The Knut Bø RVS is a five-step transformer-type rotational speed controller for wall mounting, used to regulate single-phase AC extract and supply fans. Discrete voltage taps step the fan motor between five preset speeds for balancing airflow to demand. The unit is suited to roof-mounted, wall-mounted, pipe-mounted and dwelling ventilation fans.
| Manufacturer part number (MPN) | RVS |
| EAN / GTIN | 8016510012428 |
| Sales unit | pcs |
| Accessory | Yes |
| Spare part | No |
| Suitable for roof fan | Yes |
| Suitable for wall-mounted fan | Yes |
| Suitable for box fan | No |
| Suitable for circulation fan | No |
| Suitable for pipe-mounted fan | Yes |
| Suitable for house fan | Yes |
| Type of electrical accessory/spare part | Rotational speed controller |
| Country of origin | Italy |
| MOQ | 1 |