On 17 Feb 2019 at 18:02, Robert Bruninga via EV wrote:

> Is this legal under the NEC?

On a 20 amp breaker, definitely.  On a 30 amp breaker, probably not. 

I don't have a copy of the NEC handy, and I'm not a code expert, but IIRC 
the code has (or had) a provision for using a size smaller neutral to feed a 
120/240v balanced load (nearly equal current on both legs of the line).  But 
since you can't warrant that both 120v receptacles will be in use at the 
same time, that exception (if it still exists) probably wouldn't apply to 
your case.

Pro electricians who follow the code daily may have more or better 
information for you.

David Roden - Akron, Ohio, USA
EVDL Administrator

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