The plug works both for single phase 230-Volt connections, the vast majority of European outlets, as well as three-phasing up to 63 amps and 400 Volts, which results in a much shorter recharging time. It includes not only a connector, but also communication interfaces. A "plug present" contact, for example, turns on the immobilizer and a "Pilot Control" contact facilitates the exchange of data between the vehicle and charging station. In the U.S., the J1772 connector will likely be the new standard for plug-in vehicles.
[Source: Auto News]