完整英文版UL 2251：2017 Standard for Plugs, Receptacles, and Couplers for Electric Vehicles（电动汽车的插头，插座和耦合器），本标准涵盖额定值高达800安培和交流或直流600伏的EV插头，EV插座，车辆入口，车辆连接器和EV分离式联轴器。这些设备旨在与导电电动车辆供应设备（EVSE）一起使用，并旨在促进从EVSE到车辆的导电连接。根据附件A、参考文献A，这些设备

UL 2251: Standard Testing for Charging Inlets and Plugs

UL 2251 - Standard for Safety for Plugs, Receptacles and Couplers for Electric Vehicles, First Edition

The UL 2251 standard requirements cover plugs, receptacles, vehicle inlets, and connectors rated up to 800 amperes and up to 600 volts AC or DC, and intended for conductive connection systems, for use with electric vehicles in accordance with National Electrical Code (NEC), ANSI/NFPA-70 for either indoor or outdoor non-hazardous locations.