8 Electrical Connection
SMA Solar Technology AG
Operating manual STP110-60-BE-en-16 37
8.2 Overview of the Connection Area
8.2.1 View from Below
ON
OFF
ON
OFF
ON
OFF
ON
OFF
DC SWITCH 1
DC SWITCH 2
DC SWITCH 3
DC SWITCH 4
COM 4
COM 1
COM 2
COM 3
+
1
+
3
+
5
+
2
+
4
+
6
+
7
+
10
+
11
+
8
+
9
+
12
1
_
3
_
5
_
2
_
4
_
6
_
7
_
10
_
11
_
8
_
9
_
12
_
A
B
A
C
D
Figure 7: Enclosure openings at the bottom of the inverter
Position Designation
A DC load-break switch
B Positive and negative connectors for DC connection
C Cable gland for connecting the communication
D Cable gland for the AC connection
8.2.2 Interior View
Figure 8: Connection areas in the interior of the inverter
Position Designation
A AC connection area
B Connection for Ethernet communication