SMA ST6-US - Manual (Page 37)

SMA America, LLC Electrical connection
Installation Guide ST36-48US-IA-IUS112321 37
7.6.2 DC wiring of the SB 6000US/SB 7000US/SB 8000US
The Sunny Boy is configured for negative ground systems. Certain types of PV modules may require
that the positive terminal be grounded instead of the negative terminal. To configure the Sunny Boy
for positive ground, move the fuse (1) and change the jumper position (2) as shown in the following
illustrations.
Negative grounding
Following figure shows GFDI Fuse and Jumper Settings for negative grounding.
Positive grounding
Following figure shows GFDI Fuse and Jumper Settings for positive grounding.