SMA SB 3000TL-20 Installation - Manual (Page 61)

SMA Solar Technology AG Opening and closing
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 61
7.2 Opening the Inverter
1. Disconnect the line circuit breaker and secure against re-connection.
2. If it is connected, switch off the power supply to the multifunction relay and prevent it from
switching back on.
3. Remove the Electronic Solar Switch.
4. Loosen all 6 captive screws and remove the lower
lid.
5. Using a current probe, ensure that there is no
current to all DC cables.
☑ If there is a current present, check the
installation.