SMA SUNNY ISLAND 6.0H - Connecting Slave 2 in the Main Cluster

4 Circuitry of Multicluster Systems
SMA Solar Technology AG
System Description 25SI44M-80H-13-MC-IA-en-10
4.3 Connecting Slave 2 in the MainCluster
NO C NC
Relay 1
NO C NC
Relay 2
A
B
C
D E F
G
Figure 8: Connecting slave 2 in the maincluster
Position Designation Description / information
A AC power cable
SunnyIsland: connection to AC2 Gen/Grid terminals L, N and grounding
conductor
Multicluster-Box: connection X105 terminals 3, 6 and 9
Conductor cross-section: from 10mm
2
to 16mm
2
Only use the supplied ferrite for PE.
B Measuring cable for
voltage measurement
SunnyIsland: connection ExtVtg terminals L and N
Multicluster-Box: connection X112 terminals 9 and 10
Conductor cross-section: from 1.5mm
2
to 2.5mm
2
C DC+ cable Battery connection
Conductor cross-section: from 50mm
2
to 95mm
2
Cable diameters: 14mm to 25mm
Torque: 12Nm
D DC- cable
E Measuring cable
Sunny Island: terminal BackupVtgCur
Multicluster-Box: terminal Slv.2/L3