Molded Case Circuit Breakers

1045 products

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Square D MA3800F 800 Amp 3 Pole 600V Circuit Breaker - Cosmetic FlawSquare D MA3800F 800 Amp 3 Pole 600V Circuit Breaker - Cosmetic Flaw
Square D Square D MA3800F 800 Amp 3 Pole 600V Circuit Breaker - Cosmetic Flaw
$279.99
 Only 1 unit left
Square D MAP36400 400 Amp 3 Pole 600V Type MAL Circuit BreakerSquare D MAP36400 400 Amp 3 Pole 600V Type MAL Circuit Breaker
Square D Square D MAP36400 400 Amp 3 Pole 600V Type MAL Circuit Breaker
$299.99
 Sold out
Square D MAP36600 600 Amp 3 Pole 600V Type MAL Circuit BreakerSquare D MAP36600 600 Amp 3 Pole 600V Type MAL Circuit Breaker
Square D Square D MAP36600 600 Amp 3 Pole 600V Type MAL Circuit Breaker
From $344.99
 Sold out
Square D ME836LSIG 800 Amp 3 Pole 600V Series 3 Circuit BreakerSquare D ME836LSIG 800 Amp 3 Pole 600V Series 3 Circuit Breaker
Square D Square D ME836LSIG 800 Amp 3 Pole 600V Series 3 Circuit Breaker
$1,099.99
 Only 1 unit left
Square D PAF362000DC1680 2000 Amp 3 Pole Circuit Breaker w/Aux SwitchSquare D PAF362000DC1680 2000 Amp 3 Pole Circuit Breaker w/Aux Switch
Square D Square D PAF362000DC1680 2000 Amp 3 Pole Circuit Breaker w/Aux Switch
$2,899.99
 In stock, 2 units
Square D PAF362000DCA680 2000 Amp 3 Pole Circuit Breaker w/ Aux SwtichSquare D PAF362000DCA680 2000 Amp 3 Pole Circuit Breaker w/ Aux Swtich
Square D Square D PAF362000DCA680 2000 Amp 3 Pole Circuit Breaker w/ Aux Swtich
$2,899.99
 Only 1 unit left
Square D PGA36080U31A 800 Amp 3 Pole 600V Type PG800 I-Line Circuit BreakerSquare D PGA36080U31A 800 Amp 3 Pole 600V Type PG800 I-Line Circuit Breaker
Square D Square D PGA36080U31A 800 Amp 3 Pole 600V Type PG800 I-Line Circuit Breaker
$2,999.99
 Sold out
Square D PGA36080U33A 800 Amp 3 Pole 600V Type PG800 PowerPact Circuit BreakerSquare D PGA36080U33A 800 Amp 3 Pole 600V Type PG800 PowerPact Circuit Breaker
Square D Square D PGA36080U33A 800 Amp 3 Pole 600V Type PG800 PowerPact Circuit Breaker
From $2,999.99
 Only 1 unit left
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Square D PowerPact QBL22150 150 Amp 2 Pole 120/240V QB150 Circuit BreakerSquare D PowerPact QBL22150 150 Amp 2 Pole 120/240V QB150 Circuit Breaker
Square D Square D PowerPact QBL22150 150 Amp 2 Pole 120/240V QB150 Circuit Breaker
From $124.99
 In stock, 6 units
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Square D Q12100 100 Amp 2 Pole 10kA Q1 Style Circuit BreakerSquare D Q12100 100 Amp 2 Pole 10kA Q1 Style Circuit Breaker
Square D Square D Q12100 100 Amp 2 Pole 10kA Q1 Style Circuit Breaker
$299.99
 Sold out
Square D Q1L2125 125 Amp 2 Pole 120/240V Circuit BreakerSquare D Q1L2125 125 Amp 2 Pole 120/240V Circuit Breaker
Square D Square D Q1L2125 125 Amp 2 Pole 120/240V Circuit Breaker
$299.99
 Sold out
Square D Q2-32150/Q232150 150 Amp 3 Pole 240V Circuit Breaker - Cosmetic FlawSquare D Q2-32150/Q232150 150 Amp 3 Pole 240V Circuit Breaker - Cosmetic Flaw
