I ran into something this past week that I have never seen before. In this area you will often see the disconnects for the major appliances as separate breakers along with the main disconnect for the interior service panel below the electric meter. I pulled the exterior panel cover and found dead man switches and I have no idea what they were for. The breakers for the heat, AC and stove were at the interior panel along with the main disconnect 200 amp breaker. There was no female receptacle as you may find for a generator hook up to be found—so that is not what it is. A barn was on a 100 amp disconnect breaker in a second interior panel. Has anyone seen a set up like this before and what could it be used for?