12 channel relay to control fans?

Discussion in 'C-Bus Wired Hardware' started by Tension, Nov 6, 2025 at 12:36 AM.

  1. Tension

    Tension

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    Is there any reason I can't use a few spare relay channels to control extractor fans? Don't need any speed control, just on/off for extractor fans really. I'm worried about what will happen when I turn them off as the motor is an inductive load and can cause a spike.

    Thoughts?
     
    Tension, Nov 6, 2025 at 12:36 AM
    #1
  2. Tension

    Graham Lamb

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    I have use them for fan control without any problems the relays are rated at 10 amp AC3 (inductive load) if the load is greater use the cbus relay to drive a contractor with a larger capacity.
     
    Graham Lamb, Nov 6, 2025 at 2:19 AM
    #2
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