SMA SC 250U - Manual (Page 12)

Description of the Sunny Central SMA America, LLC
12 SCUS-BE-BUS120514 User Manual
Principle of a PV Power System with a Sunny Central 500HE-US
Position Description
A PV modules
B DC distribution with DC fuses (e.g., Sunny Central String-Monitor)
C DC disconnect
D Sunny Central
E Transformer
F Public grid