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Do the EX and EXN Transformers have a lower than standard dB level?

Issue;
EX and EXN Transformers and standard DB level

Product Line;
EX and EXN Transformers

Evironment;
Applies to Low Voltage Transformers by SquareD/Schneider Electric

Cause;
dB Sound Level

Resolution;
The new EX and EXN Transformers are built with lower dB ratings compared to DOE standards.  Most units are designed to have sound levels -3 dB below the NEMA ST-20 tables with some units available with -6 dB below the NEMA ST-20 tables.



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