/ Product catalogue / Commercial and industrial ventilation / Roof fans / Centrifugal / VKMK / VKMK 250
| Unit of measurement | VKMK 250 | |
| Connected air duct size | mm | 250 |
| Minimum supply voltage | V | 220 |
| Maximum supply voltage | V | 240 |
| Power supply frequency | Hz | 50/60 |
| Rated power | W | 194 |
| Unit current | A | 0.85 |
| Maximum airflow | m3/h | 1310 |
| Sound pressure level LpA at 3 m | dB(A) | 52 |
| Weight | kg | 10.1 |
| Transported air temperature (max) | °С | 50 |
| Transported air temperature (min) | °С | -25 |
| Ingress protection rating | - | IPX4 |
| Ingress protection rating of the drive | - | IP44 |
| Trademark | Vents |
| Model | VKMK 250 |
| Type of drive installed | External MSD or VSD |
| Type of heat recovery system | None |
| Nominal flow rate (m3/s) | 0.174 |
| Nominal external pressure (Pa) | 331 |
| Maximum external leakage rates (%) | 2.7 |
| Static efficiency (%) | 32.2 |
| Declared typology | NRVU UVU |
| Sound power level (dB(A)) | 72 |
| Effective electric power input (kW) | 0.182 |
| ∅D | ∅D1 | H | L | L1 |
|---|---|---|---|---|
| 248 | 400 | 249 | 590 | 450 |
