10 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Operating ManualSTPx0-3SE-40-BE-en-1088
11. Ensure that no electric currents are present between
the positive terminal and negative terminal at the
battery inputs using a suitable measuring device.
12. Insert an MC4 wrench (not included in the scope of
delivery) into the notch of the DC connectors of the
battery connection cables and pull slightly to
remove the DC connectors.
13. Ensure that the AC connectors for connection to the utility grid and for connection of the AC
backup loads are marked so that they cannot be reversed when reconnected.
14. Remove the screw of the fuse terminal of the AC
connector for connecting the AC backup loads
(PH1) and slide the fuse terminal to the left.
15. Squeeze the brackets on the top and bottom of the
AC connector for connecting the AC backup loads
and apply slight pressure. Pull the AC connector at
the same time to remove the AC connector.
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