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Posts posted by ante

  1. You are way of; start reading up on things before you open up! There is NO arcing when the contacts are closing unless a. the voltage is high enough to jump across the contact pair before they are shut or b. the relay is stupidly under-dimensioned for the purpose! What you might se at the closing moment could be a spark NEVER arcing!
    And you know what you can do with the

  2. Arc flash across a relay is somewhat common because of the large motor load that is being switched in, generally you would purchase a relay for the required specification.
    When purchasing the relay make sure to specify the MAX voltage/Current, factor in the NEC requirement and ask for the latter with arc supression etc...

    Arcing is NOT caused by switching IN a load! Arcing is caused when opening the relay contacts (switching out a load)!
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