Repurposing an electric oven 40A circuit for charging

[Tommy]

@ Discoducky did you see my post directly above yours. I posted an Excel spreadsheet to help you calculate if your panel has the ampacity for an additional circuit.

 

[FlasherZ]

So, would adding a 50A for the NEMA 14-50R be too much for the sub-panel without repurposing the electric oven breaker

Yes, it will be okay unless you're running the electric oven and all four burners while charging the car and drying clothes all that the same time, with most lights and appliances and lights on. That assumes there's a 100A breaker in the upstream service panel -- it may be a 125A in which case I know you'll have plenty of room.

Your panel is fine in terms of capacity - the question will be the upstream breaker size in the main panel.

 

[Lloyd]

You will need to pull off the front panel and see if there are extra slots for a breaker as Flasher indicated above. Caution, there are live wires behind. You may wish to remove power to this panel first.

 

[Discoducky]

@ Discoducky did you see my post directly above yours. I posted an Excel spreadsheet to help you calculate if your panel has the ampacity for an additional circuit.

Just saw it and I'm going to fill it in this weekend, thanks!