SMA SB 3000TL-20 Installation - Manual (Page 22)

Mounting SMA Solar Technology AG
22 SB30TL_40TL_50TL-IA-IEN120231 Installation Guide
5. Check both sides of the inverter to ensure that it is
correctly in place.
Securing the Inverter Against Excavation
Additionally secure the inverter in the wall using screws.
1. Remove the Electronic Solar Switch downwards.
2. Loosen all 6 captive screws and remove lid.
3. Drill through the back wall of the enclosure.
4. Use a suitable drill bit with a minimum length of
120 mm.
5. Insert suitable wall anchor.