Alpha ESS SMILE-G3-S5 Manual page 75

Appendix 3: System Connection Diagrams
Example for application that Neutral connects together with PE in distribution
box, such as Australia, New Zealand, South Africa, etc. (Please follow local wiring
regulations!)
Example for grid systems without special requirements on electrical wiring
connection. (The back-up PE line and earthing bar must be grounded properly
and effectively. Otherwise the back-up function may be abnormal when the grid
fails.)