SolarEdge SE K Series Installation Manual page 25

24 Installation Guidelines
Between two PV modules connected in series to a Power Optimizer
When connecting two PV modules in series to supported Power Optimizers – an
extension cable may be installed between the two modules, if the following
conditions are met:
The total round-trip cable length between the (+) and the (-) input terminals of
the power optimizer (including the extension cable between the modules and
the module output cables) does not exceed 16m/52.5ft.
Supported Commercial Power Optimizers with the following part numbers are
used:
Pxxx-4xxxxxx (P Series with 4-type in part number suffix)
Sxxx-1xxxxxx (S Series with 1-type in part number suffix)
The connectors on each end of the extension cable must be identical to PV
module's output connectors.
NOTE
The extension cable between two modules is considered as auxiliary
equipment and is not covered by the SolarEdge warranty.
NOTE
When using a serial input optimizer for up to two modules connected in
series, and PV modules installed in landscape orientation, it is
recommended to use PV modules with long output cables to avoid the use
of an extension (jumper cable) between two modules.
"Modules with long output cables" refers to modules with longer cables
intended for landscape installation. The output cables length is usually
specified in the Mechanical Characteristics section of the PV Module
Datasheet.
For planning considerations when connecting multiple PV modules to an
Power Optimizer, refer to:
https://www.solaredge.com/sites/default/files/application-note-
connecting-solaredge-power-optimizers-to-multiple-pv-modules.pdf
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx