Thanks retired 2 ya got my brain working. Gonna draw up some control wiring for shop dust collector. Gonna use electric solinoid to open blast gates one for each gate (default closed). Turn machine on blast gate opens DC starts life is good all easy analog controls. Thinking 24 volt ac for coils in relays that way no voltage wire like cat 5 can be run.120volt to 24 volt ac transformer is a door bell transformer. A single 120 v circuit for selonoids controlled by relays Square D 6 pin ice cube relays. Nice task for me right now.