This document covers the general physical, electrical, functional, testing, and performance requirements for conductive power transfer to an electric vehicle using a coupler capable of, but not limited to, transferring three-phase AC power. It defines a conductive power transfer method including the digital communication system. It also covers the functional and dimensional requirements for the vehicle inlet, supply equipment outlet, and mating housings and contacts.
The existing SAE conductive charging standards do not allow for the vehicle to utilize three-phase AC power. Three-phase power transfer is targeted at commercial and industrial locations or other areas where such power is available. Grid stability is enhanced by presenting a symmetric three phase load, especially at high power levels.