V-TAC VT-6603105 Manuel D'instructions page 6

 The recommended solar modules need to comply with IEC61730 Class A
standard.
SAFETY GUIDELINES
The series grid-tied solar inverters support TN-S, TN-C, TN-C-S and TT grid connection.
When applied to the TT connection, the N-to-PE voltage should be less than 30V.
PRODUCT APPEARANCE
Figure 3 Products appearance
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