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Are Circuit Breakers Interchangeable two breakers in one slot SOME breakers are rated to have two wires to one terminal but it is possible this is still not allowed by your two slot A tandem breaker is TWO separate 120v circuit on a single breaker img Electrician: WireGuyFranklin If you switch the bottom wire to the top

two breakers in one slot A tandem breaker is a type of circuit breaker that fits into a single slot in an electrical panel but provides two separate circuits They're