With the vigorous development of the new energy vehicle market and the continuous expansion of charging infrastructure construction, the quality of electric vehicle power supply equipment and charging safety have become more and more important. The National Energy Administration has formulated the mandatory national standard GB 39752-2024 Safety Requirements for Electric Vehicle Power Supply Equipment, and jointly developed the mandatory national standard GB 44263-2024 Safety Requirements for Conductive Charging Systems for Electric Vehicles with the Ministry of Industry and Information Technology. Both standards have been recently released and will come into effect on August 1, 2025. GB 39752-2024 applies to all types of power supply equipment connecting electric vehicles to the power grid (power source), with a rated output voltage of AC 1000V or DC 1500V and below, including In - cable Control and Protection Devices (Mode 2), AC charging piles (Mode 3), and DC chargers (Mode 4). Among them, the requirements for residual current protection are aligned with the European standards (EN standards) of the International Electrotechnical Commission (IEC), clearly stipulating that the residual current protection device of electric vehicle power supply equipment must have the following functions: the ability to protect against AC residual current, pulsating DC residual current, as well as detect and protect against smooth DC residual current of 6mA and above.

Recently, the Bilibili content creator "Zooming Power" carefully disassembled the Great Wall Motor 7kw AC charging pile. In the video, the A+6 residual current sensor RCPD - 08DS75 - 2P6 independently developed and produced by our company can be found. The residual current sensor of RICHSENS complies with current and future national mandatory standards and regulations.

Hubei RICHSENS Sci&Tech Co., Ltd. has multiple automatic production lines with an annual production capacity of over one million units for both its Type B residual current sensors and Type A+DC 6mA residual current sensors. Through continuous product iteration and technological innovation, RICHSENS continuously optimizes product performance, providing solid technical support for over 100 charging pile enterprises at home and abroad. RICHSENS will continue to leverage its leading edge in sensor technology, strengthen cooperation with upstream and downstream enterprises in the industrial chain, jointly promote the innovation and development of charging technology, and contribute to building a safer, healthier, and more sustainable charging environment. Welcome customers to inquire!