The sw/board turned out to be labled for 3phase 3wire, but no had provisions for bonding B phase. It appeared to have been ordered incorrectly. Sq-D's bulletin on this(see above post) specifically mentions to specify grounded B phase when ordering.
I was also dismayed to see a glaring violation of 408.3(A)(2) on Sq-D's part. Equipment ground buss located at the top mere inches away from unguarded service buss bars.
The contractor is trying to convince POCO to supply as ungrounded delta. I don't know if POCO is allowed to do this or will do it. If so, that will solve one problem.
