GB 46519-2025 English PDF - Energy Efficiency Values & Grades for EV Power Supply Equipment

Standard Introduction

This document specifies the energy efficiency classes, minimum allowable values of energy efficiency, and test methods for electric vehicle power supply equipment.

This document applies to off-board conductive power supply equipment with current control and/or voltage control, where the rated voltage on the grid side does not exceed 1000 V (AC), and the rated voltage on the electric vehicle side does not exceed 1000 V (AC) or 1500 V (DC). This includes DC power supply equipment (Mode 4, Connection Mode C) and AC power supply equipment (Mode 3, Connection Mode B or C).

This document is not applicable to the following equipment:

—— Power supply equipment that only provides DC power on the grid side;

—— In-cable control and protection devices (IC-CPD) for Mode 2 charging;

—— Integrated AC-DC power supply equipment;

—— Integrated charging and energy storage equipment that loses charging function when the energy storage function is disabled;

—— Power supply equipment for automatic charging as well as top or bottom contact charging.

Note: The definitions of Mode 2, Mode 3, Mode 4, Connection Mode B and Connection Mode C are given in GB/T 18487.1 .