Why Choose the Mersen X1018322 Limitor®-PTS High Voltage Back-up Fuse?
The Mersen X1018322 is a high performance Limitor®-PTS DIN high voltage back-up fuse-link designed to protect medium voltage transformers against the thermal and dynamic effects of short-circuit currents. Manufactured to IEC high voltage fuse requirements with a VDE T402 design, it delivers dependable fault interruption for demanding electrical distribution systems.
As part of the advanced Mersen Limitor®-PTS range, the X1018322 incorporates low power loss fuse-element technology and an integrated thermal striker. These features help reduce heat generation during normal operation and protect the fuse compartment against overheating, making the fuse particularly suitable for modern air insulated and gas insulated switchgear.
Rated at 24 kV AC with a 50 A current rating, the X1018322 has a 65 mm diameter × 442 mm fuse size and a maximum breaking capacity of 65 kA. Its pure silver fuse elements, silver-plated copper terminals and ceramic body provide consistent electrical performance and long service life.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Low power loss technology helps reduce heat within enclosed switchgear.
- 24 kV AC voltage rating for medium voltage distribution systems.
- 50 A rated current for transformer primary protection.
- 65 kA breaking capacity for dependable short-circuit interruption.
- Integrated 80 N thermal striker for compatible switchgear operation.
Key Features
- Mersen Limitor®-PTS back-up fuse-link.
- Catalogue number: 45DB240V50PTS.
- Rated voltage: 24 kV AC.
- Rated current: 50 A.
- Breaking capacity: 65 kA.
- Fuse size: 65 mm diameter × 442 mm length.
- 80 N thermal striker indication system.
- Suitable for air insulated and gas insulated switchgear.
High voltage back-up fuse-links interrupt substantial short-circuit currents before transformers and associated switchgear are exposed to damaging thermal and mechanical stresses. This helps improve installation safety, reduce equipment damage and minimise costly electrical downtime.
The Mersen Limitor®-PTS range combines reduced power losses with a thermal striker designed to prevent overheating within the fuse compartment. The X1018322 is suitable for transformer protection in both air insulated and gas insulated switchgear used throughout industrial and utility power distribution systems.
Typical Applications
- Medium voltage transformer primary protection.
- Gas insulated switchgear.
- Air insulated switchgear.
- Industrial substations and distribution networks.
- Utility power distribution systems.
- Commercial and industrial electrical infrastructure.
