Electrical Connection SMA America, LLC
52 SB50US-80US-eng-IUS112633 Installation Guide
Negative Grounding
9. Tighten all cables in the terminal blocks in the SMA DC Disconnect with a torque of 15 in-
lb s .
(1.7 Nm).
In order to check whether your inverter is grounded as intended, please observe section
6.5.2 ”DC Input Grounding” (page 49).
7. Connect the positive DC cables to the terminal (A)
labeled PV UNGROUNDED in the SMA DC
Disconnect.
8. Connect the negative DC cables to the terminal (A)
labeled PV GROUNDED in the SMA DC Disconnect.
10. Using a screwdriver, make a hole in the left sealing
grommet.
11. Remove the rubber membrane.
To Next Page
Loading...
