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1 connection of the ac output, Connection of the ac output – SMA SB 3300TL HC User Manual

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Electrical Connection

SMA Solar Technology AG

18

SB3300TLHC-IEN094121

Installation Guide

5.2.1 Connection of the AC Output

To connect the AC cable, proceed as follows:

1. Check the grid voltage. Complying with DIN VDE 0126-1-1, the Sunny Boy will not be fully

operational if the grid voltage is constantly higher than 253 V. In this case, contact the local
grid operator for assistance. The inverter can temporarily feed power into the grid with a
maximum output voltage of 260 V. However, the 10-minute average must not exceed 253 V.

2. Isolate the grid connection (switch the line circuit

breaker to its "Off" position), make sure it cannot be
switched back on, and test to make sure no voltage
is present.

3. Remove the screws that secure the enclosure of the

Sunny Boy and carefully remove the cover. Remove
the PE connection from the cover.

4. Connect the mains cable as shown in the figure.

Use the supplied cable opening.
"L" and "N" must not be swapped.

5. Connect the protective earth (PE) of the power line

to the upper screw terminal with the earth sign.

6. Reconnect the PE connection to the housing cover

with these.

7. Fix the housing cover of the Sunny Boy and tighten

the four screws evenly.

Connection requirements of the grid operator
Always observe the connection requirements of your grid operator!

Off!