Gavita EFM1 AC Fan Controller
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 and fan, and a simple signal wire is all that is needed to control it from the ELF.
Efficient control of AC fans results in low noise production
On low speed the FB1 uses 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.
|EFM1 US 120V||EFM1 US 240V||EFM1 UK||EFM1 EU|
|Control port||0-10V 4P4C RJ9|
|Plug type||NEMA 5-15||NEMA 6-15||BS 1363||CEE 7|