/ Product catalogue / Commercial and industrial ventilation / Inline fans / For round ducts / KSB K2 / KSB 250 K2| Unit of measurement | KSB 250 K2 | |
| Connected air duct size | mm | 250 |
| Phases | - | 1 |
| Minimum supply voltage | V | 230 |
| Maximum supply voltage | V | 230 |
| Power supply frequency | Hz | 50 |
| Rated power | W | 320 |
| Unit current | A | 1.4 |
| Maximum airflow | m3/h | 1515 |
| rotation speed at 50hz | - | 2615 |
| Sound pressure level LpA at 3 m | dB(A) | 45 |
| Weight | kg | 33 |
| Transported air temperature (max) | °С | 55 |
| Transported air temperature (min) | °С | -25 |
| Ingress protection rating | - | IPX4 |
| Ingress protection rating of the drive | - | IP44 |
| Trademark | Vents |
| Model | KSB 250 K2 |
| Type of drive installed | External MSD or VSD |
| Type of heat recovery system | None |
| Nominal flow rate (m3/s) | 0.251 |
| Nominal external pressure (Pa) | 463 |
| Maximum external leakage rates (%) | 2.7 |
| Static efficiency (%) | 36.6 |
| Declared typology | NRVU UVU |
| Sound power level (dB(A)) | 65 |
| Effective electric power input (kW) | 0.324 |
| ∅D | B | B1 | H | L | L1 | L2 |
|---|---|---|---|---|---|---|
| 248 | 677 | 537 | 429 | 774 | 759 | 666 |
