SMA ST6-US - Manual (Page 31)

SMA America, LLC Electrical connection
Installation Guide ST36-48US-IA-IUS112321 31
3. PV hot (PV ungrounded) conductors should be connected to the fuse holders.
PV return (PV grounded) conductors should be connected to the associated terminal blocks.
Position Installed Sunny Boy PV Connection
A Sunny Boy 1 PV return
B Sunny Boy 1 PV hot
C Sunny Boy 2 PV return
D Sunny Boy 2 PV hot
E Sunny Boy 3 PV return
F Sunny Boy 3 PV hot
G Sunny Boy 4 PV hot
H Sunny Boy 4 PV return
I Sunny Boy 5 PV hot
K Sunny Boy 5 PV return
L Sunny Boy 6 PV hot
M Sunny Boy 6 PV return