Duplex Circuit Breakers

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SIEM Q2020NC

Part #SIEM Q2020NC 20/20AMP 1POLE 120VAC (2)20AMP 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, 20 A, 60

MFG #Q2020NC

157 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$787.68/BX

Regular Price: $1164.00/BX, you save $376.32 (32%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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

89 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$412.25/BX

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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

109 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$804.80/BX

Regular Price: $1164.00/BX, you save $359.20 (31%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

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

9 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$822.68/BX

Regular Price: $1164.00/BX, you save $341.32 (29%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

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

182 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$412.25/BX

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

SIEM Q2020NC

Part #SIEM Q2020NC 20/20AMP 1POLE 120VAC (2)20AMP 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, 20 A, 60

MFG #Q2020NC

157 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$787.68/BX

Regular Price: $1164.00/BX, you save $376.32 (32%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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

89 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$412.25/BX

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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

109 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$804.80/BX

Regular Price: $1164.00/BX, you save $359.20 (31%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

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

9 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$822.68/BX

Regular Price: $1164.00/BX, you save $341.32 (29%)

QTY

U/M

EA BX /12

ADD TO CARTADD TO LIST

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

182 in Stock. More available 12/23/2025 and 01/11/2026

VIEW BRANCH INVENTORY

$412.25/BX

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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8162448