2 Product Description User Manual
Item Description Note
E Utility grid TN-C, TN-S, TN-C-S, TT, IT.
The following figure shows the common grid configurations.
NOTICE
In a TT power grid, the N-PE voltage should be lower than 30 V.
2.2 Product Introduction
Model Description
The model description is as follows(Take SG110CX-20 as an example):
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