SMA Sunny Island 2012 Technical Description page 49

SMA Solar Technology AG
6. Fasten the protective earth (PE) cable onto the spring type terminal. Use a slot screwdriver (see
figure below).
- Stick the screwdriver into the spring type terminal's slit.
- Push the screwdriver upward. The spring type terminal is now open.
- Introduce the stripped PE cable into the terminal (round opening).
- Return the screwdriver to its original position. The spring type terminal is closed and the PE
cable is installed firmly.
7. Connect the N and L cables according to the labeling on the AC1 terminal connectors
"L" and "N" must not be swapped!
CAUTION!
Danger of crushing due to the terminal connectors snapping shut!
When closing, the terminal connectors snap back very fast and with force.
• Flick the clamps back down with care.
• Press down on the clamps with the thumb, and do not take hold of the whole clamp.
• Keep the fingers away from the range of motion of the clamp as it snaps down!
8. Tighten the cable screw joint's lock nut firmly.
Connection in a Single-Phase Parallel System
In a single phase system, connect all Sunny Boys using the same cable cross-sections and
lengths.
Technical Description
Sunny Island Electrical Connection
SI2012_2224-TEN082311 49