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The DaheimLader LastManager - combined overload management and intelligent PV charging

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DaheimLaden LastManager - easy installation on DIN rail
DaheimLaden LastManager - easy installation on the DIN rail in the power distribution

As an alternative to our cloud-based load management, as well as the PV surplus charging module based on Powerfox and evcc.io , which is delivered free of charge with all DaheimLaden EV chargers, we also offer a hardware-based load management system - the DaheimLaden LastManager. The LastManager is available in our online shop for a price of €449.00.


The highlights of LastManager include:


  • Overload management of up to 6 DaheimLaden EV chargers (Smart & Touch) per load manager (linearly scalable)

  • PV surplus charging for up to 6 DaheimLaden EV chargers (including hybrid mode)

  • maximum load of 63A with direct load on the load manager, connection and measurement by external current transformers at higher loads

  • Installation on the DIN rail (4 units)

  • Pure offline operation possible

  • With Internet connection, additional use of all DaheimLaden software features

  • Connection Cat7 cabling (additional router required)

  • Connection & control of EV charger via LAN / WLAN (no additional control cables required)

  • Development & Production - made in Germany

  • personal German-speaking DaheimLaden customer support

  • 2-year product warranty


About the DaheimLaden LastManager


The DaheimLaden LastManager is installed locally on the DIN rail in the meter cabinet and can take over the EV charger power management independently - an internet connection is not necessary for operation and control. Up to 6 DaheimLaden EV chargers can be connected to a single meter panel and operated with a maximum output of 43kW / 63A.


Transformer measurements with external current transformers can also be used for the installation of additional EV chargers.


The DaheimLaden LastManager, developed and manufactured in Germany, combines overload management and PV surplus charging in one device.


functions of the LastManager


The DaheimLaden LastManager is used to control several DaheimLaden EV chargers and is able to independently distribute the charging current for a maximum of 6 DaheimLaden EV chargers. The maximum charging current can be limited ( load management ) and PV power produced on site can be specifically distributed to several electrified vehicles ( PV surplus charging ).


The LastManager functions both as a measuring device (smart meter) and as a EV charger control unit . Using the measuring function, the LastManager can measure the current power load as well as power production (in PV systems) and distribute the maximum charging power equally to the connected vehicles.


Optionally, the DaheimLaden load manager can be operated with all common current transformers . Rogowski coils are excluded (since Rogowski coils deliver a voltage at the output and not a current). We have good experience with ABB (CM-CT) and MBS (KBR) current transformers and use these in our product tests and software development. For better measurement accuracy, the use of a current transformer with a secondary current of 5A is recommended.


The control unit of the LastManager communicates with the DaheimLaden EV chargers via a local network connection and implements the control commands. This primarily includes starting, stopping and pausing charging processes. The LastManager also continuously regulates the charging current to be used by the EV charger. The connection between the LastManager and the EV charger(s) is made using local star-shaped LAN cabling (based on the TCP standard).


With an Internet connection, the other DaheimLaden software functions can also be used in addition to the LastManager (e.g. evaluations (per user / vehicle), charging timer, remote start/stop, etc.).


The DaheimLaden LastManager software modules


The LastManager shows the local energy balance in real time on the dashboard . The respective phase values are also shown in real time. The SmartMeter shows the active power and active energy. The DaheimLaden EV chargers are set up, displayed and controlled in the EV charger module.


Dashboard - all performance data at a glance
Dashboard - all performance data at a glance

Smart Meter - Monitoring of performance per phase in real time
Smart Meter - Monitoring of performance per phase in real time

Wallbox Monitor - intelligent control of multiple wallboxes
EV charger Monitor - intelligent control of multiple EV chargers

Wallbox charging mode - the operating mode can be easily switched between PV charging, grid charging and hybrid charging
EV charger - charging mode - the operating mode can be easily switched between PV charging, grid charging and hybrid charging

Are you interested in more details?


The technical data, example connection plans and the installation steps can be found in our manual:




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