Electrical – run 2 wires from a 2 pole breaker to a single slot on the EV charger

circuit breakerelectrical-panel

I am running a #6 wire from my sub-panel to an electric car charger. The car charger only has 3 inputs, for the hot, neutral, and ground. It's the Tesla Gen 3 charger with the manual and diagram found here.

Home Depot doesn't carry a 60 amp, single pole Square D breaker. I picked up this 60 amp double breaker here.

Can I run both hot wires from the 2-pole breaker into a single slot on the Tesla Wall Charger?

Best Answer

As a 240V load in the US, that takes two hots (from opposite legs of your service) - NOT hot and neutral. The two-pole breaker is exactly what you need. If you’re using cable with white/black/ground wires, you’ll need to re-mark the white to a hot color (such as red or black), and connect one to each pole of the breaker.

A 60A breaker on just 120V would not be done. A ~6KW load would have four times the voltage drop (and require larger more expensive wire) compared to the same power at 240V, so loads that big are always at the higher voltage.