Two switches vs one switch for 220 volt 20 amp circuit breaker

Two switches vs one switch for 220 volt 20 amp circuit breaker two breakers in one slot Flip both of them upside down and compare the slots on them where they slap into the busbar I bet the slot is much larger on the regular two slot toaster 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 slot toaster Take a look at the photo below You can see that the back of these two breakers has two completely different slots These slots go into a bus bar exclusively

two breakers in one slot The duplex breakers provide two single pole breakers in the space typically required for only one standard breaker These duplex, 12-Inch frame breakers are Some panels only allow one breaker per slot, while others allow slots to accept a tandem breaker, which fits two breakers in one slot