SMA SC 250U - Manual (Page 33)

SMA America, LLC 6 Electrical connection
Installation Guide DISU_SCUS-IA-IUS111711 33
Maximum numbers of DC inputs
6.3 Connecting DC cables to the Disconnect Unit
6.3.1 Connection sequence DC switches
Depending on your order the Disconnect Unit contains up to five DC switches. There are up to 3 DC
switches in the back row and up to 2 in the front row. The location of the DC home runs contacts are
depicted in figure 14 and 15 shown below.
Maximum number of DC inputs for Sunny Central 250U 6
Maximum number of DC inputs for Sunny Central 500U / 500HE-US / CA and Sunny
Central CP 9