Time off Delay Relay circuit needed

Discussion in 'The Projects Forum' started by edania, Aug 19, 2010.

  1. edania

    Thread Starter New Member

    Aug 18, 2010
    3
    0
    Hello,
    I desperately need a circuit to use a Momentary N.O. Switch to energize a 12Volt Relay, and after 3 or 4 Minutes automatically turn it off without any intervention.
    Please any help will be highly appreciated!
    Thanks
    Bye
     
  2. soda

    Active Member

    Dec 7, 2008
    174
    13
    This is a diagram of a mono stable. Adjust the Pre-set to set your time and then press the start switch
     
  3. edania

    Thread Starter New Member

    Aug 18, 2010
    3
    0
    Thanks Soda,
    I 'am going to try it out !
     
  4. edania

    Thread Starter New Member

    Aug 18, 2010
    3
    0
    Hello,
    Had to make some adjustments to the circuit.
    Timer Works perfect
    Many thanks!
    Bye
     
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