Delta Hybrid E5 Installation Instructions Manual page 48

Connecting inverter to mains (AC)
Readying AC cable of inverter for use and connecting it
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5. Place and screw tight the nut and housing.
6. Turn the AC/DC disconnecter on the inverter to the
OFF position.
7. Plug the AC plug into the AC connection on the
inverter and tighten.
8. Fasten the AC cable with a strain relief element.
Installation Instructions for the Hybrid E5 Battery Storage System EU V1 EN 2018-09-17