MD0630T01A-3 6mA DC 30mA AC Leakage Protection Residual Current Monitoring Differential Current Sensor

Product Introduction   

In alternating current charging stations permanently connected to the electricity grid (mode 3 according to the IEC 61851-1) the presence of a differential direct current detection device (RDC-DD) is required. This device must be able to interrupt the power supply to the electric vehicle (EV) in the event that this current is equal or higher than 6mA.

This monitoring device has to be made according to the IEC 62955 Standards and it is intended to guarantee the correct operation of the Type A or Type F differential protections installed upstream of the charging station. The differential protections could otherwise be” blinded” by the presence of an excessive direct current component. IVY has been a market leader in the field of differential protection for rencend years either for those devices sensitive to alternating current (Type A and Type F) or for those ones sensitive to direct current (Type B). Thanks to this experience, IVY has developed a Residual Current Monitoring Module (RCM/RCD). This module realizes the functionality of the Residual Direct Current Monitoring Device (RDC-MD) in full compliance with the aforementioned IEC62955 Standards.

Product Features         

• Fault current detection according to IEC Standard

• Frequency range DC up to 2 KHz 

• Load current up to 80 Arms (1-phase) or 3 x 32 Arms (3-phase) 

• Switching output for 6 mA DC and 30 mA AC 

• Integrated self-monitoring and test functions 

• Measurement resolution of 0.2 mA DC/0.3mA AC 

• Differential current range 2…100 mA 

• Robust mechanical design suitable for IC-CPD environmental requirements

• Total system cost significantly reduced compared to RCCB type B

Product Parameters

Product Dimension

Product Application

There are level 1, level 2, level 3, mode 2, mode 3, inductive, mode 4, which means ac-charging walloutlt IC-CPD, AC charging station, inductive charging, DC-charging etc. The power class is 1ph 16A, 3ph 16A, 3ph 32A, 3 ph 63A etc, The Residual Current Monitor (RCM) module is connected in series with the AC supply to an EV and will provide an output if a fault DC current ≥ 6mA DC flows in the circuit or fault AC current ≥30mA AC flows in the circuits. This output can be used to operate an RCD, a circuit breaker or a contactor to remove the supply to the EV.