Keba Renault Zoe Wallbox Phase Switching Automation (1-Phase / 3-Phase Control)
This Node-RED flow automates phase switching for a Keba Wallbox (EV Charger) between 1-phase and 3-phase charging modes using the local REST API of the wallbox.
Main Features: Dynamic Phase Switching: Switches between 1-phase and 3-phase charging modes based on the state of an input_boolean in Home Assistant (input_boolean.keba_wallbox_3_phasen).
Authentication Handling: Performs an API login to the Keba Wallbox to get a valid access token (JWT), which is used for all further API calls.
Charging State Detection: Checks the current charging state of the Wallbox via Home Assistant (binary_sensor.keba_p30_charging_state), to avoid switching phases while the car is actively charging.
Fail-Safe Logic: Includes delays and retries to ensure stable phase switching behavior, with additional stop-charging commands if needed.
Integration with Home Assistant: Switches a Home Assistant switch entity (switch.keba_wallbox_phasen_switch_2) to signal the current active phase (for dashboard display or automation triggers).
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