SMA SUNNY BOY 4000-US - DC Connection with Additional DC Distribution

SMA America, LLC Electrical connection
Installation Guide SB30-40US-IUS103030 55
6.7.5 DC connection with additional DC distribution
Using spring terminal labeled COMBINED
1. Insert the screwdriver into the provided slot of the spring terminal.
2. Push the screwdriver up, the spring terminal is opened.
3. Insert the stripped cable into the spring terminal.
4. Return the screwdriver to its original position.
5. Remove the screwdriver. The spring terminal is closed and the cable is fastened.
Negative grounding
3. Torque all wires in the terminal blocks inside the SMA DC Disconnect to 15 in-lbs. (1.7 Nm).
1. Connect the positive DC wire to the terminal labeled
COMBINED in the SMA DC Disconnect.
2. Connect the negative DC wire to the terminal labeled PV
GROUNDED in the SMA DC Disconnect.
Positive DC wire
Negative DC wire