A. Branch-circuit conductors must have an ampacity of not less than the maximum load to be served. Conductors must be the larger of 210.19(A)(1)(a) or (b): (a) Conductors must be sized no less than ...
Once you know the ampacity of the branch-circuit conductors [210.19] that the overcurrent device (OCPD) is protecting, you can determine the size of the OCPD [210.20]. The rating or setting of the ...
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