SMA SI 3.0-11 Quick Reference Guide V.3.0 - Manual (Page 24)

4 Battery Backup Systems With All-Pole Disconnection SMA Solar Technology AG
24 Ersatzstrom-IS-en-30 Installation - Quick Reference Guide
4.2 Three-Phase Battery Backup System
4.2.1 Schematic Diagram of the Automatic Transfer Switch
Figure 6: Schematic diagram of the three-phase automatic transfer switch with all-pole disconnection and optional SMA Energy Meter