6 electrical connection, 1 overview electrical connections, 1 disconnect unit for sunny central 250u/500u – SMA SC 250U User Manual
Page 30: Electrical connection, Overview electrical connections, Disconnect unit for sunny central 250u/500u
6 Electrical connection
SMA America, LLC
30
DISU_SCUS-IA-IUS111711
Installation Guide
6 Electrical connection
6.1 Overview electrical connections
6.1.1 Disconnect Unit for Sunny Central 250U/500U
The following illustration gives an overview of a Disconnect Unit for Sunny Central 250U and Sunny
Central 500U.
Position
Description
A
Connection for ungrounded DC to inverter
B
PE busbar
C
Connection for ungrounded DC from PV-plant
D
Connection for AC to power distribution grid
E
Connection for AC from inverter
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