number: 45DB360V40PTS.
- 36 kV AC rated voltage.
- 40 A current rating.
- 65 mm diameter × 537 mm length.
- 20 kA breaking capacity.
- 14,200 A²s total clearing I²t.
- 200 A minimum breaking current.
- 80 N thermal striker.
- Low power loss fuse design.
The Mersen L1032963 is designed to rapidly interrupt high prospective fault currents before they can damage transformers and associated switchgear. Its low power dissipation construction helps minimise heat build-up inside enclosed switchgear while maintaining dependable fault interruption throughout its operational life.
The Limitor®-PTS range combines advanced fuse technology with an integrated thermal striker, making it particularly suitable for modern utility substations, industrial power distribution systems and OEM medium voltage switchgear assemblies.
Typical Applications
- Medium voltage transformer protection.
- Air-insulated switchgear.
- Gas-insulated switchgear.
- Utility substations.
- Industrial power distribution.
- Renewable energy infrastructure.
- OEM medium voltage equipment.
