Feeder Size

[mstrlucky74]

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?

 

[MrJLH]

Sounds like you have an issue with the tap rule.

 

[Dennis Alwon]

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?

 

[Dennis Alwon]

I assume the panels have a main breaker...Yes?

 

[electrofelon]

I assume the panels have a main breaker...Yes?

I don't think they need one

 

[Dennis Alwon]

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..

 

[infinity]

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

 

[mstrlucky74]

I assume the panels have a main breaker...Yes?

Yes

 

[mstrlucky74]

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

Yes, splice or tap.

 

[mstrlucky74]

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?

 

[david luchini]

Why would the size matter as to whether it's a splice or tap?

See 240.2 - Definition of "Tap Conductors"

 

[mstrlucky74]

See 240.2 - Definition of "Tap Conductors"

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