6 Electrical Connection SMA Solar Technology AG
36 SB30-50TL-21-IA-en-21 Installation Manual
6.3.2 Connecting the Inverter to the Electricity Mains (AC)
1. Make sure that the mains voltage is within the permissible voltage range.
The exact operating range of the inverter is specified in the operating parameters. You will find
this document in the download area at www.SMA-Solar.com in the "Technical Description"
category of the given inverter.
2. Disconnect the miniature circuit-breaker and secure against reconnection.
3. If an external DC switch-disconnector is in use, disconnect it.
4. If an ESS is plugged in, remove it.
5. Loosen all six captive screws and remove the lower
enclosure lid. Use an Allen key (AF 3) to do this.
6. Check that the country setting of the inverter is correct using the supplementary sheet with the
default settings provided.
If the inverter is not configured to the required country standard, set the country standard
(see Section6.5.2 "Setting the Country Standard and Language using the Rotary Switches",
page54).