Control Wiring - 3-Wire Control - Start Stop Circuit Then wire one of the contacts in on the contactor to turn on Light 1 whenever the contactor energizes. Use the top diagram to help you figure out how to wire it. Hint: The start button is normally open and the stop button is normally closed. × How do i wire two garage door open/close/stop switches for May 22, 2010I do not have the switch with me now. I believe there were 6 terminals on the switch with an open close and stop. the directions do state that if we use the stop button I have to wire them in series. I am looking for a wiring diagram.