Why Choose the Mersen P1006125 Limitor®-PT High Voltage Transformer Fuse?
The Mersen P1006125, catalogue number 45DB175V63PT, is a premium DIN high voltage back-up fuse designed specifically for protecting medium-voltage transformers against damaging short-circuit currents. As part of the proven Mersen Limitor®-PT range, it features controlled power dissipation (CPD) and complies with IEC 60282-1, making it ideal for enclosed switchgear and demanding industrial power distribution applications.
Constructed using pure silver fuse elements, silver-plated copper terminals and a high-strength ceramic body, the P1006125 delivers excellent electrical performance, reliable current limitation and long service life. The integrated 80 N striker enables dependable operation of compatible switchgear trip mechanisms and provides clear fuse operation indication.
Rated at 17.5 kV AC and 63 A, the Mersen P1006125 features a 56 mm diameter × 367 mm DIN fuse size. It is ideally suited to transformer protection within substations, utilities, industrial facilities and OEM medium-voltage switchgear assemblies.
Key Advantages
- Designed specifically for medium-voltage transformer protection.
- 17.5 kV AC rated voltage for IEC high-voltage systems.
- 63 A current rating.
- Controlled power dissipation supports enclosed switchgear installations.
- Integrated 80 N striker for switchgear tripping and indication.
- 63 kA breaking capacity for dependable fault interruption.
Key Features
- Mersen Limitor®-PT back-up fuse.
- Catalogue number: 45DB175V63PT.
- Item number: P1006125.
- 17.5 kV AC IEC rated voltage.
- 63 A rated current.
- 56 mm diameter × 367 mm DIN fuse size.
- Integrated 80 N striker.
- Controlled power dissipation (CPD).
- Pure silver fuse elements.
- Ceramic insulating body with silver-plated copper terminals.
Medium-voltage transformers require specialised protection capable of interrupting high fault currents before excessive thermal or mechanical damage occurs. The Mersen P1006125 provides rapid current limitation and dependable transformer protection while its controlled power dissipation design makes it especially suitable for enclosed switchgear installations.
Its integrated striker automatically operates compatible switchgear trip mechanisms or signalling devices following fuse operation, improving personnel safety and simplifying maintenance. Premium construction materials ensure reliable long-term performance in demanding industrial and utility environments.
Typical Applications
- Medium-voltage transformer protection.
- High-voltage switchgear.
- Electrical substations.
- Industrial power distribution systems.
- Utility transformer installations.
- OEM medium-voltage electrical equipment.
