SMA SUNNY BOY 4000TL - Electrical Connection; Safety during Electrical Connection

SMA Solar Technology AG Mounting
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 23
6. Fasten the inverter.
The screw must meet the following requirements:
☑ The inverter is protected against excavation.
Length: at least 100 mm
Diameter: 8 mm
Screw head No outside hexagon,
no countersunk head