to save myself some costs for adding a sub panel, I'm buying the cabling, sub panel, breakers, etc. NIM for an electrician to finish all the connections. I'm going to run the cables, etc. I'm wanting to add a sub-panel in my Garage (on other side of house from main breaker). Primary reason is we bought a hybrid, and the charger I got is wanting 50 amp breaker (https://www.costco.com/juicebox-pro-40-amp-electric-vehicle-charging-station-evse-with-juicenet%2c-24-ft-cable.product.100397573.html). I then would like to be able to add a shed off the garage in the future to run power tools as needed, possibly a heater, and run new outlets for holiday lights etc on the exterior.
- My main Panel is 200 AMP
- My distance is roughly 75ft from main to sub (this is about 7ft of play)
- I'm adding a 100AMP sub-panel with main cut off at root (e.g. https://www.lowes.com/pd/Square-D-Homeline-40-Circuit-100-Amp-Main-Breaker-Plug-On-Neutral-Load-Center-Value-Pack/50311143)
- Based on my research, I believe I can go #3 or #2 AWG, and I need red, black, white, and ground. Which I believe is also considered #2/3 with Ground.
- Planning on fishing wire on the interior
My questions are:
- What if we buy another hybrid, would you feel another charging station could be added? I feel this could happen, but not for a few years, but want to size right
- Does #2/3 w ground mean that it will have red, black, white, and
ground? In my research the pictures don't always match what I think is correct.
- Any suggestions on where to buy that size cable for reasonable price? e.g. is this ok? I'm assuming the color is really better (https://www.wireandcableyourway.com/industrial-cable/tray-cable-thhn-pvc/thhn-pvc-tray-cable-with-ground/2-3c-thhn-pvc-tray-cable-with-ground.html)
Thanks for any help, this site has been informative, and I tried to find matching questions, but then most people don't respond when asked for more details.
Let me know if I missed anything.
Editing to add (thanks to Harper):
I've already been talking with Master Electrician and he has worked with me in the past when replacing the 200 amp because when we moved in it was an old Stab-Lok panel that I wanted to get out of the house. In addition, permits have been pulled, but I need to adjust because they were going to be for the 200 AMP replacement and a direct line to the charging station. I since had two things happen, hired a "pro" (licensed/insured) contractor to remodel the basement and he promptly said he would, then ignored running the cabling before drywall was done. I then decided if I'm going to cut the drywall back open to run the wiring, I'll just add a larger panel and connect the charging station off of that.