Why Choose the Mersen J1000117 High Voltage DIN Back-up Fuse?
The Mersen J1000117 is a high performance DIN high voltage back-up fuse designed to provide dependable short-circuit protection for medium voltage transformers and switchgear installations. Manufactured as part of the trusted Mersen Limitor®-PD series, it delivers reliable protection for critical electrical distribution systems operating at up to 36 kV AC.
Designed in accordance with IEC 60282-1 and VDE 0670 T402 standards, the J1000117 offers excellent current limiting performance while helping minimise damage caused by fault currents. Premium materials including pure silver fuse elements, silver-plated copper end caps and a robust ceramic body ensure long service life and dependable operation in demanding environments.
Rated at 50 A with an integrated 80 N thermal striker, this fuse is ideal for transformer protection within utility networks, industrial power distribution systems and medium voltage switchgear where fast and reliable fault interruption is essential.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 36 kV AC rated voltage for demanding power distribution applications.
- 50 A current rating for reliable overcurrent protection.
- Manufactured to IEC 60282-1 and VDE 0670 T402 standards.
- Integrated 80 N thermal striker for switchgear tripping mechanisms.
- High quality ceramic body with silver fuse elements for long-term reliability.
Key Features
- Mersen Limitor®-PD high voltage DIN back-up fuse.
- Catalogue number: 45DB360V50PD.
- Rated voltage: 36 kV AC.
- Rated current: 50 A.
- Fuse dimensions: 88 mm diameter × 537 mm length.
- Integrated 80 N thermal striker.
- Ceramic body with pure silver fuse elements.
- Suitable for transformer and switchgear protection.
Medium voltage back-up fuses are designed to interrupt high fault currents rapidly, protecting transformers and associated switchgear from the damaging effects of short circuits. Their current limiting characteristics reduce thermal and mechanical stresses, helping to improve equipment lifespan and network reliability.
The Mersen Limitor®-PD range has been trusted for decades by utilities, panel builders and industrial engineers requiring dependable protection for transformer installations and medium voltage electrical systems.
Typical Applications
- Medium voltage transformer protection.
- Electrical utility distribution networks.
- Industrial power distribution systems.
- Medium voltage switchgear assemblies.
- Substations and electrical infrastructure.
- OEM high voltage equipment.
