New leakage current sensor for electric vehicle charging stations

IVY has launched the MD series before, MD series = Measuring device series including mA level current sensor and up to 600A current sensor with optional communication. Today we are introducing a new leakage current sensor based on its open-loop Fluxgate Technology. It is innovative, remarkably compact and safe, enabling manufacturers to optimise the electronic design of their charger products.

Since 2016, IEC standards and more particularly IEC 62955/IEC 62752, need the detection of a Direct Leakage current at 6mA DC to avoid the home RCD Type A being ineffective. This effect, called 'the blinding effect', arises when an EV develops an insulation fault.

EV architecture combines a battery pack powered by DC, which can generate a leakage current that can deactivate a home RCD. To protect the RCD and evade the requirement to install an RCD type B in the electrical panel of home EV owners, these chargers incorporate a device to identify the DC leakage current. This detection is one of the most important role in EV charger.

The device has been produced to satisfy market demand for a residential and commercial charging station, providing a version for single-phase architecture and another for three-phase topology. With a maximum current per phase of 32A RMS, the device can be combined into AC chargers from 3.7kW to 22kW.

Following the trend towards digital electronics, the device offers not only an analog communication output but also an SPI, facilitating simple interfacing of hardware. It operates from a 12 VDC supply and has the measurement range of DC current 2-15mA; AC current 3-100mA (default threshold: DC 6mA, AC 30mA).

Extremely robust, the device can function inside all EV chargers. It provides an operating temperature between -25℃ to 85℃, What’s more it can meet UL standard and IEC62955, IEC62752/IEC61851-1/IEC62196; TUV(UL2231); CE; IS17017 under preparation.

In a word, AC DC leakage current sensor from MD series suits for mode1 AC-charging wall outlet, mode 2 AC-charging wall outlet IC-CPD, mode 3 AC charging wall-box, AC public charging station and mode 4 DC charging. Same time if you need relay breaker for 1 ph 16A/32A, 3 ph 32A or 3 ph 63A EV charger,plz refer to Manufacture ,Export , Wholesale, (ivy-metering.com).IVY METERING, forerunner on New Energy Parts.