Square D miniature circuit breakers (MCBs), manufactured by Schneider Electric, provide reliable overcurrent and short-circuit protection for residential, commercial, and industrial electrical systems. Designed to automatically interrupt power during electrical faults, Square D MCBs help protect wiring, equipment, and connected devices while ensuring safe and dependable operation. Available in a variety of amperage ratings, pole configurations, and trip characteristics, Square D miniature circuit breakers are ideal for panelboards, control panels, machinery, and power distribution systems where compact, high-performance circuit protection is essential.
Square D Miniature Circuit Breakers
Square D miniature circuit breakers (MCBs), manufactured by Schneider Electric, provide reliable overcurrent and short-circuit protection for residential, commercial, and industrial electrical systems. Designed to automatically interrupt power during electrical faults, Square D MCBs help protect wiring, equipment, and connected devices while ensuring safe and dependable operation. Available in a variety of amperage ratings, pole configurations, and trip characteristics, Square D miniature circuit breakers are ideal for panelboards, control panels, machinery, and power distribution systems where compact, high-performance circuit protection is essential.
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Miniature Circuit Breaker, QO Series, 100A, 1 Pole, 120/240V AC, 10kA at 120/240V AC - QOU1100
Regular price $262.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 70A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM70VH
Regular price $129.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 60A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM60VH
Regular price $126.96 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 2 Pole, 240V AC, 22kA at 120/240V AC - QOM50VH
Regular price $137.90 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 200A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM2200VH
Regular price $255.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 150A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM2150VH
Regular price $271.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 125A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM2125VH
Regular price $307.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM2100VH
Regular price $313.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 125A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM125VH
Regular price $305.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOM100VH
Regular price $119.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 80A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB380
Regular price $652.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 90A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB390
Regular price $652.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 70A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB370
Regular price $532.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 60A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB360
Regular price $465.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 60A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB360VH
Regular price $675.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 120/208V AC, 10kA at 208/120V AC, A Curve - QOB350GFI
Regular price $849.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB350VH
Regular price $676.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB3501021
Regular price $780.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB350
Regular price $449.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 45A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB345
Regular price $447.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB340VH
Regular price $676.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB3401021
Regular price $686.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB340
Regular price $422.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 35A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB335
Regular price $422.38 USDRegular priceUnit price per
