When adding circuits to a home electrical distribution panel, can two circuits be wired to the same breaker?
Yes you can. Whos to say all that load would not have originally been on one circuit instead of two! The matter of attaching two wires to one breaker is another matter. Some breakers, such as Square D’s QO line, have a saddle type arrangement that is UL listed to accept two wires. It even states so on the side of the breaker. However some breakers only have a single set screw terminal that is only UL listed to accept one wire. The important thing is that it is UL listed to do what you ask. The National Electrical Code (NEC) requires that equipment be installed in the manner in which it is listed. If you have a breaker that only has a single set screw terminal you’re still in luck. It is permissible by the NEC to make splices in a panel. In your case you would need to take a short piece of wire of the same gauge as the two circuits and simply splice the pigtail wire to the two circuit wires with a wire nut. Now take the other end of the pigtail and connect it to the breaker. With this y
