I have a 2 post auto lift. On the motor plate it says: 3hp 220v 20 amps. There is also a safety shut off switch on top if the car gets raise too high. The wires for the safety switch run down the column to where the motor is. The motor has a switch housing with 3 wires coming out the housing. Green, Red, and Tan. On the face of the housing is the push button. It is connected to the switch inside with 2 blue wires. To connect the safety switch, I'm told to spice into any one of the blue wires from the push button going into the main switch. Questions: Should I use a 20amp 220v breaker or go up to a 30 amp. If I go to a 30 amp. Should I go up to 10 AWG, or can I still use the 12 AWG. The tan motor wire used as ground seems odd. I'm used to seeing green for ground. The green and red wires are on one side of the switch. The other side has two wires going to the motor. Do I just connect the tan to bare wire/ground buss, and the red and green just go to black and white (re-marked black) to the breaker? Thanks.