/ Product catalogue / Commercial and industrial ventilation / Roof exhaust fans / Centrifugal / VKHC / VKHC 4E 280
| Unit of measurement | VKHC 4E 280 | ||
| Phases | - | 1 | |
| Minimum supply voltage | V | 230 | |
| Maximum supply voltage | V | 230 | |
| Power supply frequency | Hz | 50 | 60 |
| Rated power | W | 125 | |
| Unit current | A | 0.61 | |
| Maximum airflow | m³/h | 1500 | |
| Rotation speed at 50hz | - | 1446 | |
| Sound pressure level LpA at 3 m | dB(A) | 46 | |
| Weight | kg | 10 | |
| Transported air temperature (max) | °С | 50 | |
| Transported air temperature (min) | °С | -25 | |
| Ingress protection rating | - | IPX4 | |
| Ingress protection rating of the drive | - | IP44 | |
| Size | mm | 280 | |
| Trademark | Vents |
| Model | VKHC 4E 280 |
| Type of drive installed | Integrated VSD |
| Type of heat recovery system | None |
| Nominal external pressure (Pa) | 147 |
| Maximum external leakage rates (%) | 2.7 |
| Static efficiency (%) | 34.7 |
| Declared typology | NRVU UVU |
| Effective electric power input (kW) | 0.125 |
| Sound power level (dB(A)) | 65 |
| H | ∅D | ∅D1 | L | L1 |
|---|---|---|---|---|
| 255 | 623 | 285 | 420 | 330 |
| Name | Photo | Description |
|---|---|---|
| Vents RS-3,0-T |
|
Applied in ventilation systems for speed switching ON/OFF and speed control of single-phase power-controlled motors |
| Vents RS-5,0-T |
|
Applied in ventilation systems for speed switching ON/OFF and speed control of single-phase power-controlled motors |
| Vents RS-10,0-T |
|
Applied in ventilation systems for speed switching ON/OFF and speed control of single-phase power-controlled motors |
| 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 |
| Vents RSA5D-1,5-M |
|
Three phase speed controller |
| Vents RSA5D-6,0-M |
|
Three phase speed controller |
| Vents RSA5D-8,0-M |
|
Three phase speed controller |
| Vents RSA5D-11,0-M |
|
Three phase speed controller |
| Vents RSA5E-1,5-T |
|
Speed controllers are applied for air flow control of single phase fans by means of motor step speed control |
| Name | Photo | Description |
|---|---|---|
| Vents RKV 250-315 |
|
Mounting frame |
| Vents RKVI 250-315 |
|
Mounting frame with thermal-insulating layer |
| Vents FKV 250-315 |
|
Mating flange |
| Vents GKV 250-315 |
|
Flexible connector |
| Vents KKV 250-315 |
|
Backdraft damper |
