QOB Bolt-on Series

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SQD QOB320

Part #SQD QOB320 3P 240V 20A CB BOLT ON Square Dâ„¢, QOB320, Miniature Circuit Breaker, Standard, 240 VAC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Pressure Plate Connection, 14 to 8 AWG Wire

MFG #QOB320

12 in Stock. More available 04/11/2026

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$142.63/EA

Regular Price: $222.39/EA, you save $79.76 (36%)

QTY

U/M

EA BX /3

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SQD QOB260

Part #SQD QOB260 60AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB260, Miniature Circuit Breaker, Standard, 120/240 VAC, 60 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Box L

MFG #QOB260

13 in Stock. More available 04/11/2026

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$43.41/EA

Regular Price: $72.00/EA, you save $28.59 (40%)

QTY

U/M

EA BX /5

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SQD QOB130

Part #SQD QOB130 SP-120/240V-30A CB Square Dâ„¢, QOB130, Miniature Circuit Breaker, Standard, 120/240 VAC, 30 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Pressure Plate Connection, 14 to 8 AWG Wire

MFG #QOB130

47 in Stock. More available 04/11/2026

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$24.80/EA

Regular Price: $32.20/EA, you save $7.40 (23%)

QTY

U/M

EA BX /10

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SQD QOB230

Part #SQD QOB230 30AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB230, 2-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 30 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole,

MFG #QOB230

73 in Stock. More available 04/11/2026

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$43.80/EA

Regular Price: $72.00/EA, you save $28.20 (39%)

QTY

U/M

EA BX /5

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SQD QOB220

Part #SQD QOB220 20AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB220, 2-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole,

MFG #QOB220

76 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$43.80/EA

Regular Price: $72.00/EA, you save $28.20 (39%)

QTY

U/M

EA BX /5

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SQD QOB115

Part #SQD QOB115 15A 1P BOLT-ON BREAKER Square Dâ„¢, QOB115, 1-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 15 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Pressure Plate Connection, 1

MFG #QOB115

12 in Stock. More available 04/11/2026

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$22.32/EA

Regular Price: $32.20/EA, you save $9.88 (31%)

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SQD QOB250

Part #SQD QOB250 50AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB250, Miniature Circuit Breaker, Standard, 120/240 VAC, 50 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Box L

MFG #QOB250

33 in Stock. More available 04/11/2026

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$46.20/EA

Regular Price: $72.00/EA, you save $25.80 (36%)

QTY

U/M

EA BX /5

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SQD QOB120

Part #SQD QOB120 20AMP 1POLE 120VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB120, 1-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph

MFG #QOB120

193 in Stock. More available 04/11/2026

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$23.94/EA

Regular Price: $32.20/EA, you save $8.26 (26%)

QTY

U/M

EA BX /10

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SQD QOB320

Part #SQD QOB320 3P 240V 20A CB BOLT ON Square Dâ„¢, QOB320, Miniature Circuit Breaker, Standard, 240 VAC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Pressure Plate Connection, 14 to 8 AWG Wire

MFG #QOB320

12 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$142.63/EA

Regular Price: $222.39/EA, you save $79.76 (36%)

QTY

U/M

EA BX /3

ADD TO CARTADD TO LIST

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SQD QOB260

Part #SQD QOB260 60AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB260, Miniature Circuit Breaker, Standard, 120/240 VAC, 60 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Box L

MFG #QOB260

13 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$43.41/EA

Regular Price: $72.00/EA, you save $28.59 (40%)

QTY

U/M

EA BX /5

ADD TO CARTADD TO LIST

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SQD QOB130

Part #SQD QOB130 SP-120/240V-30A CB Square Dâ„¢, QOB130, Miniature Circuit Breaker, Standard, 120/240 VAC, 30 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Pressure Plate Connection, 14 to 8 AWG Wire

MFG #QOB130

47 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$24.80/EA

Regular Price: $32.20/EA, you save $7.40 (23%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

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SQD QOB230

Part #SQD QOB230 30AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB230, 2-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 30 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole,

MFG #QOB230

73 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$43.80/EA

Regular Price: $72.00/EA, you save $28.20 (39%)

QTY

U/M

EA BX /5

ADD TO CARTADD TO LIST

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SQD QOB220

Part #SQD QOB220 20AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB220, 2-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole,

MFG #QOB220

76 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$43.80/EA

Regular Price: $72.00/EA, you save $28.20 (39%)

QTY

U/M

EA BX /5

ADD TO CARTADD TO LIST

Compare

SQD QOB115

Part #SQD QOB115 15A 1P BOLT-ON BREAKER Square Dâ„¢, QOB115, 1-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 15 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Pressure Plate Connection, 1

MFG #QOB115

12 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$22.32/EA

Regular Price: $32.20/EA, you save $9.88 (31%)

QTY

ADD TO CARTADD TO LIST

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SQD QOB250

Part #SQD QOB250 50AMP 2POLE 120/240VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB250, Miniature Circuit Breaker, Standard, 120/240 VAC, 50 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Box L

MFG #QOB250

33 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$46.20/EA

Regular Price: $72.00/EA, you save $25.80 (36%)

QTY

U/M

EA BX /5

ADD TO CARTADD TO LIST

Compare

SQD QOB120

Part #SQD QOB120 20AMP 1POLE 120VAC BOLT-ON CIRCUIT BREAKER QOB STYLE Square Dâ„¢, QOB120, 1-Pole Miniature Circuit Breaker, Standard, 240 VAC, 48 VDC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QOB Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph

MFG #QOB120

193 in Stock. More available 04/11/2026

VIEW BRANCH INVENTORY

$23.94/EA

Regular Price: $32.20/EA, you save $8.26 (26%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Results Per Page

12243648