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relays in series

Discussion in 'High Voltage' started by throbscottle, Jun 11, 2013.

  1. throbscottle

    throbscottle Well-Known Member

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    If I connect two or more relays in series, will the stand off voltage for the whole be close to the sum of the individual stand off voltages? The switching voltage doesn't have to change, it's the stand off voltage that matters.
     
  2. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    hi throb,

    Are the relays the same coil voltage and resistance.?
     
  3. throbscottle

    throbscottle Well-Known Member

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    Thanks Eric, they are, yes, but I actually meant connecting the contacts in series!
     
  4. dave

    Dave New Member

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  5. EternityForest

    EternityForest Member

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    I think the standoff would be close to the sum, but it you ever close one without the other, depending on current, you might have a spark gap in the open relay that will destroy it pretty quick.
     
  6. throbscottle

    throbscottle Well-Known Member

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    That's what I thought - just needed to hear it from someone else!

    Thanks :)
     

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