SMA SUNNY BOY 5000-US Installation Manual page 50

Electrical Connection
Negative Grounding
In order to check whether your inverter is grounded as intended, observe section
6.6.2 "DC Input Grounding" (page 48).
7. Connect the positive DC cables to the terminal (A)
labeled PV UNGROUNDED in the DC disconnect.
8. Connect the negative DC cables to the terminal (A)
labeled PV GROUNDED in the DC disconnect.
9. Tighten all cables in the terminal blocks in the DC disconnect with a torque of 15 in‑lb. (1.7 Nm).
10. Using a screwdriver, make a hole in the left sealing
grommet.
11. Remove the rubber membrane.
50 SB50US-80US-IA-en-36
SMA America, LLC
2 3 5 7 A B + -
2 3 5 7 A B + -
Installation Manual