Chapter 3: Power Optimizer Installation
SolarEdge Power Optimizers Installation Guide – MAN-01-00112-1.2
Step 2, Connecting a Module to a Power Optimizer
Connect the Plus (+) output connector of the module to the Plus (+) input connector of the power
optimizer. Connect the Minus (-) output connector of the module to the Minus (-) input connector of the
power optimizer.
The power optimizer input cables are the short
ones. Do not connect modules to power optimizer outputs.
Figure 6: Power optimizer connectors
Step 3, Connecting Power Optimizers in Strings
► To connect a string of modules:
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 way.
3 While the modules are exposed to sunlight, verify correct polarity by measuring the string polarity
with a voltmeter.
Figure 7: Power optimizers connected in series