Electrical Connection SMA Solar Technology AG
38 SB20_25_30HF-IEN102911 Installation Guide
6 Electrical Connection
6.1 Overview of the Connection Area
The following figure shows the assignment of the individual connection areas on the bottom of the
inverter.
Object Description
A DC connectors ( + ) for connecting the PV strings
B DC connectors ( − ) for connecting the PV strings
C Slot for the communication module (Quick Module / RS485 Quick Module)
D Slot for optional grounding with protective cap
E Socket for the AC connection plug
F Socket for the connection of the Electronic Solar Switch (ESS)
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