Square D Square D Q2-32150/Q232150 150 Amp 3 Pole 240V Circuit Breaker - Cosmetic Flaw
$84.99
 Only 1 unit left
Square D Q2-32150/Q232150 150 Amp 3 Pole 240V Type Q2 Circuit BreakerSquare D Q2-32150/Q232150 150 Amp 3 Pole 240V Type Q2 Circuit Breaker
Square D Square D Q2-32150/Q232150 150 Amp 3 Pole 240V Type Q2 Circuit Breaker
$99.99
 Only 1 unit left
Square D Q2-32225 225 Amp 3 Pole 240V Type Q2 I Line Circuit BreakerSquare D Q2-32225 225 Amp 3 Pole 240V Type Q2 I Line Circuit Breaker
Square D Square D Q2-32225 225 Amp 3 Pole 240V Type Q2 I Line Circuit Breaker
From $129.99
 In stock, 6 units
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Square D Q2L2150 150 Amp 2 Pole 120/240VAC Circuit BreakerSquare D Q2L2150 150 Amp 2 Pole 120/240VAC Circuit Breaker
Square D Square D Q2L2150 150 Amp 2 Pole 120/240VAC Circuit Breaker
$139.99
 Only 1 unit left
Square D Q2L2200 200 Amp 2 Pole 120/240V Type Q2L Circuit BreakerSquare D Q2L2200 200 Amp 2 Pole 120/240V Type Q2L Circuit Breaker
Square D Square D Q2L2200 200 Amp 2 Pole 120/240V Type Q2L Circuit Breaker
$229.99
 Sold out
Square D Q2L3125 125 Amp 3 Pole 240V Circuit BreakerSquare D Q2L3125 125 Amp 3 Pole 240V Circuit Breaker
Square D Square D Q2L3125 125 Amp 3 Pole 240V Circuit Breaker
$359.99
 In stock, 5 units
Square D Q2L3200 200 Amp 3 Pole 120/240V Q2L Circuit BreakerSquare D Q2L3200 200 Amp 3 Pole 120/240V Q2L Circuit Breaker
Square D Square D Q2L3200 200 Amp 3 Pole 120/240V Q2L Circuit Breaker
$359.99
 In stock, 7 units
Square D Q2L3225 225 Amp 3 Pole 120/240V Type Q2L Circuit BreakerSquare D Q2L3225 225 Amp 3 Pole 120/240V Type Q2L Circuit Breaker
Square D Square D Q2L3225 225 Amp 3 Pole 120/240V Type Q2L Circuit Breaker
From $89.99
 In stock, 12 units
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Square D Q2M-2150MT 150 Amp 2 Pole 240V Type Q2MT Bolt-On Circuit BreakerSquare D Q2M-2150MT 150 Amp 2 Pole 240V Type Q2MT Bolt-On Circuit Breaker
Square D Square D Q2M-2150MT 150 Amp 2 Pole 240V Type Q2MT Bolt-On Circuit Breaker
$249.99
 Only 1 unit left
Square D Q2M-2225-MT 225A 2 Pole 120/240V Q2M Circuit BreakerSquare D Q2M-2225-MT 225A 2 Pole 120/240V Q2M Circuit Breaker
Square D Square D Q2M-2225-MT 225A 2 Pole 120/240V Q2M Circuit Breaker
$199.99
 Only 1 unit left
Square D Q2M2200MT 200 Amp 2 Pole 120/240V Circuit BreakerSquare D Q2M2200MT 200 Amp 2 Pole 120/240V Circuit Breaker
Square D Square D Q2M2200MT 200 Amp 2 Pole 120/240V Circuit Breaker
$309.99
 In stock, 4 units
Square D Q2M2200MT 200 Amp 2 Pole 120/240V Circuit Breaker - FlawSquare D Q2M2200MT 200 Amp 2 Pole 120/240V Circuit Breaker - Flaw
Square D Square D Q2M2200MT 200 Amp 2 Pole 120/240V Circuit Breaker - Flaw
$289.99
 In stock, 2 units
Square D QBL32225 225 Amp 3 Pole 120/240V QB 225 Power Pact Circuit BreakerSquare D QBL32225 225 Amp 3 Pole 120/240V QB 225 Power Pact Circuit Breaker
Square D Square D QBL32225 225 Amp 3 Pole 120/240V QB 225 Power Pact Circuit Breaker
From $319.99
 Sold out
