Why Choose the Mersen S1006105 High Voltage DIN Back-up Fuse?
The Mersen S1006105 is a high performance Limitor®-P high voltage DIN back-up fuse designed to protect transformers against the damaging effects of short-circuit currents. Identified by the catalogue number 45DB120V160P-3, it is suitable for use in high voltage switchgear, controlgear and electrical power distribution systems.
As a back-up fuse defined in accordance with IEC 60282-1, the S1006105 operates above its specified minimum breaking current and provides rapid fault interruption with effective current limitation. This helps reduce the thermal and mechanical stress placed on transformers and associated switchgear during severe electrical faults.
With a rated voltage of 12 kV AC and a rated current of 160 A, this fuse features an 88 mm diameter, a 442 mm overall length and an integrated 80 N striker. Its robust ceramic body, pure silver fuse elements and silver-plated copper end caps support dependable performance in demanding indoor and outdoor installations.
Key Advantages
- Reliable high voltage transformer short-circuit protection.
- 12 kV AC rated voltage for medium voltage power systems.
- 160 A rated current for compatible transformer installations.
- High current-limiting performance helps reduce fault energy.
- Integrated 80 N striker for compatible switchgear operation.
- Suitable for both indoor and outdoor electrical installations.
Key Features
- Mersen Limitor®-P series.
- High voltage DIN back-up fuse for transformer protection.
- 12 kV AC IEC rated voltage.
- 160 A rated current.
- 88 mm fuse diameter.
- 442 mm overall fuse length.
- Standard medium striker rated at 80 N.
- High breaking capability and rapid fault interruption.
- Low switching voltage during fuse operation.
- Clip-mounted cylindrical DIN fuse-link construction.
High voltage back-up fuses interrupt substantial short-circuit currents before excessive fault energy can cause serious damage to transformers, cables and switchgear. Their current-limiting action helps reduce peak current and the associated thermal and mechanical forces within the electrical installation.
The Mersen S1006105 is designed for coordinated use with correctly selected high voltage equipment. Its integrated striker can activate compatible switch-disconnectors or provide mechanical indication when the fuse operates, helping isolate the affected circuit and improve system safety.
Typical Applications
- High voltage transformer protection.
- Medium voltage distribution switchgear.
- Transformer substations.
- Industrial power distribution systems.
- Utility and infrastructure electrical networks.
- Indoor and outdoor high voltage installations.
