Sungrow SG3425UD - Checking the Cables; During Connection; Circuit Diagram and Cable Connection; Circuit Diagram

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6.2.4 Checking the Cables
Check to ensure the intactness and insulation of all cables before electrical
connection.
Poor insulation or damages in the cables may cause hazards. Replace them if
necessary.
6.2.5 During Connection
Make sure the DC cables are correctly routed before connection.
• Do not pull the cables hard during connection.
• Make sure there is enough wire bending space for all connection cables.
• Take proper measures to reduce the stress of cables.
• Check carefully to ensure the correctness and fastness of the connections.
6.3 Circuit Diagram and Cable Connection
6.3.1 Circuit Diagram
No. Name
A DC input
B AC output
C External communication port
D DC cabinet
E Module cabinet
F AC cabinet
6 Electrical Installation System Manual