SMA AUTOMATIC SWITCH BOX M-20 - Manual (Page 36)

5 Electrical Connection SMA Solar Technology AG
36 AS-BOX-M_L-IA-IEN110320 Installation Guide
Connection terminals:
1. Insert the cable (see section 5.2).
2. Connect PE to terminal strip "AS-X4/ PV System". Take the labeling on the connection terminals
into account.
3. Connect N to terminal strip "AS-X4/ PV System". Take the labeling on the connection terminals
into account.
4. If you use the Automatic Switch Box M, connect L to terminal strip "L1" of the connection terminal
"AS-X4/ PV System".
5. If you use the Automatic Switch Box L, connect L1, L2 and L3 to the terminal strip
"AS-X4/ PV System". Take the labeling on the connection terminals into account.
Displayed graphic
As an example, only the Automatic Switch Box L will be graphically displayed in this section.
The labeling of the connection terminals as well as the procedure for connecting the
Automatic Switch Box M is identical.