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Square D circuit breakers are available in countless different configurations. We list hundreds of models in our online catalog, including popular models like the XO120, EDB34030, KA36200, QOB230, and FA34100. If you're having a difficult time finding the exact part you need, call us and we'll help you get the Square D breaker you need, quickly. We usually ship the same day and offer free UPS Ground shipping on contiguous US orders of $100 or more.
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Square D is an American manufacturer of equipment used to control and distribute electric power headquartered in Palatine, Illinois.
Square D was founded in 1903 in Detroit, Michigan by Bryson Dexter Horton who is credited with the invention of the safety switch which encased high voltage switches and started the company's main line of business of circuit breakers and encased control panels. In 1991, the company was acquired and became a subsidiary of Schneider Electric. Products and systems developed by the Square D brand are present in all sectors of activity, from circuit breakers to monitoring and control systems. The tertiary and residential building sectors are major consumers of Square D product.
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Square D is an American manufacturer of equipment used to control and distribute electric power headquartered in Palatine, Illinois.
Square D was founded in 1903 in Detroit, Michigan by Bryson Dexter Horton who is credited with the invention of the safety switch which encased high voltage switches and started the company's main line of business of circuit breakers and encased control panels. In 1991, the company was acquired and became a subsidiary of Schneider Electric. Products and systems developed by the Square D brand are present in all sectors of activity, from circuit breakers to monitoring and control systems. The tertiary and residential building sectors are major consumers of Square D product.
Square D Circuit Breakers
New, used, and obsolete - all come with a 1-year replacement warranty
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* Not all of our inventory is listed on our website. Call us if you can't find what you need.
Square D SK4515 Circuit Breaker
Square D SK4515 - 15 to 100 ampere 3 pole twin mounting assembly; used on fal circuit breaker; mounting height 4.5 inch
Reconditioned: Call for Price
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New: Call for Price
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Square D SK4516 Circuit Breaker
Square D SK4516 - Mounting assembly type; kal 100 to 225 ampere twin circuit breaker used on; 3 pole(s); mounting height 6 inch
Reconditioned: Call for Price
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New: Call for Price
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Square D SK4517 Circuit Breaker
Square D SK4517 - 125 to 400 ampere 3 pole single mounting assembly; used on lal circuit breaker; mounting height 6 inch
Reconditioned: Call for Price
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New: Call for Price
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Square D SMA3630 Circuit Breaker
Square D SMA3630 - 630a 415/240v mld cb
Reconditioned: Call for Price
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New: Call for Price
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Square D SN100FA Circuit Breaker
Square D SN100FA - Insulated groundable neutral; 100 ampere; conductor material aluminum/copper; (1) 14 to 4 awg (copper) ground conductor size; (1) 14 to 1/0 awg (copper)/(1) 12 to 1/0 awg (aluminum) main conductor; used on nema 1/3r/4/4x/5/12 circuit breaker
Reconditioned: Call for Price
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New: Call for Price
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Square D SN1200NA Circuit Breaker
Square D SN1200NA - Insulated groundable neutral; 1200 ampere; conductor material aluminum/copper; (1) 4 awg to 350 kcmil (copper) ground conductor size; (4) 3/0 awg to 600 kcmil main conductor; used on nema 1/3r/4/4x/5/12 circuit breaker
Reconditioned: Call for Price
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New: Call for Price
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Square D SN400LA Circuit Breaker
Square D SN400LA - Insulated groundable neutral; 400 ampere; conductor material aluminum/copper; (1) 4 awg to 300 kcmil (copper/aluminum)/(2) 6 awg to 250 kcmil (copper) ground conductor size; (1) 1 awg to 60...(more)
Reconditioned: Call for Price
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New: Call for Price
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Square D US24820018 Circuit Breaker
Square D US24820018 - 23 inch l 200 ampere 48 pole two conductor mounting base; used on 240 vac ul489 c60 series circuit breaker; multi 9[t] brand
Reconditioned: Call for Price
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New: Call for Price
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Square D X6306154 Circuit Breaker
Square D X6306154 - Njnfe36400e20 ckt brkr
Reconditioned: Call for Price
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New: Call for Price
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Square D XO115 Circuit Breaker
Square D XO115 - 1pole 15amp 120volt xo type square d sqd circuit breaker
Reconditioned: Call for Price
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New: Call for Price
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We also stock items not listed in our online catalog