SMA SI 3.0-11 Quick Reference Guide V.3.0 - Manual (Page 34)

5 Battery Backup Systems Without All-Pole Disconnection SMA Solar Technology AG
34 Ersatzstrom-IS-en-30 Installation - Quick Reference Guide
5.2 Three-Phase Battery Backup System
5.2.1 Schematic Diagram of the Automatic Transfer Switch
Figure 13: Schematic diagram of the three-phase automatic transfer switch without all-pole disconnection and optional SMA Energy Meter