Why Choose the Mersen Q1000261 High Voltage Transformer Protection Fuse?
The Mersen Q1000261 is a high performance DIN high voltage back-up fuse-link engineered to provide dependable transformer protection in medium voltage electrical distribution systems. Manufactured as part of the proven Mersen Limitor®-PD series, it is specifically designed to protect transformers against damaging short-circuit currents whilst maintaining reliable operation in industrial and utility applications.
Built using pure silver fuse elements, silver-plated copper end caps and a robust ceramic body, the Q1000261 delivers excellent electrical performance, high breaking capacity and long operational life. The fuse complies with IEC 60282-1 and VDE 0670 T402 standards for high voltage transformer protection.
Rated at 24 kV AC with an 80 A current rating, this fuse incorporates an integrated 80 N striker for indication and operation of compatible switching mechanisms. The 65 mm diameter and 442 mm fuse body make it suitable for compatible DIN medium voltage switchgear and transformer installations.
Key Advantages
- Purpose-designed high voltage transformer protection fuse.
- 24 kV AC rated voltage.
- 80 A continuous current rating.
- Current-limiting design reduces fault energy.
- Integrated 80 N striker for fault indication.
- High 63 kA breaking capacity.
- Manufactured using premium ceramic and pure silver fuse elements.
- Complies with IEC 60282-1 and VDE 0670 T402.
Key Features
- Mersen Limitor®-PD high voltage DIN back-up fuse.
- Catalogue number: 45DB240V80PD.
- Rated voltage: 24 kV AC.
- Rated current: 80 A.
- Breaking capacity: 63 kA.
- Fuse diameter: 65 mm.
- Fuse body length: 442 mm.
- Integrated 80 N striker.
- DIN VDE T402 construction.
- RoHS compliant.
High voltage back-up fuse-links rapidly interrupt severe short-circuit currents before they can damage transformers and associated switchgear. Their current-limiting characteristics reduce thermal and mechanical stress whilst improving the overall reliability of medium voltage distribution systems.
The Mersen Q1000261 combines dependable fault interruption with an integrated striker that can activate compatible indication or switching mechanisms, helping engineers quickly identify and isolate faulted circuits.
Typical Applications
- Medium voltage transformer protection.
- Electrical substations.
- Industrial switchgear.
- Utility power distribution.
- Renewable energy installations.
- Ring main units.
- OEM medium voltage equipment.
- Industrial electrical networks.
