Industrial Building 480v 400-Amp Service

[FastTracker]

If the feeder originates from a separate building do you need to have a disconnect before the 400-amp panel that has a main breaker?

 

[petersonra]

If the feeder originates from a separate building do you need to have a disconnect before the 400-amp panel that has a main breaker?

maybe. where is the panel located?

btw, the panel rating is not relevant.

 

[augie47]

(a) is the 400 amp panel "nearest the point of entry of the conductors"
OR
do you qualify under the exception to 225.32

 

[FastTracker]

maybe. where is the panel located?

btw, the panel rating is not relevant.

In a new water pump building. The Feeder will stub-up right into the bottom of the panel with maybe a short steel nipple

 

[FastTracker]

(a) is the 400 amp panel "nearest the point of entry of the conductors"
OR
do you qualify under the exception to 225.32

Yes it is a new building and conduit will have a short steel nipple right into the panel

 

[roger]

Yes it is a new building and conduit will have a short steel nipple right into the panel

Then you should be fine.