Residual Current Monitoring for EV charging

| Information and Communication Technology

Residual current monitor for electric vehicle chargers

LEM has launched a new product in its CDSR series of Residual Current Monitors.

Now available with three output types – fault output, SPI bus, and analogue output – the new product brings an increased level of safety and reliability to AC wall boxes and charging cables.

Offering cost-effective leakage current detection, the new LEM CDSR reduces electromagnetic interference, aids preventive maintenance, improves the reliability of AC electric vehicle chargers and gives users confidence in the safety of their charging system.

Based on LEM’s Fluxgate technology, the new LEM CDSR is an RCM type B. Compliant with international tripping standards (IEC 62752/62955/UL 2231), the CDSR family is suitable for 3.3 to 22 kW AC charging systems and is offered in both single and three phase versions.

Meeting shock hazard and switchboard protection requirements demands a highly accurate method of monitoring AC and DC current leakages, with the ability to measure leakages as low as 5 mA, some 10,000 times smaller than the current flowing in the conductor.

The LEM CDSR family achieves this using LEM’s fluxgate technology with fixed jumpers phase current. This uses mechanical placement to optimize performance, making it the most accurate contactless technology available today.

Jonathan Newell
Latest posts by Jonathan Newell (see all)

Related news

Read More News From LEM International: