Safe installation: Solar, batteries and EV charging

⚠️ Important

  • 230/400 V AC and high DC voltage are dangerous. A qualified electrician must perform fixed electrical connections, select protection and carry out checks.
  • Illuminated solar panels produce voltage after mains disconnection; batteries and backup supplies may continue powering the system.
  • Do not open enclosures, touch exposed contacts or disconnect solar DC connectors under load. Switching off through an app does not provide safe electrical isolation.

What to know before buying

Check the number of phases, available current in amperes, power in kilowatts and distribution board space. Match the charger to the vehicle connector and onboard charger capabilities; load management helps prevent overloading the building supply. The electrician selects dedicated circuits, cables, circuit breakers, earthing and residual current protection. Charger RCD selection also depends on built-in 6 mA DC leakage protection: typically Type A with this protection, or Type B, following the instructions.

Panel string voltage in cold weather and current must remain within inverter input limits. Battery voltage, chemistry and BMS communication must be compatible with the inverter. Consider operating temperatures, ventilation, moisture protection and service clearances. Agree grid-connected generation with the distribution system operator beforehand.

What the electrician does

  1. Isolates all supplies, prevents reconnection, observes the manufacturer's discharge time and verifies absence of voltage at the work area; treats illuminated panel circuits as live.
  2. Checks building wiring, earthing, supply capacity and planned protection.
  3. Secures equipment with ventilation, maintenance access and cable protection against damage.
  4. Checks DC polarity and uses mutually compatible connectors, suitable cables and DC isolators.
  5. Connects AC circuits, batteries, BMS communication and load measurement according to the manufacturer's diagram.
  6. Performs electrical measurements, tests protection and backup supply separation from the grid; hands over the system with clear shutdown instructions.

What you can do yourself

After commissioning, connect the app and network, configure charging schedules and scenarios. Monitor notifications, energy flows and visible damage. Do not change current limits or grid protection settings established by the electrician.

Common mistakes

  • Assuming mains disconnection also isolates panels and batteries.
  • Mating incompatible DC connectors or disconnecting them under load.
  • Ignoring increased panel voltage in cold weather.
  • Connecting an incompatible battery or blocking ventilation openings.
  • Using an extension lead or unsuitable residual current protection for charging.

When to disconnect power immediately

Stop use if you notice burning smells, sparking contacts, damaged cables, water inside equipment or battery swelling. Operate designated shutdown switches only if safely accessible. Do not touch damaged equipment or restart it. If there is smoke, hissing or fire, move away, warn others and call 112.

See the manufacturer's instructions for the exact wiring diagram (link on the product page). You can order installation from us.

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