Introducing the NEMA 10-30 Y splitter with one NEMA 10-30 receptacle and one NEMA 14-30 receptacle. This splitter cord plugs in to your NEMA 10-30 outlet, and splits it into two outlets – a NEMA 14-30 and a NEMA 10-30. Now you can keep both appliances plugged in at the same time. Just make sure you don’t exceed a total of 30 amps if you intend to use them at the same time. The included green wire simply plugs in to a nearby standard wall outlet and is necessary to provide a reliable ground connection.