/ Product catalogue / Commercial and industrial ventilation / Inline fans / For round ducts / KSB K2 / KSB 400 K2
| Unit of measurement | KSB 400 K2 | ||
| Connected air duct size | mm | 400 | |
| Phases | - | 1 | |
| Minimum supply voltage | V | 230 | |
| Maximum supply voltage | V | 230 | |
| Power supply frequency | Hz | 50 | 60 |
| Rated power | W | 427 | |
| Unit current | A | 1.87 | |
| Maximum airflow | m3/h | 3800 | |
| rotation speed at 50hz | - | 1451 | |
| Sound pressure level LpA at 3 m | dB(A) | 49 | |
| Weight | kg | 78.5 | |
| Transported air temperature (max) | °С | 55 | |
| Transported air temperature (min) | °С | -25 | |
| Ingress protection rating | - | IPX4 | |
| Ingress protection rating of the drive | - | IP54 | |
| Trademark | Vents |
| Model | KSB 400 K2 |
| Type of drive installed | External MSD or VSD |
| Type of heat recovery system | None |
| Nominal flow rate (m3/s) | 0.503 |
| Nominal external pressure (Pa) | 436 |
| Maximum external leakage rates (%) | 2.7 |
| Static efficiency (%) | 56.3 |
| Declared typology | NRVU UVU |
| Sound power level (dB(A)) | 68 |
| Effective electric power input (kW) | 0.398 |
| ∅D | B | B1 | H | L | L1 | L2 |
|---|---|---|---|---|---|---|
| 399 | 927 | 737 | 578 | 1024 | 957 | 876 |