Square D QDL32200 200 Amp 3 Pole 120/240V QD Circuit BreakerSquare D QDL32200 200 Amp 3 Pole 120/240V QD Circuit Breaker
Square D Square D QDL32200 200 Amp 3 Pole 120/240V QD Circuit Breaker
$139.99
 Only 1 unit left
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Square D QDL32200RP 200 Amp 3 Pole 120/240V QD Circuit BreakerSquare D QDL32200RP 200 Amp 3 Pole 120/240V QD Circuit Breaker
Square D Square D QDL32200RP 200 Amp 3 Pole 120/240V QD Circuit Breaker
$139.99
 Only 1 unit left
Square D QO-FP Circuit Breaker Filler Plates 2 1/2" x 3/4"Square D QO-FP Circuit Breaker Filler Plates 2 1/2" x 3/4"
Square D Square D QO-FP Circuit Breaker Filler Plates 2 1/2" x 3/4"
From $1.99
 In stock, 2 units
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Square D QO115 15 Amp 1 Pole 120/240V Circuit Breaker - Cosmetic FlawSquare D QO115 15 Amp 1 Pole 120/240V Circuit Breaker - Cosmetic Flaw
Square D Square D QO115 15 Amp 1 Pole 120/240V Circuit Breaker - Cosmetic Flaw
$2.99
 In stock, 56 units
Square D QO115CAFI 15 Amp 1 Pole 120V Combination AFCI BreakerSquare D QO115CAFI 15 Amp 1 Pole 120V Combination AFCI Breaker
Square D Square D QO115CAFI 15 Amp 1 Pole 120V Combination AFCI Breaker
From $11.99
 In stock, 10 units
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Square D QO115GFI 15 Amp 1 Pole 120V GFCI Circuit Breaker - New StyleSquare D QO115GFI 15 Amp 1 Pole 120V GFCI Circuit Breaker - New Style
Square D Square D QO115GFI 15 Amp 1 Pole 120V GFCI Circuit Breaker - New Style
From $19.99
 In stock, 5 units
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Square D QO115PCAFI 15 Amp 1 Pole 120V Plug-On Neutral BreakerSquare D QO115PCAFI 15 Amp 1 Pole 120V Plug-On Neutral Breaker
Square D Square D QO115PCAFI 15 Amp 1 Pole 120V Plug-On Neutral Breaker
From $11.99
 Sold out
Square D QO120 20 Amp 1 Pole 120/240V Circuit Breaker - Yellow FaceSquare D QO120 20 Amp 1 Pole 120/240V Circuit Breaker - Yellow Face
Square D Square D QO120 20 Amp 1 Pole 120/240V Circuit Breaker - Yellow Face
From $6.99
 In stock, 1480 units
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Square D QO1201021 20 Amp 1 Pole 120/240V Breaker w/ Shunt TripSquare D QO1201021 20 Amp 1 Pole 120/240V Breaker w/ Shunt Trip
Square D Square D QO1201021 20 Amp 1 Pole 120/240V Breaker w/ Shunt Trip
$109.99
 Sold out
Square D QO120AFI 20 Amp 1 Pole 120V AFCI Circuit BreakerSquare D QO120AFI 20 Amp 1 Pole 120V AFCI Circuit Breaker
Square D Square D QO120AFI 20 Amp 1 Pole 120V AFCI Circuit Breaker
From $19.99
 Sold out
Square D QO120AFI 20 Amp 1 Pole 120V AFCI Circuit Breaker - Cosmetic FlawSquare D QO120AFI 20 Amp 1 Pole 120V AFCI Circuit Breaker - Cosmetic Flaw
Square D Square D QO120AFI 20 Amp 1 Pole 120V AFCI Circuit Breaker - Cosmetic Flaw
From $19.99
 Sold out
Square D QO120CAFI 20 Amp 1 Pole 120V Type QO AFI BreakerSquare D QO120CAFI 20 Amp 1 Pole 120V Type QO AFI Breaker
Square D Square D QO120CAFI 20 Amp 1 Pole 120V Type QO AFI Breaker
From $29.99
 In stock, 5 units
