ENENElectrical connectionPage 16 KACO Operating Instructions blueplanet 15.0-20.0 TL3Authorised electricianCAUTIONProperty damage as a result of condensationDuring pre-assembly of the inverters, moisture can penetrate into the interior via the DC plug connec-tors and the dust-protected threaded connections. The resulting condensate can cause damage to theunit during installation and start-up.ඣ Keep the unit closed during pre-assembly and do not open the connection area until you performinstallation.› Use sealing covers to seal off all plug connectors and threaded connections.› Prior to installation, check the inner area for condensation and if necessary, allow it to dry sufficientlybefore installation.› Immediately remove any moisture from the housing.7 Electrical connectionDANGERLethal voltages are still present in the terminals and cables of the inverter even after theinverter has been switched off and disconnected!Severe injuries or death will occur when touching the cables and terminals in the inverter.› Only appropriately qualified and authorised electricians may open and install the inverter.› Observe all safety regulations and the current technical connection specifications from the relevantpower supply company.› The inverter must be mounted in a fixed position before being connected electrically.› Disconnect the AC and DC side.› Secure the inverter against reconnection.› Ensure that the AC and DC sides are completely voltage free.7.1 Preparing the AC connection7.1.1 Open connection area3 21Figure 12: Connection area: Open connection coverKey1 Connection cover 3 Screws for mounting (short)2 Screws for mounting (long)