| Item condition | New |
| Manufacture name | Air fuse-link, medium voltage, 20 A, AC 12 kV, 51 x 359 mm, back-up, BS |
| Brand | EATON |
| Country of origin* | HU |
| * The actual country of origin may differ depending on the delivery batch. To confirm the specific country of origin, please contact your account manager. | |
| Harmonized System Code | 8535 1000 00 |
| Application | Primary side transformer protection |
| Voltage type | AC |
| Rated current | 20 A |
| Rated voltage | 12 kV |
| Rated frequency | 50 Hz |
| Utilization category | Other |
| Breaking capacity | 40 kA |
| Packing level 1 | 5027590431583 |
| Packing level 2 | 5027590028172 |
| Diameter | 51 mm |
| Release characteristic | Other |
| Length | 375 mm |
| Installation technique | Air |
| With striker | No |
| Standard | British Standard |
| Performance category according to IEC 60282-1 | Back-up |