What Is A RDC-DD, RDC-MD And RDC-PD？

Since the publishing of IEC 62955 standard in 2018, RDC-DDs have been widely used in Mode-3 EV charging to detect DC residual current. The author introduces the function of RDC-DDs and its classification as RDC-MDs and RDC-PDs.

RDC-DD is the abbreviation of Residual Direct Current Detecting Device (RDC-DD) to be used for mode 3 charging of electric vehicles. It is the IEC 62955:2018 standard that specifies RDC-DD to ensure that the proper functionality of RCDs type A or type F is not impaired by DC residual currents above 6 mA. RDC-DDs are intended to disconnect the power supply to the EV in cases where a smooth residual direct current equal to or above 6 mA is detected.

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Shanghai, China

Shanghai Bituo Electric Co., Ltd.

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