I have one of those too! Since I took the pic there's been major upgrades, but the disconnect is still used as a 30A panel. I just love edison fuses for some reason. XD I also have one extra disconnect unused at the moment, similar to the dark grey one.
Cool. I don't have anything like these in my house! In my house all these above appliances are just doubled-up circut breakers in the breaker panel in the garage.