Square D Circuit Breakers

Square D is a leading American manufacturer of electrical distribution equipment and balance-of-system components used across residential, commercial, and industrial applications. Known as one of the most trusted names in electrical management, Square D delivers reliable, high-quality solutions for power distribution, including systems designed for both grid-tied and off-grid solar energy installations.

Square D products support a wide range of professionals—including electrical contractors, building owners, facility managers, automation engineers, and systems consultants. Backed by the global resources of Schneider Electric, Square D solutions help simplify the connection between electrical distribution equipment and other building systems, improving overall efficiency and performance. Whether the need is for basic electrical infrastructure or fully integrated solutions for commercial and manufacturing environments, Square D products are designed around an architecture focused on efficiency, reliability, and ease of integration.

The brand is especially well known for its QO line of circuit breakers, one of the most recognized and widely used breaker systems in the industry. From breakers and load centers to motor controls, switches, and power distribution components, the Square D product catalog supports reliable, code-compliant electrical installations.

Originally an independent American manufacturer of electrical equipment such as circuit breakers, Square D was later acquired by the global French technology company Schneider Electric. This integration expanded Square D’s reach while strengthening Schneider Electric’s presence in North America, particularly in the critical field of power distribution. Today, Schneider Electric delivers integrated systems and architectures across a wide range of applications, supporting both IEC and NEMA standards regardless of where the final installation is located.

Schneider Electric’s mission is to create meaningful impact by empowering organizations and individuals to make the most of their energy and resources—bridging progress and sustainability. As a global leader in industrial technology, Schneider Electric combines expertise in electrification, automation, and digitalization to support smart industries, resilient infrastructure, advanced data centers, intelligent buildings, and connected homes.

Through its integrated approach, Schneider Electric delivers AI-enabled Industrial IoT solutions that connect products, automation systems, software, and services across the entire lifecycle—from design and construction to operation and maintenance. These solutions include digital twin technology that helps customers improve performance, efficiency, and long-term profitability.

For decades, consulting engineers, contractors, homebuilders, and distributors have recognized Square D products as the gold standard for dependable, high-quality power distribution. The switchgear, breakers, transformers, and control systems specified and installed by professionals across industries have earned a reputation as the workhorses of electrical infrastructure.

End users—from factory operators to commercial building managers and homeowners—continue to rely on the Square D brand for solutions that are safe, innovative, efficient, and built to last.

Today’s connected world requires more than just quality hardware. Schneider Electric drives digital transformation by integrating advanced energy and process technologies with cloud-connected platforms. By linking products, controls, software, and services from the endpoint to the cloud, Schneider enables lifecycle solutions that help organizations design, build, operate, and maintain smarter systems.

With safety, reliability, and cybersecurity at the core of its integrated solutions, Schneider Electric supports the infrastructure that powers homes, buildings, data centers, and industries around the world.