I'm designing up a control panel for an electric BIAB setup. I'm looking for it to have two modes, three with off. On, which is basically just on and then auto where the relay is connected to a automated controller of some sort, craftbeerpi, brewblox, PID controller, etc. I haven't come across many designs for the On and Auto functions. The only way I can come up with is two contactor relays per switch. One per mode. I attached a picture of the design to this post using a 120V setup to a pump. Am I overcomplicating this or is this the best way? I could go with a one pole contactor but for some reason it felt like a better practice to cut both lines. Thanks in advance!