I have a MCC feeding a 600 amp 277/480 4 wire MCC. I'm using parallel 500mcm for the phases but there is no actuall load on the neutral so can I get away with no neutral? My concern is that the blue prints list it as 4 wire so do you think they want a neutral pulled for future use maybee?
Tim Where is this MCC getting it's control power from? If the plans and specs call out 4 wire, I would install a full size neutral. You cannot know what is planned for the future unless all the MCC buckets are used now.
Re: sizing nuetral for M.C.C.#30719 10/27/0305:32 AM10/27/0305:32 AM
One bucket of the mcc is feeding a transformer which in turn id feeding a 120/208 panel. This panel is feeding two controll panels for all my controll wiring. Each bucket of the mcc has a TRF for the coils within it.
I did not bid the job but the nuetral was included in the bid so IMO it should be included but my superiors think different.
This post is mostly meant to justify my thinking, I wanted to make sure I wasnt missing something.
Re: sizing nuetral for M.C.C.#30721 10/27/0309:19 PM10/27/0309:19 PM