Why Choose the Mersen N1000236 High Voltage Transformer Protection Fuse?
The Mersen N1000236 is a high voltage DIN back-up fuse-link designed to protect transformers and associated medium voltage equipment against damaging short-circuit currents. Part of the established Mersen Limitor®-PD series, it provides reliable current-limiting protection for high voltage switchgear, controlgear and electrical distribution systems.
This fuse-link is manufactured using pure silver fuse elements, silver-plated copper terminals and a robust ceramic body. These high-quality materials help provide dependable electrical conductivity, effective fault interruption and long service life in demanding industrial and utility installations.
Rated at 7.2 kV AC and 80 A, the Mersen N1000236 offers a maximum breaking capacity of 63 kA. Its integrated 80 N striker can provide fault indication or operate compatible switchgear after the fuse-link functions, supporting safe and coordinated transformer protection.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 7.2 kV AC rated voltage for high voltage distribution systems.
- 80 A current rating for compatible transformer circuits.
- High 63 kA breaking capacity for dependable fault interruption.
- Integrated 80 N striker for switchgear operation and fault indication.
- Pure silver fuse elements provide consistent electrical performance.
- Silver-plated copper terminals support efficient current transfer.
- Durable ceramic body withstands demanding operating environments.
Key Features
- Mersen Limitor®-PD high voltage DIN back-up fuse-link.
- Catalogue number: 45DB72V80PD.
- Rated voltage: 7.2 kV AC.
- Rated current: 80 A.
- Fuse size: 65 mm diameter × 192 mm fuse body length.
- Overall product length: 258 mm.
- Clip-mounted cylindrical terminals.
- Integrated 80 N striker indication system.
- VDE T402 back-up fuse design.
- Compliant with IEC 60282-1 requirements.
High voltage back-up fuse-links protect transformers by rapidly interrupting significant short-circuit currents before excessive thermal or mechanical stress can damage transformer windings, switchgear or connected distribution equipment. Their current-limiting performance also helps reduce the peak energy passed into a fault.
The Mersen N1000236 is designed to tolerate normal transformer operating conditions while responding effectively to severe fault currents. Its integrated striker supports coordinated operation with compatible switchgear, helping isolate the affected circuit and provide clear fault indication.
Typical Applications
- Medium voltage transformer protection.
- High voltage switchgear assemblies.
- Transformer substations.
- Ring main units.
- Industrial power distribution systems.
- Utility distribution equipment.
- Compact secondary substations.
- OEM transformer controlgear.
