Frequently asked questions
Video: Do conductors passing through a Current Transformer (CT) have to enter a specific side of the CT?
FA88046
11 April 2022
Issue:
Some Current Transformers (CT's) are marked with H1 on one side and H2 on the other
Product Line:
LV Transformers
Environment:
Applies to Current Transformers (CT's) by SquareD/Schneider Electric
Cause:
Some applications are polarity specific
Resolution:
Yes, to achieve the proper polarity of the circuit, which is critical in some applications, it is necessary to have the source side of the conductor entering the H1 polarity side of the CT. This is clearly detailed in the installation instructions included with the CT.