Hi all. Does anyone have a link to buy the type of wire needed to install the charge station pro? I called an electrical supply company and they don't sell the 3 AWG wire. Will a 2-2-4 or a 3-3-5 work? Haye to buy 80 feet of a wire and not be the right one.
Where to buy the wire
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I would very strongly suggest hiring an electrician for this. Charge station pro instructions indicate using 3 AWG Copper, as long as you use THHN and install in conduit this should meet electrical code as well. Going to SE cable or trying to use Romex changes the temp rating on the wire, and you may have issues with larger wires fitting in terminals.
THHN is required to be run in conduit, if you want to save some money you can run the conduit for your electrician ahead of time. Your electrician will have no trouble getting #3 THHN from the wholesaler. Also, keep in mind that in many jurisdictions you should be permitting this type of work, as you are dealing with a large amount of current, and using the wrong size/type of wire can result in a fire.
THHN is required to be run in conduit, if you want to save some money you can run the conduit for your electrician ahead of time. Your electrician will have no trouble getting #3 THHN from the wholesaler. Also, keep in mind that in many jurisdictions you should be permitting this type of work, as you are dealing with a large amount of current, and using the wrong size/type of wire can result in a fire.
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I'd be shocked if your supply houses didn't have 3 THHN, they might just not sell it to John Q. Homeowner. Lowes/Home Depot sometimes have it also. I'd also be careful on your length, I usually automatically add 10 feet to any measurement I do, and sometimes still barely make it. Much cheaper to recycle 8 feet than to have to order a 90 foot length after the 80 was too short (not saying you aren't taking into account, just reflecting on my own experience).
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With a run that long, I'd run Code accepted cable to a disconnect near the FCSP. Then run properly sized copper in conduit from the disconnect to the terminals on the FCSP. That solves the terminal size issue. I'd want a disconnect close to the EVSE even if not yet required by NEC for an EVSE not in proximity to its breaker.
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Would also come in handy with the power cycling that some folks are needing to do with getting the FCSP connected.
Thanks for the comment on getting extra. I did do that. My plan was to run everything but not make the connections. Have an electrician come in and do that. Then have 3rd party inspect to close out permit. I was thrown for a loop when I went to electrical supply store and they told me that they don't have it. And other supply stores wouldn't either. It just seemed strange to me. So I figured I would post here.
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Wholesalers don't like homeowners. I had to buy some 6/3 romex for something a few months ago, and the guy kept saying he didn't have it until I asked for 6/3 NM-B specifically, a real peach to deal with.
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