Blue Sea Systems AC Rotary Switch - OFF + 3 Positions 120V AC 30A - 9010Blue Sea Systems AC Rotary Switch OFF + 3 Positions 120V AC 30A 9010 Switches 3 120 or 230 Volt AC sources Compact solution when circuit protection is provided elsewhere Allows connecting one of two different AC sources to one circuit Mounts in panels up to 0. 16" (4. 00mm) thick Heavy duty industrial rated switch Intuitive function One hand operation UL listed