Thread: Breaker panel
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Old 10-06-2013, 02:19 PM   #8
Bob Landry
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Join Date: Jan 2011
Location: Austin, Tx
Posts: 1,910
A 50A input is going to be split into two 120V/50A legs. To do it any other way would defeat the purpose of having 50A service which is actually 100A total. From what he is describing, it's a 20A sub panel, but who knows where it would be fed from. If that's the case, the 20A dual breaker would be the input breaker and then the input breakers would be ganged together, either externally by the toggles, or they would be connected internally. At any rate, if there were to be an issue, both breakers should trip at the same time since they would be carrying the hot & neutral input to the panel. I'm also making an assumption, perhaps erroneously, that these are panels with the toggles accessible for the breakers and not a panel of the household variety. A photo of both panels will help sort it out.
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