i have a mppt 5048 split phase and have 120 or 240 if I need it in my shop, you can just use one side of your b reaker box if you have 2 hot legs. l-1 and l-2 and the one neg { white wire }, for surge matters, I connect a jumpter between 2 20 amp breakers and it will run my wire fead welder fine and powers my table saw