How To Upgrade An Electrical Panel To 400 Amps

[@perkuskamui]

sweet. i'm a total novice and will definitely attempt to upgrade my paneltomorrow. THANKS!

[@coreyfranco7060]

How are we using 4/0 Al on this 400a service?

[@everythingresidential]

@@coreyfranco7060 that’s the service from the transformer which was buried in the ground from the 70s

[@coreyfranco7060]

​@@everythingresidentiali thought the video it was 1/0 being replaced with 4/0?

[@everythingresidential]

@@coreyfranco7060 there was an existing 1/0 from the panel that is spliced into the 4/0 that is coming from the transformer. They upgraded the 1/0 to a 4/0 at the mobar connection.

[@coreyfranco7060]

Thwn no? Not thhn