SMA POWER BALANCER - Manual (Page 22)

Wiring SMA America, LLC
22 SBUS-PowBal-IUS102810 Installation Guide
1. Open the 2 outside inverters as described in the Sunny Boy installation guide.
2. Remove 1 filler plug on the bottom right of the 2 outside inverters.
3. Insert cable glands into each opening and fasten
each with a lock nut.
4. Unscrew the cap nut of the installed cable glands a bit.
5. Thread a Power Balancer cable (C) through the cable glands into the 2 outside inverters.
6. Draw each cable up to the three-pole terminal block (A).
7. Tighten the cap nut of each cable gland in order to secure the Power Balancer cable.
8. Insert the conductors of the Power Balancer cable
into the spring clamp male connector.
– Red conductor into the middle terminal.
– Blue conductor into the right terminal.
– The left terminal remains unused.
9. Close all clamp terminals by pushing down the
levers.
10. Plug the spring clamp male connector (B) to the
three-pole terminal block (A).
Only use the cable end with the separate shield flat connector.