does ground make any big difference?

Discussion in 'Embedded Systems and Microcontrollers' started by aka-rato, Jan 14, 2013.

  1. aka-rato

    Thread Starter Member

    May 11, 2012
    58
    0
    I have a relay circuit to turn a compressor on and off, i have neutral and earth in place so i jst dont know where earth fits.
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,392
    1,606
    The switch part to the compressor should only use hot and neutral.

    Earth is a safety connection that should only attach to the workbox or such... otherwise you may pass it uninterrupted down to the compressor.
     
  3. aka-rato

    Thread Starter Member

    May 11, 2012
    58
    0
    Okay thank you.
     
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