SMA SC 400HE Installation - Manual (Page 73)

SMA Solar Technology AG External Connections
Installation Guide SCxxxHE-IEN104432 73
Handling the Connection Terminals for the Internal Power Supply
The following figure shows the correct method for handling the terminals used for connecting external
cables to the control terminal strip of the control voltage. The connection terminals are designed as
maintenance-free spring-loaded terminals that can be operated using a screwdriver of the correct size.
A 3-phase connection of the internal power supply is made to the control circuit terminals.
Handling the connection terminals (source: WAGO)
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