I am having trouble finding #16AWG single conductor for a control system that is outdoor rated. No one makes XHHW in #16. Does anyone know of another type of insulation that would be rated for outdoor industrial applications?
Right. Usually wire specifications refer to minimum sizes, larger wire is actually better in almost all cases, just a bit more expensive. The only caveat is if a termination device cannot accept the larger wire, but that is rare in this size range.
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