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, 40A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB2401021
Regular price $465.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 40A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB240
Regular price $134.22 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 35A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB235
Regular price $139.60 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB230VH
Regular price $263.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB230HID
Regular price $151.28 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, A Curve - QOB230GFI
Regular price $700.78 USDRegular priceUnit price per -
Miniature Circuit Breaker 120/240V 30A | Square D QOB2305252 - QOB2305252
Regular price $507.06 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, B Curve - QOB230EPD
Regular price $1,262.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB2301021
Regular price $465.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, 2 POLE, 120/240V, 30A | Square D QOB230 - QOB230
Regular price $122.32 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB220VH
Regular price $263.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 25A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB225
Regular price $138.16 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120V AC, 10kA at 120V AC - QOB220SWN
Regular price $182.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB220HID
Regular price $151.28 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, A Curve - QOB220GFI
Regular price $636.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, B Curve - QOB220EPD
Regular price $853.66 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB2201021
Regular price $465.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB220
Regular price $115.02 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB215VH
Regular price $263.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB215
Regular price $139.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB2100VH
Regular price $694.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB2100
Regular price $342.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 10A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB210
Regular price $124.30 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 1 Pole, 120/240V AC, 22kA at 120/240V AC - QOB130VH
Regular price $132.78 USDRegular priceUnit price per
