SMA SUNNY BOY 4000-US - Connecting the AC Cables to the DC Disconnect

6 Electrical Connection SMA America, LLC
40 SB30-40-US-IA-en-33 Installation Manual
6.3.2 Connecting the AC Cables to the DC Disconnect
Figure 15: AC connecting terminal plate for connecting the power distribution grid
1. Connect conductor L1 to screw terminal "L1" (torque: 15 in-lb. (1.7 Nm)).
2. Connect conductor L2 to screw terminal "L2" (torque: 15 in-lb. (1.7 Nm)).
3. Connect conductor N to screw terminal "N" (torque: 15 in-lb. (1.7 Nm)).
4. Connect the AC protective conductor to screw terminal (torque: 15 in-lb. (1.7 Nm)).
5. Ensure that all screw terminals are correctly cabled and that the cables are securely positioned
in the screw terminals.
Position Designation
A Screw terminal "L1"
B Screw terminal "L2"
C Screw terminal "N"
D Screw terminal