/ Product catalogue / Commercial and industrial ventilation / Axial fans / Inline / VKF / VKF 4E 300| Unit of measurement | VKF 4E 300 | |
| Connected air duct size | mm | 300 |
| Minimum supply voltage | V | 220 |
| Maximum supply voltage | V | 240 |
| Power supply frequency | Hz | 50/60 |
| Rated power | W | 75 |
| Unit current | A | 0.35 |
| Maximum airflow | m3/h | 1340 |
| Sound pressure level LpA at 3 m | dB(A) | 44 |
| Weight | kg | 6.2 |
| Transported air temperature (max) | °С | 60 |
| Transported air temperature (min) | °С | -30 |
| Ingress protection rating | - | IPX4 |
| Trademark | Vents | |||||
| Model | VKF 4E 300 | |||||
| Specific energy consumption (SEC) (kWh/(m2/a)) | Cold | Average | Warm | |||
| 53.5 | A+ | 26.5 | B | 11 | E | |
| Type of ventilation unit | Unidirectional | |||||
| Type of drive installed | Variable speed | |||||
| Type of heat recovery system | None | |||||
| Maximum flow rate (m3/h) | 430 | |||||
| Electric power input (W) | 75 | |||||
| Reference flow rate (m3/s) | 0.084 | |||||
| Reference pressure difference (Pa) | 50 | |||||
| Specific power input (SPI) (W/(m3/h)) | 0.137 | |||||
| Control typology | Local demand control | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Declared typology | RVU UVU | |||||
| Sound power level (dB(A)) | 58 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 73 | 73 | 73 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 5536 | 2830 | 1280 | ||||
| ∅D | ∅D1 | ∅D2 | ∅d | B | L |
|---|---|---|---|---|---|
| 310 | 356 | 382 | 7 | 410 | 160 |
