These receptacles are no longer permitted in new installations but are still in use where they already exist.
This type of receptacle allows you to plug in 120 and 240 volt devices. There are various 240 volt receptacles each made for specific amperages and appliances so be sure to buy the right one for your application.
110v Pigtail
Cooper Wiring Devices 7 Outlet 125 240 Volt 50 Amp
120 And 240 Volt Receptacles Better Homes Gardens
