SMA AUTOMATIC SWITCH BOX L - Manual (Page 31)

SMA Solar Technology AG Electrical Connection
Installation Guide AS-BoxL-IEN084410 31
Connection procedure
1. Select suitable cable openings for the cables of the Sunny Backup and poke holes through them
with a pointy tool.
The cable has to be tightly enclosed by the opening after it is inserted.
2. Pull each cable through the respective opening into the Automatic Switch Box.
3. Connect PE and N of the Sunny Backup master to the "X2/SBU5000" connection terminal
according to the label.
4. Connect L of the Sunny Backup master to L1.
5. Connect PE and N of the Sunny Backup slave 1 to the "X2/SBU5000" connection terminal
according to the label.
6. Connect L of the Sunny Backup slave 1 to L2.
7. Connect PE and N of the Sunny Backup slave 2 to the "X2/SBU5000" connection terminal
according to the label.
8. Connect L of the Sunny Backup slave 2 to L3.
☑ The cable for the connection of the Sunny Backup is now connected.