5.4 AC Side Electrical Connection
Conductor cross-sectional area of cables（mm²）
External cable diameter（mm）
Table 5.2
Recommended AC cable specification
Note: If the grid-connection distance is too far, please select an AC cable with larger diameter as per the
actual condition. Mutli-core cable is recommended if cross-sectional area is less than 10mm², otherwise
single-core cable is recommended. Copper core cable is recommended.
The higher grid impedance of the AC cable makes it easier to disconnect from the grid due to excessive
voltage at the feed-in point. The maximum cable lengths depend on the conductor cross-section as follows：
Conductor
cross-sectional
area （mm²）
R6-9/10K-S2-X；R6-9/10K-S3
Figure 5.5
Connecting AC cable
1.Strip off 16mm of wire insulation skin and 46mm of AC cable insulation skin
2.Insert the cable through waterproof cable gland and housing
3.Insert the conductors into the corresponding ports and fix it with screws
4.Secure the cable gland by fastening sealing nut
5.Plug the AC connector into the AC connector port of inverte
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