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Molded Case Circuit Breakers

1,498 products

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Siemens NGB3B100B Type NGB Low Voltage Molded Case Circuit Breaker, 600Y/347 V AC, 100 A, 14 kA Interrupt, 3 Poles, Thermal Magnetic Trip

Siemens NGB3B100B Type NGB Low Voltage Molded Case Circuit…

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Siemens NGB3B125 Type NGB Low Voltage Molded Case Circuit Breaker, 600Y/347 V AC, 125 A, 14 kA Interrupt, 3 Poles, Thermal Magnetic Trip

Siemens NGB3B125 Type NGB Low Voltage Molded Case Circuit…

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Siemens NGG2B015 Low Voltage Molded Case Circuit Breaker, 600Y/347/480 V AC, 15 A, 14 to 25 kA Interrupt, 2 Poles, Thermal Magnetic Trip

Siemens NGG2B015 Low Voltage Molded Case Circuit Breaker, 600Y/347/480…

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Siemens NGG3B100L Type NGG Low Voltage Molded Case Circuit Breaker, 480 V AC, 100 A, 25 kA Interrupt, 3 Poles, Thermal Magnetic Trip

Siemens NGG3B100L Type NGG Low Voltage Molded Case Circuit…

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Siemens NXD63B120 SentronTM NXD63B120 Type NXD6 Low Voltage Molded Case Circuit Breaker, 600 V AC/500 V DC, 1200 A, 25 kA Interrupt, 3 Poles, Thermal Magnetic Trip

Siemens NXD63B120 SentronTM NXD63B120 Type NXD6 Low Voltage Molded…

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Siemens Q110 Low Voltage Miniature Residential Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 10 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q110 Low Voltage Miniature Residential Molded Case Circuit…

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Siemens Q115 Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 15 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q115 Molded Case Circuit Breaker With Insta-Wire, 120…

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Siemens Q11500S01 Low Voltage Miniature Residential Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 15 A, 10 kA Interrupt, 1 Pole, Thermal Magnetic Trip

Siemens Q11500S01 Low Voltage Miniature Residential Molded Case Circuit…

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Siemens Q115DF Type QFGA2 AFCI/GFCI Combination Circuit Breaker, 120 V AC, 15 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q115DF Type QFGA2 AFCI/GFCI Combination Circuit Breaker, 120…

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Siemens Q115DFN Low Voltage Arc-Fault/Ground-Fault Dual Function Circuit Breaker, 120 V, 15 A, 10 kA at 120 V Interrupt, 1 Pole

Siemens Q115DFN Low Voltage Arc-Fault/Ground-Fault Dual Function Circuit Breaker,…

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Siemens Q115H Low Voltage Miniature Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 15 A, 22 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q115H Low Voltage Miniature Molded Case Circuit Breaker…

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Siemens Q120 Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 20 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q120 Molded Case Circuit Breaker With Insta-Wire, 120…

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Siemens Q12000S01 Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 20 A, 10 kA Interrupt, 1 Pole, Thermal Magnetic Trip

Siemens Q12000S01 Molded Case Circuit Breaker With Insta-Wire, 120…

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Siemens Q120DF Type QFGA2 AFCI/GFCI Circuit Breaker, 120 V AC, 20 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q120DF Type QFGA2 AFCI/GFCI Circuit Breaker, 120 V…

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Siemens Q120DFN Low Voltage Arc-Fault/Ground-Fault Dual Function Circuit Breaker, 120 V, 20 A, 10 kA at 120 V Interrupt, 1 Pole

Siemens Q120DFN Low Voltage Arc-Fault/Ground-Fault Dual Function Circuit Breaker,…

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Siemens Q120H Molded Case Circuit Breaker, 120 V AC, 20 A, 22 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q120H Molded Case Circuit Breaker, 120 V AC,…

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Siemens Q125 Low Voltage Miniature Residential Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 25 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q125 Low Voltage Miniature Residential Molded Case Circuit…

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Siemens Q130 Low Voltage Miniature Residential Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 30 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q130 Low Voltage Miniature Residential Molded Case Circuit…

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Siemens Q135 Low Voltage Miniature Residential Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 35 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q135 Low Voltage Miniature Residential Molded Case Circuit…

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Siemens Q140 Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 40 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q140 Molded Case Circuit Breaker With Insta-Wire, 120…

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Siemens Q145 Low Voltage Miniature Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 45 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q145 Low Voltage Miniature Molded Case Circuit Breaker…

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Siemens Q150 Molded Case Circuit Breaker With Insta-Wire, 120 V AC, 50 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q150 Molded Case Circuit Breaker With Insta-Wire, 120…

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Siemens Q1515 Type QT Duplex Low Voltage Miniature Molded Case Circuit Breaker, 120 V AC, 15 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q1515 Type QT Duplex Low Voltage Miniature Molded…

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Siemens Q1515NC Type QT Duplex Low Voltage Miniature Non-Current Limiting Molded Case Circuit Breaker, 120 V AC, 15 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip

Siemens Q1515NC Type QT Duplex Low Voltage Miniature Non-Current…

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