Use of "neutral" for multiple loads

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tadavidson

Senior Member
Location
Georgia
Occupation
Electrical Contractor
We are doing a job which has 14 varible air volume units. each unit is 3ph 480v.
480 is for strip heat in each unit but only uses one leg of each phase (277) to one side of the strip . the other side of the strips are common to a "N" terminal. There is a transformer with contactors for something also needing the neutral. can 1 neutral be pulled from main ocp and tapped to feed off each unit? This is commonly done with lighting isn't it. I know (i think) since this is not a trhee wire system technically this is not a neutral only a common.
 
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