Why IVY Metering's High-Sensitivity Integrated RCDs are Vital for EV Charging Safety

Electric Vehicle chargers(EV Charging) require residual current protection, mainly to prevent electric shock accidents and electrical fires caused by leakage. During the operation of an electric vehicle charging station, if there are problems such as insulation damage and line aging, leakage may occur. Leakage current sensor, also known as residual current sensor, can monitor the leakage current in the circuit in real time and quickly cut off the power supply when an abnormality is detected, thereby protecting personal safety and equipment safety. 

Role of RCD protection device:

Residual current protector can detect the residual current in the circuit, that is, unbalanced current, and will quickly cut off the power supply when the residual current exceeds the set value. This protection mechanism can effectively prevent electric shock accidents and avoid the occurrence of electrical fires.

Importance of Type B RCD:

Traditional Type A RCD can only detect residual current of AC and pulsating DC, while for DC charging piles, there may be smooth DC leakage, and Type A RCD cannot act effectively. Therefore, it is necessary to use a type B RCD, which can detect various types of residual currents such as AC, pulsating DC, and pure DC, and provide more comprehensive protection.

Application of residual current protector:

In EV chargers, residual current sensors are usually installed at the incoming line inside the EV chargers, and some are also installed in the external distribution box.

As the global adoption of electric vehicles (EVs) continues to accelerate, IVY Metering launches its cutting-edge MD0630 Series RCDs, an electromagnetic induction-based AC and DC leakage current sensor that converts leakage current into an electrical signal and provides an isolated output, enabling real-time monitoring of circuit insulation status to meet stringent international safety regulations and protect end users.

Optimized for Mode 2 and Mode 3 EV charging systems and On-Board Charger (OBC) applications, the MD0630 Series combines accuracy, ruggedness, and compliance in a compact modular package. The MD0630 Series is a residual current sensor that provides digital leakage current monitoring and independent digital alarms for AC and DC thresholds.

The MD0630 series offers the following benefits:

Rated up to 22 kW / 32 A AC charging

Single-phase: up to 80 A | Three-phase: up to 40 A

Real-time digital outputs for AC and DC residual current monitoring

Independent alarm outputs for seamless integration

Self-test pins for diagnostic cycles without interrupting the load

Multi-standard certifications ensure global compatibility

Compliant with the following standards and certifications:

IEC 62955:2018 (RDC-MD)

IEC 62752

UL 2231-2

CE-EMC/TUV/RoHS

The MD0630 series features selectable leakage detection thresholds (AC: 20/30 mA, DC: 6 mA) to comply with global Electric Vehicle Charging Equipment (EVSE) regulations while reducing false triggering through accurate phase detection and a comprehensive self-test routine.

The MD0630 series extends beyond traditional EV charging:

Vehicle-to-Load (V2L): Ensures the safety of AC outlets powering a variety of appliances directly from an EV.

Vehicle-to-Grid (V2G): Supports three-phase power transmission to release power back to the home and the grid.

Yageo also plans to launch a new series with full three-phase RCD detection to meet the needs of V2L and V2G with higher performance and reliability.