Hi everyone,
I'd like to share my Home Assistant integration for the Mennekes AMTRON 4Business 730 wallbox (11kW), which communicates via Modbus TCP — no cloud, no app, fully local.
What it does
- Real-time monitoring: power, energy, current per phase, CP state
- Charging session history fetched directly from the wallbox REST API
- Vehicle tracking by RFID card — assign names to up to 4 vehicles
- ApexCharts stacked bar chart: monthly kWh per vehicle (last 6 months)
- Charge current control (6–32 A) directly from the dashboard
- 3-tab Lovelace dashboard: Live Monitoring / History / Configuration
Requirements
- Home Assistant ≥ 2022.11
- apexcharts-card via HACS
- Mennekes AMTRON 4Business with Modbus TCP enabled in firmware
Repository
https://github.com/nobelp/mennekes-amtron-ha
Includes full YAML configs, Python scripts, dashboard and screenshots.
A note on how this was built
I used AI assistance (Claude by Anthropic) throughout the development — for generating the Modbus register mappings, Python scripts, template sensors and dashboard YAML. The integration was tested and validated on my own setup. Happy to answer questions and improve it based on community feedback!
Feedback and questions welcome — especially from others running this wallbox model!