Speed Controllers

Fan speed controllers let you trim a ventilation system to the duty it actually needs — cutting noise and energy use on quiet days and holding full performance in reserve for peak demand. Rather than running a fan flat out and living with the noise, a speed controller matches airflow to occupancy, season or process load.

Our controller range is the S&P REB series of electronic speed controllers, stocked in seven current ratings from 1 Amp to 16 Amp: REB-1, REB-3, REB-5, REB-6, REB-8, REB-10 and REB-16.

How do I choose a speed controller?

Match the controller’s current rating to the fan: it must be rated at or above the fan’s full-load current, which you will find on the fan’s rating plate or datasheet. When in doubt, size up. Also check the fan itself is suitable for speed control — most of the AC fans we sell list their compatible control methods on the product page, and datasheets are available on each product’s Downloads tab.

Not sure which rating you need for a particular fan? Our Leicester-based team can check it for you on 0116 246 0031. Stocked items ordered by 3pm ship for next-day delivery, and orders over £400 ex VAT include free UK mainland delivery.