/ Product catalogue / Commercial and industrial ventilation / Axial fans / Inline / VKF / VKF 4E 550| Unit of measurement | VKF 4E 550 | |
| Connected air duct size | mm | 550 |
| Minimum supply voltage | V | 220 |
| Maximum supply voltage | V | 240 |
| Power supply frequency | Hz | 50/60 |
| Rated power | W | 550 |
| Unit current | A | 2.55 |
| Maximum airflow | m3/h | 8800 |
| Sound pressure level LpA at 3 m | dB(A) | 62 |
| Weight | kg | 13.9 |
| Transported air temperature (max) | °С | 60 |
| Transported air temperature (min) | °С | -30 |
| Ingress protection rating | - | IPX4 |
| Trademark | Vents |
| Model | VKF 4E 550 |
| Type of drive installed | External MSD or VSD |
| Type of heat recovery system | None |
| Nominal flow rate (m3/s) | 1.644 |
| Nominal external pressure (Pa) | 120 |
| Maximum external leakage rates (%) | 2.7 |
| Static efficiency (%) | 34.7 |
| Declared typology | NRVU UVU |
| Effective electric power input (kW) | 0.581 |
| Sound power level (dB(A)) | 90 |
| ∅D | ∅D1 | ∅D2 | ∅d | B | L |
|---|---|---|---|---|---|
| 565 | 605 | 636 | 11.5 | 660 | 230 |
