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, 15A, 1 Pole, 120V AC, 10kA at 120V AC, B Curve - QOB115EPD
Regular price $715.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 1 Pole, 120V AC, 10kA at 120V AC - QOB115DF
Regular price $321.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, HOMELINE Series, 15A, 1 Pole, 120V AC, 10kA at 120V AC - QOB115CAFI
Regular price $233.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 1 Pole, 120/240V AC, 10kA at 120/240V AC - QOB1151021
Regular price $382.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 90A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QO390VH
Regular price $459.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 80A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO3805273
Regular price $403.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 60A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO3605273
Regular price $279.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 80A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QO3801021
Regular price $539.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QO350SWN1021
Regular price $499.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO3505238
Regular price $372.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 240V AC, 10kA at 240V AC, B Curve - QO350EPD
Regular price $1,795.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 40A, 3 Pole, 208/120V AC, 10kA at 208/120V AC, A Curve - QO340GFI
Regular price $959.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 3 Pole, 600V AC, 10kA at 240V AC - QO330PL5392
Regular price $1,759.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 3 Pole, 208/120V AC, 10kA at 208/120V AC, A Curve - QO330GFI
Regular price $796.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO3305237
Regular price $294.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 25A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QO325VH
Regular price $487.42 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO3205237
Regular price $281.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QO315VH
Regular price $359.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 3 Pole, 208/120V AC, 10kA at 208/120V AC, A Curve - QO315GFI
Regular price $796.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO3155237
Regular price $281.58 USDRegular priceUnit price per -
Schneider Miniature Circuit Breaker 240V 10A - QO3105237
Regular price $172.96 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QO3100CP
Regular price $387.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 3 Pole, 240V AC, 10kA at 120/240V AC - QO31005273
Regular price $401.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 2x1 Pole, 240V AC, 10kA at 120/240V AC - QO3030
Regular price $121.26 USDRegular priceUnit price per
