Connect the switch as you would with a simple switch handling each pole separately. A double pole double throw switch is used for this purpose but you have to wire it up correctly.

546 Double Pole Double Throw Switch Wiring Diagram Wiring
Double pole rocker switch wiring. A double switch allows you to operate two lights or appliances from the same location. This kind of mistake is easy to make and potentially very dangerous depending on the application. Two for incoming hots and two for outgoing hots. Enerlites double paddle rocker combination decorator switch ground terminal push in and side wiring copper wires only single pole or 3 way residential grade 15a 120 277vac 62835 w white 47 out of 5 stars 5. A double pole switch is what you need to control a 240 volt device because 240 volt circuits have two hot wires. Make sure that there are no cross connections between the two poles.
This is a double pole double throw dpdt momentary illuminated momentary rocker switch it has one ind lamp at the top. The difference between a single and double pole switch is that the latter controls two circuits at the same time. When you need to control a dc motor such as a dc linear actuator you usually need to be able to swap the polarity on the wires going to the motor. Double switches sometimes called double pole allow you to separately control the power being sent to multiple places from the same switch. It has four terminals. Cap wires as needed.
Wire a dpdt rocker switch for reversing polarity. Your time will be well spent double checking your work. The wiring diagram to the right will show how to wire and power this 12v 20amp on off on 3 way carling contura rocker switch.