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    Feeder Size

    So have a 150A breaker feeding three 200A panels. It’s one feeder of 4 #1/0’s and #6. Two of the panels are gutter tapped and total feeder run length is 150’ Each panel have total connected load of 4,800. #1/0 good for 150A. Is this the right feeder size for this situation?

    #2
    Sounds like you have an issue with the tap rule.

    Comment


      #3
      Originally posted by mstrlucky74 View Post
      So have a 150A breaker feeding three 200A panels. It’s one feeder of 4 #1/0’s and #6. Two of the panels are gutter tapped and total feeder run length is 150’ Each panel have total connected load of 4,800. #1/0 good for 150A. Is this the right feeder size for this situation?
      If each panel only has a load of 4,800 va or watts then 150 amp (1/0 copper) should be fine. What are you having a problem with on the install?
      They say I shot a man named Gray and took his wife to Italy
      She inherited a million bucks and when she died it came to me
      I can't help it if I'm lucky

      Comment


        #4
        I assume the panels have a main breaker...Yes?
        They say I shot a man named Gray and took his wife to Italy
        She inherited a million bucks and when she died it came to me
        I can't help it if I'm lucky

        Comment


          #5
          Originally posted by Dennis Alwon View Post
          I assume the panels have a main breaker...Yes?
          I don't think they need one
          Ethan Brush - East West Electric. NY, WA. MA

          "You can't generalize"

          Comment


            #6
            Originally posted by electrofelon View Post

            I don't think they need one
            It depends on what size the tap conductor is... If they are 1/0 then it is not really a tap..
            They say I shot a man named Gray and took his wife to Italy
            She inherited a million bucks and when she died it came to me
            I can't help it if I'm lucky

            Comment


              #7
              Sounds like a splice not a tap so no main OCPD required at each of the three panels.
              Rob

              Moderator

              All responses based on the 2017 NEC unless otherwise noted

              Comment


                #8
                Originally posted by Dennis Alwon View Post
                I assume the panels have a main breaker...Yes?
                Yes

                Comment


                  #9
                  Originally posted by infinity View Post
                  Sounds like a splice not a tap so no main OCPD required at each of the three panels.
                  Yes, splice or tap.

                  Comment


                    #10
                    Originally posted by Dennis Alwon View Post

                    It depends on what size the tap conductor is... If they are 1/0 then it is not really a tap..
                    Why would the size matter as to whether it's a splice or tap?

                    Comment


                      #11
                      Originally posted by mstrlucky74 View Post

                      Why would the size matter as to whether it's a splice or tap?
                      See 240.2 - Definition of "Tap Conductors"

                      Comment


                        #12
                        Originally posted by david luchini View Post

                        See 240.2 - Definition of "Tap Conductors"
                        ty

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