SolarEdge StorEdge Installation Manual page 16

Position the power optimizer close enough to its module so that their cables can be
connected.
Make sure to use power optimizers that have the required output conductor length:
Do not use extension cables between a module and a power optimizer,
between two modules connected to the same optimizer, or between two
optimizers other than in the cases specified below.
You can use extension cables between power optimizers only from row to row,
around obstacles or pathways within a row, and from the end of the string to
the inverter, as long as the maximum distance is not exceeded.
Completely shaded modules may cause their power optimizers to temporarily shut
down. This will not affect the performance of the other power optimizers in the
string, as long as the minimum number of unshaded power optimizers connected in
a string of modules is met. If under typical conditions fewer than the minimum
optimizers are connected to unshaded modules, add more optimizers to the string.
To allow for heat dissipation, maintain a minimum of 2.5 cm / 1" clearance between
the power optimizer and other surfaces, on all sides except the mounting bracket
side.
When installing modules in a confined space, for example, if installing Building-
integrated photovoltaic (BIPV) modules, ventilation measures may be needed to
ensure the power optimizers are not be exposed to temperatures outside their
specifications.
StorEdge Three Phase Inverter Installation Guide MAN-01-00648-1.1
Chapter 2: Installing the Power Optimisers
Figure 2: Power optimizer clearance
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