Help about relay

Discussion in 'General Electronics Chat' started by yori, Apr 26, 2010.

  1. yori

    Thread Starter New Member

    Apr 6, 2010
    6
    0
    I have this problem on relay that it didnt have an output voltage when we energize the coil.I check the continuity of the normally open contacts(it become close now when i apply voltage to the relay coil.I check the pin configuration with the broken relay-its the same.

    what is the reason behind why is it that i dont have the voltage output? Is there any way that i can modify the said relay?

    thanks
     
  2. eblc1388

    Senior Member

    Nov 28, 2008
    1,542
    102
    A relay is a switch that gets turn ON or OFF electrically instead of mechanically by hand.

    A relay will not output any voltage by itself. However, it will allow a voltage/current from one side of the open contact to pass over to the other side when you powers up the relay coil.
     
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    The coil side of a relay and the LOAD side are not connected electrically.

    This allows you to use mixed types for switching.
    For instance, You can use 5vDC to energize a coil that allows 120vAC through the LOAD side.
     
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