Can a Shelly Dimmer 2 be used with an inline extractor fan for variable speed?

  • I have a use case that requires hot air to be extracted from a space using an inline extractor fan. I have not selected the fan yet so don't know the exact power specifications for it. However, it will be a 150mm (6'') unit that can move up to ~400 CFM and can operate at variable speeds.

    My aim is to be able to control the fan on/off state, as well as variable speed settings, based on the temperature in the space. Ideally this would make use of the Shelly H/T sensor to first measure the temperature and then control the fan. I know that I can get the fan to turn on this way using a Shelly H/T, a Shelly 1 and Home Assistant (probably also just through Shelly Cloud as well but I'm not sure as it is not my preferred method for this).

    My question then is would it be possible to use a Shelly Dimmer 2 for this to enable control over the variable speeds as well? If not, is there another Shelly device that I should use for this use case? Thank you in advance for your suggestions.

    • Hilfreichste Antwort

    No, Shelly Dimmer2 is for dimmable lights only and cannot be used to control fans.. there's currently no Shelly device for fan (speed) control on the market.

    >100 Shellies, darunter so gut wie alles was der Hersteller produziert hat. ;)
    :!: ich beantworte grundsätzlich keine Fragen per persönlicher Nachricht:!:

  • Thank you for the quick response. I had thought that might be the case. Hopefully a Shelly device that can do what I am after will be available in the future. Looks like I will need to find another way in the meantime though. Thanks again.

  • No, Shelly Dimmer2 is for dimmable lights only and cannot be used to control fans.. there's currently no Shelly device for fan (speed) control on the market.

    In the data sheet for Shelly DIMMER2 you can read „...inductive loads 50 to 150VA...“!?

    Mit der Elektrik ist das doch ganz einfach. Alles, was man sich merken muss: Rot ist Schwarz und Plus ist Minus, dann klappt‘s immer:!: Und beim Programmieren hat man auch nur Nullen und Einsen, also wie kompliziert kann das schon sein:?: