John Kogel Posted May 29, 2015 Report Share Posted May 29, 2015 A 1959 SquareD panel has two double taps. One is for the doorbell transformer installed and we assume approved by the authority in 1959. The other was added a decade or two later when the basement was dressed up. I don't believe the breaker is rated for double tapping due to its age. I believe the doorbell double tap is acceptable but not good practice. I called for the electrician to check the added circuit installation and repair it. When did SquareD start adding the two wire rating to their breakers? Click to Enlarge 32.68 KB Click to Enlarge 53.6 KB Click to Enlarge 68.9 KB Quote Link to comment Share on other sites More sharing options...
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