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    #16
    Re: Circuit maximum load

    thhn is rated for 25 amps at 60C.

    so do people agree with or disagree with: it is permissible to load a 20A 100% breaker up to 20A if you use 90C rated conductors that can carry 125% of the connected load?
    example
    #12 thhn would be protected by no more than a 20A breaker.
    #12 thhn is 90C rated
    #12 thhn is rated for 25A (125% of 20A) at 60C
    100% 20A rated breaker is capable of 100% 20A continous load.

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      #17
      Re: Circuit maximum load

      Yes you could, assuming you could find the appropiate 100% rated 20A breaker.
      Just because you can, doesn't mean you should.

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