SMA Technologie AG Electrical Connection
Installation Guide SB40TL_50TL-IEN081211 31
7. Pull cable through.
8. Flip up terminals of the AC terminal fully.
9. Connect L, N and the protective earth (PE) to the
AC terminal in accordance with the labels.
For this, the PE wire must be 5 mm longer than the
L and N wires!
L and N may not be swapped!
10. Close all terminals of the AC terminal again.
11. Screw the union nut of the screw clamp tightly to the cable opening again.
Seal in the screw clamp
There is a two-part seal in the screw clamp. If necessary,
the inner insert can be removed to insert a thicker cable.
The following guideline values apply:
• Cable cross section with both seals: 12 - 16 mm
• Cable cross section with outer seal only: 15 - 21 mm
CAUTION!
Danger of crushing when the terminals snap closed!
The terminals snap down rapidly and hard when closing.
• Press the terminals down with your thumb, do not grip the entire terminal on
all sides.
• You should not hold your fingers under the terminal.
DANGER!
Lethal danger caused by high voltages in the Sunny Boy!
• Do not switch on the line circuit breaker until the PV generator has been connected
and the Sunny Boy is securely closed.
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