/ Product catalogue / Commercial and industrial ventilation / Inline fans / For rectangular ducts / Box-FI / Box-FI 500x250 4D
| Unit of measurement | Box-FI 500x250 4D | |
| Connected air duct size | mm | 500x250 |
| Minimum supply voltage | V | 400 |
| Maximum supply voltage | V | 400 |
| Power supply frequency | Hz | 50 |
| Rated power | W | 570 |
| Unit current | A | 0.94 |
| Maximum airflow | m3/h | 1850 |
| Sound pressure level LpA at 3 m | dB(A) | 44 |
| Weight | kg | 40.5 |
| Transported air temperature (max) | °С | 40 |
| Transported air temperature (min) | °С | -20 |
| Ingress protection rating | - | IPX4 |
| Ingress protection rating of the drive | - | IP44 |
| B | B1 | B2 | B3 | H | H1 | H2 | H3 | L |
|---|---|---|---|---|---|---|---|---|
| 500 | 520 | 540 | 570 | 250 | 270 | 290 | 410 | 640 |
