eprosenx
Active Member
My understanding is no, due to temperature rating of the sheathed 6/3 Romex. I had this discussion with a few members here and came to the conclusion (after arguing something that I was not understanding correctly) that I needed to replaced my 6/3 Romex with #6 THHN in conduit.
HPWC wiring - neutral as ground in video?
And to add more color, you could also use 4 AWG romex if you did not want to do conduit (though I really like conduit in many use cases).
But yeah, 6 awg Romex (NM-B) cable is not acceptable on a 60a circuit.