Why don't the HOMT tandem breakers fit into all Homeline load

Why don't the HOMT tandem breakers fit into all Homeline load two breakers in one slot A tandem breaker is a breaker that provides two separate and different circuits in the same circuit breaker slot Said breaker slot can be completely regular- two slot In this video I talk about Tandem Breakers and why you would want to use them Please

two slot 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

two breakers in one slot Both A and B circuits of a tandem breaker unit use the same phase, or incoming service leg corresponding to that slot 120V circuits use one leg Both fit in standard electrical panels, but double-pole breakers are twice the width of single-pole breakers This guide covers all the features