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Square D Circuit Breakers

Reliable Breakers extensively stocks a wide range of Square D products ranging from Starters and Motor Controls to PowerPact and MasterPact CBreakers. Not limited to only new product, Reliable Breakers stocks thousands of obsolete and hard to find Square D items. Our professional, knowledgeable and well-trained sales staff is ready to assist you with all of your electrical needs. Whether you need assistance with obsolete molded case circuit breakers or industrial-sized medium voltage circuit breakers, Reliable Breakers is your number one option.


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Square D Circuit Breaker Most Popular Types


FAL Circuit Breaker Types


FAL Circuit Breakers Types
  • FAL Circuit Breakers Types

EHB Circuit Breaker Types


EHB Circuit Breakers Types
  • EHB Circuit Breakers Types

JJA Circuit Breaker Types


JJA Circuit Breakers Types
  • JJA Circuit Breakers Types

FA Circuit Breakers Types


FA Circuit Breakers Types
  • FA Circuit Breakers Types

MGA Circuit Breakers Types


MGA Circuit Breakers Types
  • MGA Circuit Breakers Types

KA Circuit Breakers Types


KA Circuit Breakers Types
  • KA Circuit Breakers Types

HJA Circuit Breakers Types


HJA Circuit Breakers Types
  • HJA Circuit Breakers Types

MAL Circuit Breakers Types


MAL Circuit Breakers Types
  • MAL Circuit Breakers Types


Square D Catalog Download


Square D Catalog Square D Catalog (2730 KB)


The History Of Square D


Square D brand, by Schneider Electric, is an American manufacturer of electrical equipment headquartered in Palatine, Illinois. The company was founded on December 15, 1902 by Bryson Dexter Horton and James B. McCarthy. In the late 1800’s to early 1900’s Bryson Dexter Horton was credited with inventing the safety switch, and the first enclosed safety switch was introduced in 1909. Based in Detroit at the time, the company adopted the classic logo of the enclosed “D” for the city they were located in. In the early 1920’s Square D took advantage of the new-found concern for safety in the workplace, and began to promote their new line of safety switches for the growing number of factories throughout the country. Today Square D is an industry leader in the electrical world and was acquired by Schneider Electric in 1991. Schneider Electric also owns several other once-popular electrical brands such as Merlin Gerin and Telemecanique.


Leading the way for over 100 years, Square D is one of the most trusted and respected electrical brands in the world. They have helped companies innovate and re-create their marketplace in areas such as electrical utility, water and waste treatment plants, oil and gas industry, marine sectors and much more.