Intelligent control and networking of wallboxes

The Combox Lite communicates with up to 16 Heidelberg Energy Control Wallboxes, networks them, and thus controls the static load management. With the Combox Complete, the dynamic load management of the entire vehicle fleet also. The user-friendly software monitors and analyzes the wallboxes and charging processes reliably and effectively. The current charging status or error diagnoses can also be viewed at any time. The Combox Lite is a control unit that can be installed directly in the base cabinet or switching cabinet.

Intelligent control and

networking of the wallbox

Intelligent control for load management
Easy and intuitive monitoring as well as analysis of the charging process
Trouble-free connection to the back end (via OCPP 1.6)
Display of the current charging status and diagnostic data
User-friendly software including updates
High-quality production according to the zero-defect principle

Technical highlights of the Combox Lite

  • Networks up to 16 wallboxes (Heidelberg Energy Control).
  • Controls the static and dynamic load management (with Combox Complete).
  • Connection to 230 volts.
  • Web interface in case of connection to a back end (via OCPP 1.6) for monitoring and analysis of the wallboxes and charging processes (remote).
  • Reading of diagnostic data.
  • Central installation of software updates for the wallbox network.

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Static load management with Heidelberg Combox Lite

The Combox Lite communicates as a control unit with up to 16 Heidelberg Energy Control Wallboxes and networks these devices in a user friendly manner. Once the building's maximum grid connection capacity has been saved in the web interface for the Combox Lite, the total current is distributed equally. The Combox Lite is installed directly in the main distribution board or in a sub-distribution board.

Dynamic load management with the Heidelberg Combox Complete

Dynamic load management is easy with the Heidelberg Combox Complete. This bundle comprises a Combox Lite, a measuring instrument, a communication module and measuring current transformers. The user-friendly software monitors and analyzes the wallboxes and charging processes reliably and intuitively. The Combox Lite web interface provides a status and diagnostics overview and allows you to access the charging process at any time.

At the same time, you can roll out any necessary software updates centrally to the wallbox network. You can also view the current charging status or the diagnosed errors at any time. The open charge point protocol OCPP 1.6 enables you to connect to a cloud-based backend system. As a result, you have remote access to the charging infrastructure at any time and from anywhere (e.g. via an app).

That's how it works

Dynamic load management

  • The current electricity consumption of a building is measured at the connection to the grid, which allows
    the amount of charging power available to be adjusted accordingly.
  • If the electricity consumption in the building drops, the charging power for the vehicles increases. The
    same is true in reverse. For this control process, the Combox Lite can be connected with a measuring
    instrument to determine the electricity consumption in the building.
  • The information about the maximum charging current is sent to the Combox Lite via the LAN interface
    and distributed to the wallboxes that are currently charging a vehicle.
  • Benefit: avoiding load peaks and thus high costs for exceeding the grid capacity


Combox Lite & Combox Complete

Rated voltage230 V / 1 AC
Rated current0,5 A
Rated frequency50 Hz
Network typesTT/TN
Status information2 LEDs on the front of the gateway module (status and power)
Protection ratingInstallation in housing (min. IP54)
Protection against mechanical impact-
Operating temperature range (°C)-25 to +40
Permissible relative humidity (%)20 - 90
Protection classII
Overvoltage categoryII
Dimensions (W × H × D) (mm)200 × 65 × 130
Weight (kg)approx. 0.4


Around the world, for many years large auto brands and electrical companies have put their trust in the performance of our charging technologies. You can also rely on us!


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