What NEC code section does the feeder installation to this panel violate? The panel is fed from a 100A, 2-pole branch circuit breaker in a distribution panel (120/240V, 1ph, 3w). The feeder size to this panel is (4) #2TW....(2 hots, 1 neutral, 1 equipment ground). I see several violations but I'm looking specifically at the one where the hots land on the main lugs. What section could I refer to that tells me this is a violation? Thanks.