Square D

Square D is a flagship brand of Schneider Electric, which acquired Square D in 1991. Square D is an American manufacturer of electrical equipment headquartered in Andover, Massachusetts.

This collection includes Square D Homeline™ plug-on circuit breakers in single-pole, two-pole, tandem and quad tandem styles, along with QO™ breakers. Compare amperage, number of poles, interrupting rating and voltage on each product page, and confirm the breaker is listed for your panel before installing.

Browse more options in our circuit breakers collection.