/ Product catalogue / Commercial and industrial ventilation / Inline fans / For round ducts / KSB K2 / KSB 125 K2 S| Unit of measurement | KSB 125 K2 S | |
| 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 | 88 |
| Unit current | A | 0.37 |
| Maximum airflow | m³/h | 484 |
| Rotation speed at 50hz | - | 2670 |
| Sound pressure level LpA at 3 m | dB(A) | 40 |
| Weight | kg | 19 |
| Transported air temperature (max) | °С | 55 |
| Transported air temperature (min) | °С | -25 |
| Ingress protection rating | - | IPX4 |
| Ingress protection rating of the drive | - | IP44 |
| Impeller material | - | Plastic |
| Trademark | Vents | |||||
| Model | KSB 125 K2 S | |||||
| Specific energy consumption (SEC) (kWh/(m²/a)) | Cold | Average | Warm | |||
| -51.4 | A+ | -24.4 | C | -8.9 | F | |
| Type of ventilation unit | Unidirectional | |||||
| Type of drive installed | Variable speed | |||||
| Type of heat recovery system | None | |||||
| Maximum flow rate (m³/h) | 420 | |||||
| Electric power input (W) | 88 | |||||
| Reference flow rate (m³/s) | 0.082 | |||||
| Reference pressure difference (Pa) | 50 | |||||
| Specific power input (SPI) (W/(m³/h)) | 0.296 | |||||
| Control typology | Local demand control | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Declared typology | RVU UVU | |||||
| Sound power level (dB(A)) | 60 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 157 | 157 | 157 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 5536 | 2830 | 1280 | ||||
| ∅D | B | B1 | H | L | L1 | L2 |
|---|---|---|---|---|---|---|
| 124 | 533 | 333 | 280 | 630 | 617 | 525 |
| Name | Photo | Description |
|---|---|---|
| Vents SR 125/600 |
|
Silencers made of galvanized steel filled with non-combustible sound-absorbing material |
| Vents SR 125/900 |
|
Silencers made of galvanized steel filled with non-combustible sound-absorbing material |
| Vents SR 125/1200 |
|
Silencers made of galvanized steel filled with non-combustible sound-absorbing material |
| Name | Photo | Description |
|---|---|---|
| Vents FB 125 |
|
Round panel air filters |
| Vents FBK 125-4 |
|
Round bag air filters |
| Vents FBK 125-5 |
|
Round bag air filters |
| Vents FBK 125-7 |
|
Round bag air filters |
| Name | Photo | Description |
|---|---|---|
| Vents KOM 125 |
|
Backdraught damper with spring-loaded plates for shutting off air flow in round air ducts |
| Vents KR 125 |
|
Air dampers for controlling air flow in round air ducts |
| Name | Photo | Description |
|---|---|---|
| Vents NKV 125-2 |
|
Inline water supply air heaters or heater for air handling units with a round cross-section |
| Vents NKV 125-4 |
|
Inline water supply air heaters or heater for air handling units with a round cross-section |
| Name | Photo | Description |
|---|---|---|
| Vents NK 125-0,6-1 |
|
Round electric inline heaters with round cross-section |
| Vents NK 125-0,8-1 |
|
Round electric inline heaters with round cross-section |
| Vents NK 125-1,2-1 |
|
Round electric inline heaters with round cross-section |
| Vents NK 125-1,6-1 |
|
Round electric inline heaters with round cross-section |
| Vents NK 125-2,4-1 |
|
Round electric inline heaters with round cross-section |
| Name | Photo | Description |
|---|---|---|
| Vents RSA5E-3,5-T |
|
Speed controllers are applied for air flow control of single phase fans by means of motor step speed control |
| Vents RSA5E-5,0-T |
|
Speed controllers are applied for air flow control of single phase fans by means of motor step speed control |
| Vents RSA5E-7,5-T |
|
Speed controllers are applied for air flow control of single phase fans by means of motor step speed control |
