I bought a house recently and I have some experience with electrical but I am not fully sure what would be the best course of action since I've never had a detached garage where the cable would be buried between the house and the garage.
I already have a 20 amp breaker in the main panel and a subpanel with 2 breakers at 15 amps in the garage. They are currently wired with a 12/3 gauge cable.
I would like to upgrade to a 50A breaker on the main panel so that I could have in the garage sub-panel:
- 20A 120v breaker
- 20A 240v breaker
- 15A 120v breaker
Would you all be able to help me try to figure out what I should do?
My current plan was to buy about 100 feet of 6/3 Romex and use the currently buried conduit to pass the new wire and install on the current main panel a 50A breaker.
My main panel is 200A, currently in NJ in case anyone knows any code problems that I should be aware of.
Where the conduit leaves the house: