Advanced Current Monitors for Domestic EV Charging Installations

08 January 2024

The CDSR series of accurate but cost-effective Type B residual current monitors from LEM has been expanded to provide engineers with more operational scope.

They can now be supplied with fault output, SPI bus and analogue output options. As a result, the AC wall box installations and charging cables used to support electric vehicles (EVs) will be able to benefit from greater levels of safety and reliability. Leveraging LEM’s proprietary take on Fluxgate technology, the current monitors have a major role to play in curbing electromagnetic interference (EMI) and extending the operational lifespan of EV charging equipment, as well as proving invaluable insight from a preventive maintenance perspective. These devices can determine current leakages going down to just 5mA. They are suitable for use in 3.3kW to 22kW AC implementations and fully conform with IEC 62752/62955/UL 2231 tripping standards. 1-phase and 3-phase versions are available.

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