Why Choose the Mersen S1006128 High Voltage DIN Back-up Fuse?
The Mersen S1006128 is a high performance Limitor®-PT high voltage DIN back-up fuse designed to protect transformers against the damaging effects of short-circuit currents. Identified by the catalogue number 45DB175V100PT, it is engineered for dependable operation in high voltage switchgear, controlgear and power distribution systems.
As a back-up fuse manufactured in accordance with IEC 60282-1, the S1006128 provides rapid fault interruption and effective current limitation when fault currents exceed its minimum breaking capacity. This helps reduce the thermal and mechanical stresses imposed on transformers, cables and associated switchgear during severe electrical faults.
Rated at 17.5 kV AC and 100 A, this Limitor®-PT fuse has an 88 mm diameter, a 367 mm fuse size and an integrated 80 N controlled power dissipation striker. Its ceramic body, pure silver fuse elements and silver-plated copper terminals provide reliable performance in demanding indoor and outdoor installations.
Key Advantages
- Reliable high voltage transformer short-circuit protection.
- 17.5 kV AC rated voltage for medium voltage distribution systems.
- 100 A rated current for compatible transformer installations.
- High breaking capacity supports dependable interruption of severe fault currents.
- Controlled power dissipation helps prevent unnecessary striker operation from prolonged overload conditions.
- Integrated 80 N striker for coordinated switchgear operation.
Key Features
- Mersen Limitor®-PT series with controlled power dissipation.
- High voltage DIN back-up fuse for transformer protection.
- 17.5 kV AC IEC rated voltage.
- 100 A rated current.
- 63 kA maximum AC breaking capacity.
- 88 mm diameter and 367 mm fuse size.
- Medium striker rated at 80 N with 30 mm travel.
- Clip-mounted cylindrical fuse-link construction.
- Suitable for indoor and outdoor high voltage installations.
- RoHS-compliant design.
High voltage back-up fuses interrupt substantial short-circuit currents before excessive fault energy can cause serious damage to transformers and distribution equipment. Their current-limiting action reduces the peak current, thermal energy and mechanical forces generated within the electrical installation.
The Mersen S1006128 also incorporates a controlled power dissipation striker system. This enables coordinated operation with compatible switchgear while reducing the likelihood of unwanted striker activation during prolonged operating conditions below the fuse’s minimum interrupting current.
Typical Applications
- High voltage transformer protection.
- Medium voltage distribution switchgear.
- Transformer substations.
- Industrial electrical distribution systems.
- Utility and infrastructure power networks.
- Indoor and outdoor high voltage installations.
