Square D SDSA1175 Surge Protective Device

The Square D SDSA1175 is a surge protective device (SPD) engineered for residential and commercial electrical systems to protect sensitive electronics and equipment from transient voltage spikes.

The Square D brand was originally founded in Detroit, Michigan, in 1902 by Bryson Dexter Horton and James B. McCarthy as the McBride Manufacturing Company, later renamed the Detroit Fuse and Manufacturing Company before adopting the Square D name. The company built an enduring reputation across North America for high-quality circuit breakers, safety switches, and electrical distribution hardware.

In 1991, Square D was acquired by Schneider Electric SE, a French multinational energy management and automation specialist headquartered in Rueil-Malmaison, France. As clearly indicated on the product packaging ('Made in Mexico' / 'Hecho en México'), this specific unit was manufactured in Mexico, where Schneider Electric operates significant production facilities.