Why Choose the Mersen Y1000107 High-Voltage Transformer Fuse?
The Mersen Y1000107, catalogue reference 45DB120V160P, is a high-voltage DIN back-up fuse-link designed to protect distribution transformers against damaging short-circuit currents. As part of the established Mersen Limitor®-P series, it provides dependable protection for high-voltage switchgear, controlgear and electrical distribution systems.
Rated at 12 kV AC and 160 A, the Y1000107 offers rapid current-limiting operation during severe electrical faults. Its high breaking capacity helps interrupt substantial short-circuit currents before they reach their maximum prospective peak, reducing thermal, electrical and mechanical stress on transformers and associated equipment.
The fuse-link features pure silver fuse elements, silver-plated copper terminals and a robust ceramic body. Its VDE T4 DIN format has a nominal fuse size of 88 mm diameter × 292 mm length, while the integrated 80 N striker can operate compatible switchgear mechanisms or provide indication after the fuse has operated.
Key Advantages
- Reliable high-voltage transformer short-circuit protection.
- 12 kV AC voltage rating for high-voltage distribution systems.
- 160 A rated current for suitable transformer applications.
- High 63 kA breaking capacity for demanding fault conditions.
- Current-limiting operation helps reduce peak fault-current stresses.
- Integrated 80 N striker for switchgear operation or indication.
Key Features
- Mersen Limitor®-P DIN back-up fuse-link.
- Catalogue number: 45DB120V160P.
- Rated voltage: 12 kV AC.
- Rated current: 160 A.
- Breaking capacity: 63 kA.
- Minimum interrupting rating: 560 A.
- Nominal fuse size: 88 mm diameter × 292 mm length.
- Standard striker: 80 N.
- Pure silver fuse elements and silver-plated copper terminals.
- Clip-mounted VDE T4 format for compatible high-voltage installations.
Back-up fuse-links such as the Mersen Y1000107 are designed to interrupt substantial short-circuit currents above their specified minimum interrupting level. They are commonly coordinated with suitable switching devices or additional protective equipment to provide effective transformer protection across the required fault-current range.
During a severe fault, the fuse elements operate rapidly and interrupt the current within the ceramic fuse body. This current-limiting action reduces the electrical energy passed into the protected installation, helping minimise damage to transformers, conductors, cables and high-voltage switchgear.
Typical Applications
- High-voltage distribution transformer protection.
- HV/LV transformer installations.
- Electrical substations and utility networks.
- High-voltage switchgear and controlgear.
- Industrial electrical distribution systems.
- Transformer panels and fused switch combinations.
