Does Home Depot carry Square D breakers?
Also question is, does Home Depot sell Square D breakers?
Square D - Breaker Boxes - Power Distribution - The Home Depot.
Then, are all Square D circuit breakers interchangeable?
The circuit load will determine the breaker size you need – and you'll need to make sure to get the right brand, as all breakers are not interchangeable.
Square D is an American manufacturer of electrical equipment headquartered in Andover, Massachusetts. Square D is a flagship brand of Schneider Electric, which acquired Square D in 1991.