I have one of these thin dual circuit breakers Can I only

Double-pole breakers have two hot wires that are connected by a single neutral wire That means if there's a short circuit on either of the

There are code limits on the number of circuits you can have in one residential panel And remember that both circuits are on the same phase

two breakers in one slot A tandem circuit breaker connects two independent 120V circuits, both necessarily on the same leg since it's a single slot in the load center A dual pole

two slot I have found double space and single space 20a breakers Other than taking half the room, the specs seem identical Both allow each half to be used as a