SMA VOLTAGE STABILIZER - Manual (Page 20)

5 Electrical Connection SMA Solar Technology AG
20 Ukonstanter-IEN103610 Installation Guide
5.5 Connecting the Cables in the Sunny Central
Overview of the Connection Area in the Sunny Central
Figure 10: Connection terminal strip in the Sunny Central, examples shown here are for options 2/0 and 5/5
Connection to Terminals
• All connection terminals that are not being used must be screwed tightly.
• Strip 5 mm from the cable insulation.
• Observe the following torques when connecting the cables to the terminals:
Circuit Diagram
For all electrical connections, it is imperative that you use the provided Sunny Central circuit
diagram. The exact position of the terminal strip can be determined with the help of the
reference designation.
Object Description
A Temperature monitoring
B 230 V circuit
C 415 V circuit
M3 0.6 … 0.8 Nm
M4 1.5 … 1.8 Nm
M6 3.2 … 3.7 Nm
5 4 3 2 1 2 1
A C B
Z120
-X
120
Z121
-X
121