Duplex Circuit Breakers

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SIEM Q2020NC

Part #SIEM Q2020NC 20/20AMP 1POLE 120VAC (2)20AMP CIRCUITS PLUG-IN CIRCUIT BREAKER FITS NEW PANELS AND OLD Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature Non-Current Limiting, 120 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, QT F

MFG #Q2020NC

199 in Stock. More available 02/23/2026

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$65.64/EA

Regular Price: $97.00/EA, you save $31.36 (32%)

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q1520NC

Part #SIEM Q1520NC 15/20AMP 1POLE 120VAC (1)15AMP (1) 20AMP CIRCUIT PLUG-IN CIRCUIT BREAKER FOR REPLACEMENT USE ONLY IN PANELS MANUFACTURED BEFORE 1968 Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature Non-Current Limiting, 120 VAC,

MFG #Q1520NC

49 in Stock. More available 02/23/2026

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$68.56/EA

Regular Price: $97.00/EA, you save $28.44 (29%)

QTY

U/M

EA BX /12

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SIEM Q2020

Part #SIEM Q2020 20/20AMP 1POLE 120VAC (2)20AMP CIRCUITS PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature, 120 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, QT Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Togg

MFG #Q2020

112 in Stock. More available 02/09/2026 and 02/23/2026

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$34.35/EA

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q1515

Part #SIEM Q1515 15/15AMP 1POLE 120VAC (2)15AMP 1POLE CIRCUITS PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature, 120 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, QT Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph

MFG #Q1515

110 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$34.35/EA

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

Compare

SIEM Q1515NC

Part #SIEM Q1515NC 15/15AMP 1POLE 120VAC (2)15AMP 1POLE CIRCUITS PLUG-IN CIRCUIT BREAKER FOR REPLACEMENT USE ONLY IN PANELS MANUFACTURED BEFORE 1968 Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature Non-Current Limiting, 120 VAC, 15

MFG #Q1515NC

101 in Stock. More available 02/12/2026 and 02/23/2026

VIEW BRANCH INVENTORY

$67.07/EA

Regular Price: $97.00/EA, you save $29.93 (31%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

Compare

SIEM Q2020NC

Part #SIEM Q2020NC 20/20AMP 1POLE 120VAC (2)20AMP CIRCUITS PLUG-IN CIRCUIT BREAKER FITS NEW PANELS AND OLD Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature Non-Current Limiting, 120 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, QT F

MFG #Q2020NC

199 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$65.64/EA

Regular Price: $97.00/EA, you save $31.36 (32%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

Compare

SIEM Q1520NC

Part #SIEM Q1520NC 15/20AMP 1POLE 120VAC (1)15AMP (1) 20AMP CIRCUIT PLUG-IN CIRCUIT BREAKER FOR REPLACEMENT USE ONLY IN PANELS MANUFACTURED BEFORE 1968 Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature Non-Current Limiting, 120 VAC,

MFG #Q1520NC

49 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$68.56/EA

Regular Price: $97.00/EA, you save $28.44 (29%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

Compare

SIEM Q2020

Part #SIEM Q2020 20/20AMP 1POLE 120VAC (2)20AMP CIRCUITS PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature, 120 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, QT Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Togg

MFG #Q2020

112 in Stock. More available 02/09/2026 and 02/23/2026

VIEW BRANCH INVENTORY

$34.35/EA

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

Compare

SIEM Q1515

Part #SIEM Q1515 15/15AMP 1POLE 120VAC (2)15AMP 1POLE CIRCUITS PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature, 120 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, QT Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph

MFG #Q1515

110 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$34.35/EA

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

Compare

SIEM Q1515NC

Part #SIEM Q1515NC 15/15AMP 1POLE 120VAC (2)15AMP 1POLE CIRCUITS PLUG-IN CIRCUIT BREAKER FOR REPLACEMENT USE ONLY IN PANELS MANUFACTURED BEFORE 1968 Siemens Molded Case Circuit Breaker, Type QT Duplex Low Voltage Miniature Non-Current Limiting, 120 VAC, 15

MFG #Q1515NC

101 in Stock. More available 02/12/2026 and 02/23/2026

VIEW BRANCH INVENTORY

$67.07/EA

Regular Price: $97.00/EA, you save $29.93 (31%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

Results Per Page

12243648