SolarEdge SE K Series Installation Manual page 16

Single Phase Inverters
All - 300 m
For connecting homerun DC cables from Power Optimisers to the inverter, use
cables with the following cross-sections:
For MC4 connectors:
For DC terminal blocks inside the inverter or Safety Unit (if applicable):
Frame-mounted Power Optimisers are mounted directly on the module frame,
regardless of racking system (rail-less or with rails). For installation of frame-
mounted Power Optimisers, refer to
http://www.solaredge.com/sites/default/files/installing_frame_mounted_power_
optimizers.pdf.
The Power Optimiser can be placed in any orientation.
If connecting more modules than Power Optimiser inputs in parallel, use a branch
cable. Some commercial Power Optimiser models have a dual input.
Position the Power Optimiser close enough to its module so that their cables can be
connected.
Make sure to use Power Optimisers that have the required output and input
conductor length.
Completely shaded modules may cause their Power Optimisers to temporarily shut
down. This will not affect the performance of the other Power Optimisers in the PV
string, as long as the minimum number of unshaded Power Optimisers connected in
a PV string of modules is met. If under typical conditions fewer than the minimum
Power Optimisers are connected to unshaded modules, add more Power Optimisers
to the PV string. To allow for heat dissipation, maintain clearance shown in
All Power Optimisers, except for the P860 and P960 Power Optimisers
Three Phase Inverters with Synergy Technology
Chapter 2: Installing the Power Optimisers
Three Phase Inverters
15