Residual current monitoring for charging stations and home charging stations

Residual current monitoring

Increased availability, less servicing

RCM modules for monitoring AC charging points for residual currents.

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Our RCM (Residual Current Monitoring) modules continuously monitor AC charging points in accordance with IEC 62752 for AC and DC residual currents, thereby increasing electrical safety. In the event of a fault, the module aborts the charging process and protects the electric vehicle and charging station. Once the residual current is no longer present, the module automatically resets the charging controller. This increases the availability of the charging station and prevents cost-intensive servicing. In addition, there is no need for an expensive type B residual current device.

Your advantages:

  • Increased availability and service life of charging points with continuous residual current monitoring
  • Universal residual current detection with just one measuring transducer
  • Use and continued operation of a cost-effective type A residual current device possible
  • Convenient state monitoring and automatic reset in the event of errors (in combination with Phoenix Contact charging controllers)

Single-channel residual current monitoring module

Single-channel RCM module for residual current monitoring of a charging point  

Single-channel residual current monitoring module

The single-channel EV RCM Basic module with one measuring sensor is specifically designed for a single charging point. In conjunction with type A residual current safety devices, this version is ideal for use in simple charging points for home use.

Application example: Home charging station

Illustration of the setup of a home charging station with residual current monitoring  

Setup of a home charging station with residual current monitoring

A home charging station can detect residual currents using a single-channel RCM module and use this information to shut off the charging point. This ensures the long-term durability of a compact charging point for home use.

Two-channel residual current monitoring module

Two-channel RCM module for residual current monitoring of two separate charging points  

Two-channel residual current monitoring module

The two-channel EV RCM Compact module is used for universal residual current detection for two separate charging points in one charging station. The separate monitoring using two measuring sensors increases the availability of charging points in a commercial environment. Save space and money with separate signal evaluation in one RCM unit.

Application example: Commercial charging points

Illustration of the setup of a charging station with separate charging points and residual current monitoring  

Charging infrastructure with two-channel RCM module

A two-channel RCM module provides the option of monitoring two separate charging points within a charging station separately from each for potential residual currents. Operators of commercial charging infrastructures thus benefit from increased availability.

Advantages in combination with Phoenix Contact charging controllers

EVCC Basic and EVCC Advanced charging controllers  

EVCC Basic and EVCC Advanced charging controllers

Connecting the RCM modules to the EV Charge Control Basic or EV Charge Control Advanced charging controllers from Phoenix Contact enables convenient state monitoring as well as automatic resetting as soon as the residual current is no longer present.

As a result, you avoid costly servicing and ensure that the charging point is immediately available again for further charging processes. Furthermore, you achieve the required protection against electric shock when charging electric vehicles in accordance with IEC 61851-1 and DIN VDE 0100-722.

Phoenix Contact UAB

Svitrigailos str. 11B
03228 Vilnius
+370 5 210 6321

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