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

Square D lighting controls and circuit breakers have been lighting up industrial applications safely and efficiently for years. We offer a full line of products that will work within any industrial application.

Square D is a leading manufacturer of electrical equipment for residential, commercial and industrial applications. Founded in Detroit, Michigan in 1901, Square D quickly became known for innovative …

Square D offers a complete range of safety products and solutions for your protection needs. Square D™ NF and NQ Panelboards provide best-in-class overcurrent and advanced function protection for …

Get free shipping on qualified Square D products or Buy Online Pick Up in Store today in the Electrical Department.

Explore our full range of Square D products, electrical distribution services, and the latest innovations to power your success.

Designed specifically with electrical contractors in mind, Square D has upgraded its market-leading QO™ and Homeline™ combination arc fault and dual function breakers.

Enjoy shorter lead times and flexibility with Square D low voltage (LV) switchboards, UL 891 rated to meet various industry applications including data centers, hospitals, and offices. Includes the QED 2 …

Economical space-saving design for providing small changes in voltages to match load requirements. Square D™ Buck and Boost Transformers are UL and cUL listed (UL 506).