Answers
Sep 21, 2017 - 03:17 AM
This transfer switch has Mechanical Interlocking Contactors, this will not be quiet and will make a humming noise. If you want one that is on the quiet side check out the relay based transfer switch below.
https://www.rvupgradestore.com/LYGHT-...
https://www.rvupgradestore.com/LYGHT-...
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