| Unit of measurement | TT PRO 125 U1 | ||
| Speed | - | 1 | 2 |
| Minimum supply voltage | V | 230 | |
| Maximum supply voltage | V | 230 | |
| Power supply frequency | Hz | 50/60 | |
| Rated power | W | 25 | 29 |
| Unit current | A | 0.11 | 0.13 |
| Maximum airflow | m³/h | 240 | 350 |
| Sound pressure level LpA at 3 m | dB(A) | 29 | 34 |
| Weight | kg | 2.15 | |
| Transported air temperature (max) | °С | 60 | |
| Ingress protection rating | - | IPX4 | |
| Ingress protection rating of the drive | - | IPX4 | |
| Impeller material | - | Plastic | |
| Trademark | Vents | |||||
| Model | TT PRO 125 U1 | |||||
| Specific energy consumption (SEC) (kWh/(m²/a)) | Cold | Average | Warm | |||
| -53.6 | A+ | -26.6 | B | -11.1 | E | |
| Type of ventilation unit | Unidirectional | |||||
| Type of drive installed | Variable speed | |||||
| Type of heat recovery system | None | |||||
| Maximum flow rate (m³/h) | 275 | |||||
| Electric power input (W) | 29 | |||||
| Reference flow rate (m³/s) | 0.053 | |||||
| Reference pressure difference (Pa) | 50 | |||||
| Specific power input (SPI) (W/(m³/h)) | 0.13 | |||||
| Control typology | Local demand control | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Declared typology | RVU UVU | |||||
| Sound power level (dB(A)) | 54 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 69 | 69 | 69 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 5536 | 2830 | 1280 | ||||