Square D

Square D was originally known as the Detroit Fuse and Manufacturing Co. The letter 'D' for Detroit was stamped inside a square on all of their electrical products, and technicians referred to these products as "Square D". Schneider Electric acquired the company in 1991. Under the Square D brand, Schneider Electric markets limit switches, motor starters, circuit breakers, servo drives, speed switches, signal conditioners, rotary cam switches, Smart Motor Controls, and PLCs.

This website is not sanctioned or approved by any manufacturer or trade name listed. Santa Clara Systems, Inc. purchases surplus product and is not an authorized distributor or representative for the listed industrial automation control manufacturers and therefore not limited by OEM price or territorial restriction.

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Santa Clara Systems, Inc. 2060 North Loop Road, Alameda, CA 94502

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