Step 3: Connecting Power Optimizers In Strings - SolarEdge SE3K-RWB Installation Manual

Connect the Minus (-) output connector of the module to the Minus (-) input
connector of the power optimizer.

Step 3: Connecting Power Optimizers in Strings

You can construct parallel strings of unequal length, that is, the number
of power optimizers in each string does not have to be the same. The
minimum and maximum string lengths are specified in the power
optimizer datasheets. Refer to the
1. Connect the Minus (-) output connector of the string's first power optimizer to the
Plus (+) output connector of the string's second power optimizer.
2. Connect the rest of the power optimizers in the string in the same manner.
WARNING!
If using a dual-input power optimizer and some inputs are not used, seal the
unused input connectors with the supplied pair of seals.
Three Phase System MAN-01-00507-4.2
Chapter 2: Installing the Power Optimizer
Figure 6: Power optimizer connectors
Designer for string length verification.
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