PV connection options
The inverter features either 3 PV inputs (SBSE3.8-US-50 / SBSE4.8-US-50 / SBSE5.8-US-50 / SBSE7.7-US-50) or 4 PV inputs (SBSE9.6-US-50 / SBSE11.5-US-50), depending on the power class. In normal operation, one string can be connected to each PV input.
You have the option of operating the PV inputs A and B for all power classes in parallel, and therefore of connecting more strings to the inverter. For SBSE9.6-US-50 / SBSE11.5-US-50, PV inputs C and D can be connected in parallel either instead of or in addition to PV inputs A and B. It is important to note that the maximum short-circuit current per input and for all inputs combined must still be observed. By connecting 2 inputs in parallel, twice the value of the maximum short-circuit current per input can be achieved. This can result in PV modules no longer being able to be connected to the remaining inputs as the maximum short-circuit current for all inputs combined has already been utilized.
Connection overview for normal operation
Connection overview for parallel connection of inputs A/B and C/D
Also see: