SMA Off-Grid Systems - Manual (Page 26)

5 Single-Cluster System SMA Solar Technology AG
26 Off-Grid-IS-en-30 Installation - Quick Reference Guide
5.3 Connecting the Sunny Island inverter
5.3.1 Connecting the Master
Figure 10: Connecting the master in the single-cluster system
Position Designation Description/information
A AC power cable of the
stand-alone grid
Sunny Island: connection to AC1 Loads/SunnyBoys terminals L, N,
and PE
Stand-alone grid: connect master to line conductor L1.
For a single-phase system, the cable length and the conductor
cross-section must be identical on each Sunny Island.
Conductor cross-section: maximum 16 mm²