SMA SMB - Manual (Page 13)

SMA Solar Technology AG 4 Product Description
Installation Manual SMB-IA-en-10 13
4.2 Sunny Main Box Cabinet
The Sunny Main Box Cabinet is a DC main distribution which gathers the outgoing string cables from
the DC sub-distributions and leads them to the central inverter via the DC main cable.
Figure 5: Components of the Sunny Main Box Cabinet
Depending on the version, the Sunny Main Box Cabinet is equipped with 2 x 8, 2 x 2 x 4 or 2 x 2 x 3
inputs. The Sunny Main Box Cabinet is mounted on a base and is equipped with a door on both front and
rear sides.
Position Designation
A Switch cabinet lock
B Door