Nec 300-20

[jamieschmidt]

Does this requirement of running the phase conductors with a neutral conductor apply within a motor control enclosure that has plastic wireways?

We have a 208V 3 Ph supply, and are taking a phase and neutral to a contactor, do we need to run these two conductors side by side when routing through the panel, or can they be split apart for this routing?

 

[chris kennedy]

We have a 208V 3 Ph supply, and are taking a phase and neutral to a contactor, do we need to run these two conductors side by side when routing through the panel, or can they be split apart for this routing?

300.20 Induced Currents in Ferrous Metal Enclosures or Ferrous Metal Raceways.
(A) Conductors Grouped Together. Where conductors carrying alternating current are installed in ferrous metal enclosures or ferrous metal raceways, they shall be arranged so as to avoid heating the surrounding ferrous metal by induction. To accomplish this, all phase conductors and, where used, the grounded conductor and all equipment grounding conductors shall be grouped together.

I would run them in opposite sides of the can in a heartbeat without worrying about induction. JMO.