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Square D QO120EM 20 Amp 1 Pole 120/240V Circuit Breaker - Cosmetic FlawSquare D QO120EM 20 Amp 1 Pole 120/240V Circuit Breaker - Cosmetic Flaw
Square D Square D QO120EM 20 Amp 1 Pole 120/240V Circuit Breaker - Cosmetic Flaw
$14.99
 In stock, 2 units
Square D QO120PAFGF 20 Amp 1 Pole 120V AFCI Circuit BreakerSquare D QO120PAFGF 20 Amp 1 Pole 120V AFCI Circuit Breaker
Square D Square D QO120PAFGF 20 Amp 1 Pole 120V AFCI Circuit Breaker
From $19.99
 Sold out
Square D QO120PCAFI 20 Amp 1 Pole 120V AFCI Plug on Neutral Circuit BreakerSquare D QO120PCAFI 20 Amp 1 Pole 120V AFCI Plug on Neutral Circuit Breaker
Square D Square D QO120PCAFI 20 Amp 1 Pole 120V AFCI Plug on Neutral Circuit Breaker
From $14.99
 Sold out
Square D QO150 50 Amp 1 Pole 120/240V Circuit Breaker - Black FaceSquare D QO150 50 Amp 1 Pole 120/240V Circuit Breaker - Black Face
Square D Square D QO150 50 Amp 1 Pole 120/240V Circuit Breaker - Black Face
$3.99
 In stock, 102 units
Square D QO200 60 Amp 2 Pole 240V Circuit Breaker - Cosmetic FlawSquare D QO200 60 Amp 2 Pole 240V Circuit Breaker - Cosmetic Flaw
Square D Square D QO200 60 Amp 2 Pole 240V Circuit Breaker - Cosmetic Flaw
From $14.99
 In stock, 14 units
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Square D QO2100 100 Amp 2 Pole 120/240V Circuit Breaker - Cosmetic FlawSquare D QO2100 100 Amp 2 Pole 120/240V Circuit Breaker - Cosmetic Flaw
Square D Square D QO2100 100 Amp 2 Pole 120/240V Circuit Breaker - Cosmetic Flaw
$32.99
 In stock, 8 units
Square D QO2100 100 Amp 2 Pole 120/240V Circuit Breaker - Yellow FaceSquare D QO2100 100 Amp 2 Pole 120/240V Circuit Breaker - Yellow Face
Square D Square D QO2100 100 Amp 2 Pole 120/240V Circuit Breaker - Yellow Face
From $33.99
 In stock, 3 units
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Square D QO2125 125 Amp 2 Pole 120/240V Circuit BreakerSquare D QO2125 125 Amp 2 Pole 120/240V Circuit Breaker
Square D Square D QO2125 125 Amp 2 Pole 120/240V Circuit Breaker
From $55.99
 Sold out
Square D QO220CAFI 20 Amp 2 Pole 120/240V AFCI Circuit BreakerSquare D QO220CAFI 20 Amp 2 Pole 120/240V AFCI Circuit Breaker
Square D Square D QO220CAFI 20 Amp 2 Pole 120/240V AFCI Circuit Breaker
$139.99
 Only 1 unit left
Square D QO250 50 Amp 2 Pole 120/240V Circuit Breaker - Black FaceSquare D QO250 50 Amp 2 Pole 120/240V Circuit Breaker - Black Face
Square D Square D QO250 50 Amp 2 Pole 120/240V Circuit Breaker - Black Face
$8.99
 In stock, 339 units
Square D QO260 60 Amp 2 Pole 120/240V Circuit Breaker - Black FaceSquare D QO260 60 Amp 2 Pole 120/240V Circuit Breaker - Black Face
Square D Square D QO260 60 Amp 2 Pole 120/240V Circuit Breaker - Black Face
$7.99
 In stock, 304 units
Square D QO260 60 Amp 2 Pole 120/240V Circuit Breaker - Yellow FaceSquare D QO260 60 Amp 2 Pole 120/240V Circuit Breaker - Yellow Face
Square D Square D QO260 60 Amp 2 Pole 120/240V Circuit Breaker - Yellow Face
From $12.99
 In stock, 344 units
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