SMA SC 250U - Manual (Page 31)

SMA America, LLC 6 Electrical connection
Installation Guide DISU_SCUS-IA-IUS111711 31
6.1.2 Disconnect Unit for Sunny Central 500HE-US/CA and
Sunny Central CP
Figure 13: Overview electrical connection
Position Description
A Connection for ungrounded DC to inverter
B PE busbar
C Connection for ungrounded DC from PV-plant
D Busbars for AC to power distribution grid
E Busbars for AC from inverter
D
C
B
E
A