A smart charging solution. Clever load management

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Do you want to charge multiple electric and hybrid vehicles rapidly?

No problem. The Heidelberg Wallbox Energy Control makes it possible. Thanks to local load management, multiple networked wallboxes can distribute the charging current to up to 16 vehicles. Are you wondering if a local load management for wallboxes and charging stations makes sense?

The answer is very clearly yes. This is because, on the one hand, the demand for electric vehicles will also increase enormously in the future. On the other hand, most buildings with their present electrical infrastructure are not prepared for the high charging capacities. As a result, overloads will occur quickly in the power grid, and both peak loads and the price of electricity will increase. Energy Control provides assistance and distributes the electricity powerfully and with pinpoint accuracy.

Efficient charging technology

For multiple electric and hybrid vehicles

Local load management for up to 16 wallboxes
Suitable for blocks of flats as well as company and hotel car parks
Connection to a home energy management system (HEMS)
Simple installation by your electrician
Without follow-up costs, because it’s maintenance-free
Environmentally friendly and efficient power consumption

The technical highlights of Heidelberg Wallbox Energy Control

  • Local load management starting from two networked wallboxes.
  • Networking of up to 16 wallboxes.
  • Modbus RTU for external load management (e.g. via an HEMS).
  • High-quality, robust stainless steel front.
  • Rated current (adjustable): 6 to 16 amperes.
  • Connection to 230 volts (one-phase) or 400 volts (three-phase).
  • Integrated residual current detection: DC 6 mA in accordance with IEC62955.
  • Optional access control via control element, e.g. RFID, key switch, etc.
  • Charging cable connection: Type 2.

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Connect smoothly and expand flexibly

If the wallboxes are incorporated into a Home Energy Management System (HEMS), the charging system can be managed easily and conveniently. Depending on the manufacturer, there are also various apps available for cost management or to monitor charging processes. The wallbox can be locked externally to protect against unauthorised charging.

Efficient use of solar power

The Heidelberg Wallbox Energy Control is perfect when photovoltaics are used for domestic electricity generation, as the wallbox can be connected to an existing on-site Home Energy Management System (HEMS) via Modbus RTU. Surplus electricity from the photovoltaic system is then used specifically to charge your electric or hybrid vehicle. And the system will only direct as much solar power to the wallbox as is currently available.

Charging technology made in Germany

The brand HEIDELBERG has stood for quality and sustainability in the global printing industry for more than 170 years. But we are also making an impression in the field of electric mobility with innovative, customer-oriented solutions. We have now given our activities in this area, which we have been engaged in since 2014, a name – HEIDELBERG AMPERFIED. The wholly owned subsidiary founded in April 2022 stands for smart charging technology made in Germany, and aspires to being a trustworthy and reliable partner on the way to the future of electric mobility.

Are you interested in HEIDELBERG AMPERFIED charging solutions for companies?


load management

We know: Thanks to local load management, multiple networked Heidelberg Energy Control Wallboxes distribute the charging current to up to 16 electric and hybrid vehicles – fully automatically.

As soon as an EV is fully charged, it continues, if necessary, to be supplied with sufficient electricity, for example to keep the stationary heating or air conditioning running. The current that has been freed flows into the batteries of the other vehicles.

Example of 22 kW for 5 wallboxes

Example of 22 kW for 5 wallboxes – load management when the charging process ends



RegulationsEN61851-1; EN61439-7
Charging capacityadjustable up to 11 kW
Rated voltage230 V – 400 V
Rated currentup to 16 A (adjustable from 6 A to 16 A in 2 A increments)
Rated frequency50 Hz
Charging mode1-, 2- or 3-phase
Network typesTT/TN
Connection technologySpring clamp technology (2.5 mm² to 6 mm²)
Cable entrySurface or flush-mounted – 9 to 17 mm
Connection cross section1 mm² to 10 mm² – Single-wire conductor (rigid)
1 mm² to 10 mm² – Finely stranded conductor (flexible)
1 mm² to 6 mm² – Finely stranded conductor with wire end ferrule (flexible)
The relevant national installation regulations must be observed.
Charging connector/couplerType 2
Charging cable length (m)5 m / 7.5 m
Status informationFront lighting
Data interfacesRS485/ModBus RTU
External release/blocking of the wallboxExternal RFID module, key switch, ripple control signal mains-supplied charging
(maximum charging current/reduced charging 8A) or via Modbus RTU.
Protection ratingIP54 (splashproof)
Residual current detection6mA DC in accordance with IEC62955
Protection against mechanical impactIK08
Operating temperature range (°C)–25°C to +40°C
Temperature behaviourThe charging current is made available permanently within the operating temperature range. If the temperature is exceeded, the charging process is interrupted. The charging process than restarts automatically following a cooling period.
Storage temperature range (°C)–25 °C to +80 °C
Permissible relative humidity (%)5 % to 95 %
Altitude (m)Max. 3000 metres above sea level
Protection classI
Overvoltage categoryIII
Dimensions (W × H × D) (mm)386 mm × 295 mm × 112 mm
WeightApprox. 8 kg


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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