SMA SUNNY ISLAND 6.0H - Information Page for Self-Consumption;Backup

4 Circuitry of Multicluster Systems
SMA Solar Technology AG
System Description 21SI44M-80H-13-MC-IA-en-10
4 Circuitry of Multicluster Systems
4.1 Connecting the Master in the MainCluster
NO C NC
Relay 1
NO C NC
Relay 2
A
B
C
D E F
G
H I
J
K
L
M
N
O
Figure 6: Connecting the master in the maincluster
Position Designation Description / information
A Cable for the control voltage
SunnyIsland: connection AC1Loads/SunnyBoys terminals L and
N
Multicluster-Box: connection X106 terminals 1, 2 and 4
Conductor cross-section: from 1.5 mm
2
to 2.5mm
2
B AC power cable
SunnyIsland: connection to AC2 Gen/Grid terminals L, N and
grounding conductor
Multicluster-Box: connection X105 terminals 1, 4 and 7
Conductor cross-section: from 10 mm
2
to 16mm
2
Use the ferrite included in the delivery for the PE.
C Measuring cable for voltage
measurement
SunnyIsland: connection ExtVtg terminals L and N
Multicluster-Box: connection X112 terminals 3 and 4
Conductor cross-section: from 1.5mm
2
to 2.5mm
2
D 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
E DC- cable