Mersen S209293 Limitor-PD high voltage DIN back-up fuse rated at 7.2 kV AC and 6.3 A, with a 63 kA breaking capacity and an 80 N striker for transformer protection.
£59.40
The Mersen S209293 is a reliable Limitor®-PD high voltage DIN back-up fuse designed to protect transformers, switchgear and medium voltage electrical systems against damaging short-circuit currents. Identified by the catalogue reference 45DB72V6,3PD, it provides dependable current-limiting protection for demanding power distribution installations.
Manufactured using a robust ceramic body, pure silver fuse elements and silver-plated copper end caps, the S209293 is engineered for consistent electrical performance and long-term reliability. As part of the Mersen Limitor®-PD range, it complies with recognised high voltage fuse standards and is suitable for coordinated operation with compatible transformer protection equipment.
Rated at 7.2 kV AC and 6.3 A, the fuse has a compact 56 mm diameter and 192 mm overall length. An integrated 80 N striker allows the fuse to operate compatible switch-disconnectors or indication mechanisms when a fault occurs.
High voltage back-up fuses interrupt substantial short-circuit currents before excessive electrical energy can damage transformers, cables or switchgear. Their current-limiting characteristics reduce peak fault current and help minimise the resulting thermal and mechanical stresses within the installation.
The Mersen S209293 is intended for use as part of a correctly coordinated transformer protection system. Its integrated striker can activate compatible switchgear or provide mechanical indication when the fuse operates, helping isolate the affected circuit and support safer maintenance.
| Manufacturer | Mersen |
|---|---|
| Series | Limitor®-PD Back-up Fuses |
| Model | S209293 |
| Catalogue number | 45DB72V6,3PD |
| Product type | High voltage DIN back-up fuse |
| Primary application | Transformer protection |
| Rated voltage | 7.2 kV AC |
| Rated current | 6.3 A |
| Rated breaking capacity | 63 kA |
| Power dissipation | 11 W |
| Fuse diameter | 56 mm |
| Fuse length | 192 mm |
| Mounting type | Clip mounting |
| Striker force | 80 N |
| Fuse body material | Ceramic |
| Fuse-element material | Pure silver |
| End-cap material | Silver-plated copper |
| Standards | IEC 60282-1, VDE 0670 T402 |
| HS Code | 85351000 |
| Country of Manufacture | Hungary |
The S209293 is a high voltage DIN back-up fuse designed to protect compatible transformers and switchgear against damaging short-circuit currents.
The fuse has a rated operating voltage of 7.2 kV AC.
The Mersen S209293 has a rated current of 6.3 A.
The fuse has a rated breaking capacity of 63 kA, enabling it to interrupt substantial high voltage fault currents.
Yes. It incorporates an integrated 80 N striker for operation with compatible switch-disconnectors and indication equipment.
Mersen Limitor® high voltage fuse-links are used by electrical utilities, switchgear manufacturers and industrial engineers to provide dependable transformer protection and reliable fault interruption in medium voltage power distribution systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...