Gavita EFM1 AC fan Control Module

For those who do not (yet) want to move to EC fans, we have an intelligent AC fan control module for the ELF controllers, that will control your current AC fans as efficient and quiet as possible. On low speed we use burst modulated AC control to reduce losses and reduce hum in the fan motor, on higher speed settings the controller switches to phase cut control, which is more efficient in those stages. The EFM can be plugged in between your power outlet an..

£186.95