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6ma dc 30ma ac residual current monitor for ev charging protection

Pulished on Feb. 28, 2022

As the EU’s CO2 emission regulations are further strengthened in 2020, in the long term, electric vehicle manufacturers predict that the sales rate of electric vehicles will rise sharply. Chargers for electric vehicles act as the biggest factor in the supply and spread of electric vehicles, and companies that develop stable and more innovative EV chargers will lead the electric vehicle charger era. 


In particular, the current sensor using the MD series leakage products for future-oriented EV charging development provides an optimized guide for various designs brought by various charging modes. There are 3 main EV Charger modes:


1) Mode 2: AC power measurement 

Mode 2 is a mode in which electric vehicle AC power is supplied and charged through a cable and plug connected to a standard socket outlet. These cable lines are usually in the trunk of an electric vehicle and get plugged into the socket outlets when charge. Here, the function and system that protects the electric shock placed between the socket outlet and the electric vehicle are important. In other words, these devices, called IC-CPD (In-Cable Control and Protection Device), must meet the safety certification IEC 62752 standard. 


2) Mode 3: AC EV Chargers 

Mode 3 is an AC->AC EV Charger that works by being connected to the AC supply network. It is usually located in the home that owns an electric vehicle, or in many public commercial places such as airports, hotels, workplaces, and dealerships. 


3) Mode 4: DC EV Chargers 

The Mode 4 charging system converts AC from the grid to DC and charges the car without using an inverter. This mode is defined by IEC 61851-23 standard, integrates the functions like converting AC/DC power, protecting people from electric shock.



IVY METERING Co.,ltd has developed MD series leakage current detector to improve the safety and efficiency of this Mode 2. Above all, IVY MD leakage current sensor are RCD (Residual Current Device) that can detect leakage current to comply with safety certification IEC 62752. This is an element that supports the function to cut off the power of the house at the moment when a leakage current of 30mA (AC) and 6mA (DC) or more is detected in all of the user’s home appliance panels. In addition, IVY MD series are the DC residual current monitor so that it is not affected by DC when receiving AC power and is suitable for realizing safety and efficiency optimization. 


DESCRIPTION

This product is fully compliant with IEC62955.

The MD0630T01A is a residual current monitor intended for the detection of DC and AC residual currents in 50Hz/60Hz AC installations.

The MD0630T01A is primarily intended for use in Electric Vehicle charging stations to disconnect the supply to the Electric Vehicle under a DC residual fault current condition.

It may be used to detect DC and/or AC residual currents in DC, single phase or multi-phase installations.



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