Simple AC motor On/Off

Forum 2005-2010 (read only) Hardware Interfacing
3

Thanks Massimo! SSR is the answer!

And I'll go for the pre made version.

Questions...

I want to turn on and off a single phase, capacitor start, AC motor. low frequency - on for 10 secs, off for 2 minutes.

  1. Does it matter where I connect the SSR in the AC motor circuit? Can I just put it anywhere on the supply line? or do I need to take the capacitor into consideration??

  2. As far as I understand it, all I need is the arduino board, the SSR, the motor and motor start capacitor. Is it really that easy?? No diodes, resistors or capacitors?? (please say yes)

  3. Excluding voltage and current ratings, is there anything I need to consider when choosing a SSR??

  4. Are all SSRs opto-isolated??

Sorry for all the questions..... Thanks for all the answers!.....

Jonathan