7 Electrical Connection
SMA Solar Technology AG
Operating ManualSTPx0-3SE-40-BE-en-1044
15. Tighten the swivel nut on the connector enclosure.
16. Remove the protective cap from the AC-BACKUP
socket.
17. Insert the AC connector into the AC-BACKUP
socket. The AC connector must snap audibly into
place.
18. Slide the fuse terminal block onto the bracket of the
AC connector from the left and screw tight (PH1,
torque: 0.5 Nm).
19. Ensure that the grounding conductors of the electric circuits of the battery-backup appliances
are connected to the grounding busbar of the house connection box. Otherwise the backup
loads cannot be supplied with power.
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