SMA SC 400HE - Manual (Page 11)

SMA Solar Technology AG 2 Safety
Operating Manual SC4-63HE-BE-BEN103280 11
2 Safety
2.1 Intended Use
The inverter converts DC current generated in PV modules into grid-compliant AC current. Here, the
maximum permissible DC input voltage must not be exceeded.
Inverters of the HE series may only be operated in connection with a suitable transformer.
Settings that affect grid management may not be switched off or changed without first obtaining
approval from the distribution grid operator.
Figure 1: Principle of a grid-connected PV plant with a Sunny Central
Object Description
A PV modules
B Sunny String-Monitor
C Sunny Central
D Medium-voltage transformer (e.g., Transformer Compact Station)
E Power distribution grid