/ Product catalogue / Commercial and industrial ventilation / Inline fans / For round ducts / KSB K2 / KSB 125 K2
| Unit of measurement | KSB 125 K2 | |
| 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 | 61 |
| Unit current | A | 0.28 |
| Maximum airflow | m3/h | 330 |
| rotation speed at 50hz | - | 2560 |
| Sound pressure level LpA at 3 m | dB(A) | 35 |
| Weight | kg | 13 |
| 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 125 K2 | |||||
| Specific energy consumption (SEC) (kWh/(m2/a)) | Cold | Average | Warm | |||
| 51.4 | A+ | 24.3 | C | 8.8 | F | |
| Type of ventilation unit | Unidirectional | |||||
| Type of drive installed | Variable speed | |||||
| Type of heat recovery system | None | |||||
| Maximum flow rate (m3/h) | 280 | |||||
| Electric power input (W) | 60.7 | |||||
| Reference flow rate (m3/s) | 0.054 | |||||
| Reference pressure difference (Pa) | 50 | |||||
| Specific power input (SPI) (W/(m3/h)) | 0.301 | |||||
| Control typology | Local demand control | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Declared typology | RVU UVU | |||||
| Sound power level (dB(A)) | 55 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 159 | 159 | 159 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 5536 | 2830 | 1280 | ||||
| ∅D | B | B1 | H | L | L1 | L2 |
|---|---|---|---|---|---|---|
| 124 | 420 | 228 | 258 | 517 | 507 | 414 |
