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Square D Miniature Circuit Breakers for Panelboards and Load Centers

484 products
These miniature circuit breakers are compatible with Square D panelboards and load centers and interrupt the flow of current when low-level faults are detected. They prevent damage caused by overcurrents and short circuits in residential, light commercial, and industrial applications where sensitive circuit protection is needed.

QO Series, Plug-In Square D Miniature Circuit Breakers

QO Series, Plug-In Square D Miniature Circuit Breakers
These QO series miniature circuit breakers plug into place in NQOD and NQ panelboards and QO load centers without requiring DIN rail or bolts, so they're easier to install than bolt-on and unit-mount breakers. They interrupt currents when low-level faults are detected in the circuit. They connect to the power supply through bus bars, which eliminates the need to pigtail wires and helps organize the panelboard or load center.

Number of Poles: 1 ; Arc Fault Circuit Interrupter

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Number of Poles: 1 ; Combination Arc Fault Circuit Interrupter

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Number of Poles: 1 ; Ground Fault Circuit Interrupter (Class A - 5mA)

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Number of Poles: 1 ; Ground Fault Equipment Protection (30mA)

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Number of Poles: 1 ; High Intensity Discharge

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Number of Poles: 1 ; High Interrupting Capacity

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Number of Poles: 1 ; High Interupt Capacity

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Number of Poles: 1 ; High Magnetic

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Number of Poles: 1 ; PowerLink

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Number of Poles: 1 ; Shunt Trip

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Number of Poles: 1 ; Standard

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Number of Poles: 1 ; Tandem

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Number of Poles: 2 ; Ground Fault Circuit Interrupter (Class A - 5mA)

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Number of Poles: 2 ; Ground Fault Equipment Protection (30mA)

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Number of Poles: 2 ; High Intensity Discharge

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Number of Poles: 2 ; High Interrupting Capacity

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Number of Poles: 2 ; PowerLink

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Number of Poles: 2 ; Shunt Trip

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Number of Poles: 2 ; Standard

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Number of Poles: 2 ; Switched Neutral

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Number of Poles: 2 ; Tandem

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Number of Poles: 3 ; Ground Fault Circuit Interrupter (Class A - 5mA)

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Number of Poles: 3 ; Ground Fault Equipment Protection (30mA)

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Number of Poles: 3 ; High Intensity Discharge

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Number of Poles: 3 ; High Interrupting Capacity

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Number of Poles: 3 ; Shunt Trip

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Number of Poles: 3 ; Standard

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QOB Series, Bolt-On Square D Miniature Circuit Breakers

QOB Series, Bolt-On Square D Miniature Circuit Breakers
These QOB series miniature circuit breakers are bolted into place in NQOD and NQ panelboards or interiors, so they're more stable than plug-in or unit-mount circuit breakers. They interrupt currents when low-level faults are detected in the circuit. They have a lug orientation to allow for straight-in wiring through bus bars, which eliminates the need to pigtail wires and helps organize the load center.

Number of Poles: 1 ; Arc Fault Circuit Interrupter

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Number of Poles: 1 ; Ground Fault Circuit Interrupter

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Number of Poles: 1 ; Ground Fault Equipment Protection

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Number of Poles: 1 ; High Intensity Discharge

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Number of Poles: 1 ; High Interrupting Capacity

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Number of Poles: 1 ; High Magnetic

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Number of Poles: 1 ; Shunt Trip

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Number of Poles: 1 ; Standard

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Number of Poles: 2 ; Ground Fault Circuit Interrupter

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Number of Poles: 2 ; Ground Fault Equipment Protection

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Number of Poles: 2 ; High Intensity Discharge

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Number of Poles: 2 ; High Interrupting Capacity

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Number of Poles: 2 ; Shunt Trip

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Number of Poles: 2 ; Standard

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Number of Poles: 2 ; Switched Neutral

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Number of Poles: 3 ; Ground Fault Circuit Interrupter

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Number of Poles: 3 ; Ground Fault Equipment Protection

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Number of Poles: 3 ; High Intensity Discharge

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Number of Poles: 3 ; High Interrupting Capacity

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Number of Poles: 3 ; Shunt Trip

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Number of Poles: 3 ; Standard

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Number of Poles: 3 ; Switched Neutral

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EDB & EGB Series, Bolt-On Square D Miniature Circuit Breakers

EDB & EGB Series, Bolt-On Square D Miniature Circuit Breakers
These EBD and EGB series miniature circuit breakers are bolted into place in NF panelboards, so they're more stable than plug-in or unit-mount circuit breakers. They interrupt currents when low-level faults are detected in the circuit. They have a lug orientation to allow for straight-in wiring through bus bars, which eliminates the need to pigtail wires and helps organize the load center.

Number of Poles: 1 ; Ground Fault Equipment Protection

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Number of Poles: 1 ; Shunt Trip

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Number of Poles: 1 ; Standard

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Number of Poles: 2 ; Shunt Trip

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Number of Poles: 2 ; Standard

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Number of Poles: 3 ; Shunt Trip

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Number of Poles: 3 ; Standard

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QOU Series, Unit-Mount Square D Miniature Circuit Breakers

QOU Series, Unit-Mount Square D Miniature Circuit Breakers
These QOU series miniature circuit breakers can be surface-, flush-, or DIN rail-mounted in panelboards and load centers to free up space wherever it's needed. They interrupt currents when overloads are detected in the circuit and can switch on both AC and DC electrical systems.

Number of Poles: 1 ; High Interrupting Capacity

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Number of Poles: 1 ; High Magnetic

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Number of Poles: 1 ; Shunt Trip

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Number of Poles: 1 ; Standard

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Number of Poles: 2 ; High Interrupting Capacity

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Number of Poles: 2 ; Shunt Trip

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Number of Poles: 2 ; Standard

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Number of Poles: 3 ; High Interrupting Capacity

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Number of Poles: 3 ; Shunt Trip

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Number of Poles: 3 ; Standard

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HOM Series, Plug-In Square D Miniature Circuit Breakers

HOM Series, Plug-In Square D Miniature Circuit Breakers
These HOM series miniature circuit breakers plug into place in Homeline load centers without requiring DIN rail or bolts, so they're easier to install than unit-mount or bolt-on breakers. They interrupt currents when low-level faults are detected in the circuit. They connect to the power supply through bus bars, which eliminates the need to pigtail wires and helps organize the load center.

Number of Poles: 1 ; Arc Fault Circuit Interrupter

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Number of Poles: 1 ; Combination Arc Fault Circuit Interrupter

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Number of Poles: 1 ; Ground Fault Circuit Interrupter (Class A - 5mA)

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Number of Poles: 1 ; Standard

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Number of Poles: 1 ; Tandem

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Number of Poles: 2 ; Ground Fault Circuit Interrupter (Class A - 5mA)

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Number of Poles: 2 ; Standard

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Number of Poles: 2 ; Tandem

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QOT Series, Plug-In Square D Miniature Circuit Breakers

QOT Series, Plug-In Square D Miniature Circuit Breakers
These QOT series miniature circuit breakers plug into place in NQOD panelboards and QO load centers without requiring DIN rail or bolts, so they're easier to install than bolt-on and unit-mount breakers. These breakers are tandem, so they have two smaller breakers built into one regular-sized breaker body, providing two separate circuits in the space of one slot. They interrupt currents when low-level faults are detected in the circuit. They connect to the power supply through bus bars, which eliminates the need to pigtail wires and helps organize the panelboard or load center.

Number of Poles: 1 ; Tandem

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.