The 3.8 kW variant has two maximum power point trackers (MPPTs), and therefore it can connect up to two DC inputs (on connectors labeled PV 1+ and 2+).

The 7.6 kW Solar Inverter has four MPPTs, and therefore it can connect to up to four DC inputs of flat PV panels or Solar Roof (on connectors labeled PV 1+, 2+, 3+, 4+).

1. Ensure the inverter is not connected to AC power.
2. If an external DC disconnect means is available, open the external DC disconnect switch.
3. Ensure that there is no voltage on the DC inputs of the inverter.
4. For each conductor:
   1. Strip the conductor insulation up to 10 mm (0.4 in). If the conductor is finely stranded, provide it with a ferrule.
   2. Insert a cabinet tip or electronics tip slotted screwdriver (up to 3.2 mm or 1/8-inch) into the actuation shaft to open the terminal.
   3. Insert the conductor as far as possible into the terminal and remove the screwdriver from the actuation shaft to close the terminal.

      

   4. Perform a pull test to ensure the conductor is fully seated in the terminal.

      

5. Connect the PV array equipment grounding conductor to an equipment grounding terminal in the Solar Inverter.

   

• Ensure the conductors are inserted into the terminal points (round openings) as far as they will go and not into the actuation shafts (rectangular openings)
• Ensure that the terminal points are allocated to the correct conductors
• Ensure that the conductors are plugged completely into the terminal points up to the insulation