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, 30A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB330VH
Regular price $635.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 30A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB330
Regular price $422.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 25A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB325
Regular price $422.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB320VH
Regular price $635.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 20A, 3 Pole, 240V AC, 10kA at 240V AC - QOB320HID
Regular price $623.98 USDRegular priceUnit price per -
Miniature Circuit Breaker 208Y/120V 20A | Square D QOB320GFI - QOB320GFI
Regular price $849.58 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 150A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB3150VH
Regular price $2,783.98 USDRegular priceUnit price per -
Circuit Breaker, Miniature, 3-P, 20A, 240VAC, Pressure Plate, 14-8 AWG, Bolt-on - QOB320
Regular price $302.10 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 15A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB315
Regular price $419.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB3100VH
Regular price $967.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 125A, 3 Pole, 120/240V AC, 22kA at 120/240V AC - QOB3125VH
Regular price $1,171.15 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB3100
Regular price $604.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 100A, 3 Pole, 120/240V AC, 10kA at 120/240V AC - QOB31001021
Regular price $1,038.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 60A, 3 Pole, 240V AC, 10kA at 240V AC - QOB300
Regular price $495.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 80A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB280
Regular price $342.38 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 70A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB270
Regular price $244.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 60A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB260VH
Regular price $263.98 USDRegular priceUnit price per -
Miniature Circuit Breaker, 2 POLE, 120/240V, 60A | Square D QOB260 - QOB260
Regular price $139.60 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB250VH
Regular price $332.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB250H
Regular price $363.18 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB2501021
Regular price $460.78 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB250
Regular price $129.10 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 45A, 2 Pole, 120/240V AC, 10kA at 120/240V AC - QOB245
Regular price $117.04 USDRegular priceUnit price per -
Miniature Circuit Breaker, QO Series, 40A, 2 Pole, 120/240V AC, 22kA at 120/240V AC - QOB240VH
Regular price $254.38 USDRegular priceUnit price per
