SMA SC CP - Manual (Page 4)

SMA Solar Technology AG Sealing
Additional sheet Plomb-BB-IEN112920 4/6
3.3.2 Sealing the rear side of the connection cabinet on a station
installation
If you have installed central inverters of the CP- and HE-20 production series in a station, the rear
screws on the rear side of the connection cabinet are not accessible.
Figure 3: Positions of the screws for sealing in a station installation (using the example of a Sunny Central of the
HE-20 production series)
1. If the screws on the rear panel are accessible, remove the screws from the rear and side panels
using a Torx screwdriver. Put the washers safely to one side.
2. If the screws on the rear panel are not accessible, only remove the screws from the side panel
using a Torx screwdriver. Put the washers safely to one side.
3. Insert the sealing screws with washers and tighten (torque 6 Nm).
4. Thread the sealing wire through the screw pairs.
5. Seal the sealing wire using the seal.