/ Product catalogue / Commercial and industrial ventilation / Inline fans / For round ducts / VK Duo / VK 125 Duo
| Unit of measurement | VK 125 Duo | ||
| Speed | - | 1 | 2 |
| Connected air duct size | mm | 125 | |
| Phases | - | 1 | |
| Minimum supply voltage | V | 230 | |
| Maximum supply voltage | V | 230 | |
| Power supply frequency | Hz | 50 | |
| Rated power | W | 45 | 58 |
| Unit current | A | 0.21 | 0.26 |
| Maximum airflow | m³/h | 191 | 329 |
| Rotation speed at 50hz | - | 1810 | 2380 |
| Sound pressure level LpA at 3 m | dB(A) | 30 | 39 |
| Weight | kg | 2.2 | |
| Transported air temperature (max) | °С | 55 | |
| Transported air temperature (min) | °С | -25 | |
| Ingress protection rating | - | IPX4 | |
| Impeller material | - | Plastic | |
| Trademark | Vents | |||||
| Model | VK 125 Duo | |||||
| Specific energy consumption (SEC) (kWh/(m²/a)) | Cold | Average | Warm | |||
| -50 | A+ | -23 | D | -7.5 | F | |
| Type of ventilation unit | Unidirectional | |||||
| Type of drive installed | 2-speed | |||||
| Type of heat recovery system | None | |||||
| Maximum flow rate (m³/h) | 230 | |||||
| Electric power input (W) | 56.3 | |||||
| Reference flow rate (m³/s) | 0.045 | |||||
| Reference pressure difference (Pa) | 50 | |||||
| Specific power input (SPI) (W/(m³/h)) | 0.284 | |||||
| Control typology | Local demand control | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Declared typology | RVU UVU | |||||
| Sound power level (dB(A)) | 59 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 213 | 213 | 213 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 5536 | 2830 | 1280 | ||||
| ØD | ØD1 | B | L | L1 | L2 | L3 |
|---|---|---|---|---|---|---|
| 125 | 250 | 270 | 220 | 30 | 27 | 30 |
