SolarEdge SE50K Installation Manual page 17

Step 3: Connecting Power Optimizers in Strings
NOTE
The DC bus of each unit is separate and not shared for all units. Therefore in addition to following the
inverter design rules, each unit should follow the unit design rules as detailed in Technical
Specifications on page 1
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.
3. If you intend to monitor the installation, using the SolarEdge monitoring platform, record the
physical location of each power optimizer, as described in Providing Installation Information on page 45.
WARNING!
Input and output connectors are not watertight until mated. Open connectors should be mated to
each other or plugged with appropriate watertight caps.
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Extended Power Commercial Inverter Installation Guide MAN-01-00402-1.0
Figure 5: Power optimizers connected in series