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  • MD0630T41A-1 EN61851-1 EVSE RCD RCMU Protection Residual Current Monitoring Unit for AC Wallbox Charger
  • MD0630T41A-1 EN61851-1 EVSE RCD RCMU Protection Residual Current Monitoring Unit for AC Wallbox Charger
  • MD0630T41A-1 EN61851-1 EVSE RCD RCMU Protection Residual Current Monitoring Unit for AC Wallbox Charger

MD0630T41A-1 EN61851-1 EVSE RCD RCMU Protection Residual Current Monitoring Unit for AC Wallbox Charger

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Product parameters

Product Details

MD0630T41A-1 is a residual current monitoring unit(RCMU). It has the characteristics of high sensitivity, correct measurement, small size and compact/integration design. The residual current monitor can be set separately for AC and DC leakage. When leakage current is detected, an alarm signal is generated, and the switch control signal is output at the same time. The RCMU is connected in series with the AC supply to an EV and will provide a signal output if a DC current ≥ 6mA DC flows in the circuit. It can monitor DC (6mA) and AC (30mA) residual currents, and will signal to the Smart EVSE if a fault occurs.


MD0630T41A-1 is designed for use in e-mobility infrastructure and AC charging station designs to monitor leakage currents in mode two/three/four electric vehicle charging. It is suited for AC/DC residual current measurement, identifying AC and DC residual (earth fault) currents in combination with charge controllers and residual current monitoring modules.

This new current sensor is practical and more cost effective for integrators to use and install into charging solutions. It measures currents in accordance with IEC 62752 and 62955, ensuring safe, compliant charging.

In addition to normal AC, can detect high-frequency AC and pure DC earth leakage currents. The tripping conditions are defined with different frequencies from 50Hz to 1kHz. Reducing the risk of fire or electrocution through output digital alarm signal. MD series Type B RCD is an ideal protection device against different leakage currents in applications of electric vehicle charging, photovoltaic systems (solar panels), industrial device, medical device, new energy, DC screen, fire distribution cabinet, IOT field etc.


MD0630T41A-1 EN61851-1 EVSE RCD RCMU Protection Residual Current Monitoring Unit for AC Wallbox Charger


Product Feature

1. Fixed 6mA DC and 30mA AC trip levels; B Type Leakage Protection

2. Small Size, Integration Design, Vertical(Pin Type)/Horizontal(Cable Type) Mounting Optional

3. Integrated self-monitoring and test functions, Digital Output

4. AC DC Leakage Data Readable; Alarm Value Programmable; 3 Way Alarm Outputs

5. With UART Comm and Modbus Protocol; Standard: EN 61000-6-3:2007+A1 ,EN IEC 61000-6-1:2019

6. Professional Certification: TUV(IEC62955/IEC62752/IEC61851-1/IEC62196); UL 2231-1/UL 2231-2; CE-EMC 

7. EV Charger RCMU Protection (Full load current single phase up to 200A or three phase up to 150A)


Product Parameters

Wide voltage input: 12V±20%

Measuring current range: DC current 2-15mA; AC current 3-100mA (default threshold: DC 6mA, AC 30mA)

Accuracy class: at 25℃, DC±0,2mA, AC±0.3mA

Working environment temperature: -25℃~+80℃

Installation: Cable Type

Plastic casing: SIP encapsulation


EV Charging Application

Charging mode 2

IC-CPD in charging cables for electric vehicles (EV) and plug-in hybrid electric vehicles (PHEV)

Charging mode 3

Wallboxes for charging EV and PHEV

Charging piles for charging EV and PHEV

Charging mode 4

DC Charger


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