This part of the IEC 61851 series, together with [IEC 61851-1:2017] and [IEC 61851-23 Ed 2.0], provides the requirements for DC EV supply equipment with an automated connection device (ACD) for conductive connection to the vehicle, with a rated maximum voltage at side A of up to 1 000 V AC or up to 1 500 V DC and a rated maximum voltage at side B up to 1 500 V DC. NOTE 1 This standard includes information on EV for conductive connection, but limited to the necessary content for describing the power and signalling interface. This document specifies the DC EV supply equipment with an automated connection device based on " system B described in Annex BB of [IEC 61851-23 Ed 2.0]. " system C described in Annex CC of [IEC 61851-23 Ed 2.0]. The requirements for reverse power transfer (RPT) and BPT are under consideration and are not specified in this document. EMC requirements for DC EV supply equipment are defined in [IEC 61851-21-2:2018]. This standard provides the general requirements for the control communication between a DC EV supply equipment and an EV. The requirements for digital communication between DC EV supply equipment and electric vehicle for control of DC energy transfer are defined in [ISO 15118-20:2022] and [IEC 61851-24 Ed 2.0 CD]. This part only applies to automatic couplers of category 2: using an electro-mechanical interface: automatic coupler for an automated charging system according to [IEC 63407]. This part does not apply to automatic coupler of category 1 as described in [IEC 61851-27 CD] This part does not apply to automatic coupler of category 3 as described in [IEC 61851-26 CD] This standard does not cover all safety aspects related to maintenance. Requirements for systems not providing simple separation or protective separation between side A and side B are under consideration. Requirements for EV supply equipment without current, voltage and/or power control are under consideration. EV supply equipment in compliance with this document are not intended to provide energy transfer to a single EV with: multiple vehicle connectors of the same EV supply equipment; or multiple EV supply equipment. NOTE Requirements for EVs mated to an EV supply equipment are specified in ISO 17409: 2020. ISO 17409 will be revised to ISO 5474 series (under development).