Can You Mix 20 And 15-20 Circuit Breakers In Same Electrical Box? - Electrical - Page 2 - DIY Chatroom Home Improvement Forum

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Old 05-15-2013, 05:50 PM   #16
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The tandems allow two circuits to fit in the space of one breaker slot.


Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
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Old 05-15-2013, 06:01 PM   #17
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The "quad" allows one to add a 240V circuit to a full panel without losing two 120V circuits in the process. Or gain two 120V circuits from the space occupied by a 240V circuit.

Separate handle tied tandems can serve a MWBC, but typically not a 240V circuit because they would likely be independent trip, not common trip.


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Last edited by tylernt; 05-15-2013 at 06:03 PM.
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