SMA SUNNY BOY 5000-US Installation Manual page 52

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