Why Choose the Mersen X1000106 Limitor®-P High Voltage Back-up Fuse?
The Mersen X1000106 is a high performance Limitor®-P DIN high voltage back-up fuse-link designed to protect medium voltage transformers against the damaging effects of short-circuit currents. Built for use in high voltage switchgear, controlgear and electrical distribution systems, it provides dependable fault interruption in demanding industrial and utility applications.
Manufactured in accordance with IEC 60282-1 and featuring a VDE T4 design, the X1000106 combines pure silver fuse elements, silver-plated copper terminals and a robust ceramic body. This premium construction supports consistent electrical performance, reliable operation and a long service life in medium voltage installations.
With a rated voltage of 12 kV AC, a rated current of 125 A and a fuse size of 88 mm diameter × 292 mm, the X1000106 is suitable for transformer primary protection in substations, industrial power systems and medium voltage switchgear. Its integrated 80 N striker provides reliable indication and operation with compatible switchgear mechanisms.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 12 kV AC voltage rating for industrial and utility systems.
- 125 A rated current for higher-capacity transformer circuits.
- 63 kA breaking capacity for dependable short-circuit interruption.
- Integrated 80 N striker for compatible switchgear operation.
- Pure silver fuse elements and ceramic construction for reliable long-term performance.
Key Features
- Mersen Limitor®-P back-up fuse-link.
- Catalogue number: 45DB120V125P.
- Rated voltage: 12 kV AC.
- Rated current: 125 A.
- Breaking capacity: 63 kA.
- Fuse size: 88 mm diameter × 292 mm.
- Standard 80 N striker mechanism.
- Clip-mounted DIN high voltage fuse construction.
High voltage back-up fuse-links interrupt significant short-circuit currents before they can cause serious thermal or mechanical damage to transformers and associated switchgear. This helps improve installation safety, reduce equipment damage and minimise costly electrical downtime.
The Mersen Limitor®-P range has been used for transformer protection in high voltage systems for decades. The X1000106 combines a high interrupting capacity, durable construction and dependable striker indication, making it suitable for both new electrical installations and maintenance replacement projects.
Typical Applications
- Medium voltage transformer primary protection.
- Industrial substations and distribution systems.
- High voltage switchgear and controlgear.
- Utility power distribution networks.
- Commercial and industrial electrical infrastructure.
- Transformer maintenance and replacement projects.
