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Debugging a sugar cube relay

Discussion in 'General Electronics Discussion' started by bobdxcool, Sep 4, 2015.

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  1. bobdxcool

    bobdxcool

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    Mar 9, 2012
    I have a sugar cube relay which I am using with my controller. It turns On/Off when high or low signals are sent from the microcontroller. It can take upto 240V AC at 10 amps. The way the relay circuit board is that I connect the positive and negative of DC or AC Line and neutral at the input terminals, I get the positive and negative DC at the output terminal blocks or line and neutral at the output terminal blocks When I connected 120V AC Line and neutral wires at the input terminals of the relay, at the output I am only getting 12V AC. What could possibly the reason for this ? Is the relay broken ? It was working fine a few days ago.
     
  2. Gryd3

    Gryd3

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    875
    Jun 25, 2014
    Can you please draw us a diagram? This help to eliminates mistakes on our part, and considering the voltage you are working with, I would certainly call that a requirement.
     
  3. bobdxcool

    bobdxcool

    98
    0
    Mar 9, 2012
    I have attached a picture of the relay board here. The second relay on the right works fine. But the first one doesnt. I gave 120V Line and neutral at the input, and am getting only 12V AC at the output.
     

    Attached Files:

  4. Gryd3

    Gryd3

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    Jun 25, 2014
    Sounds broken to me... Can you provide an image of the bottom of the board?
     
  5. Minder

    Minder

    3,181
    690
    Apr 24, 2015
    What I would do is first remove the AC side completely and check continuity from both in and out for 0 ohms when the relay is energized.
    M.
     
    Gryd3 likes this.
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