"Q" Plug-in Branch Breakers

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SIEM Q120

Part #SIEM Q120 20AMP 1POLE 120VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 20 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Plug-In Mounting, 40 deg C, 3.6 in W x 12.8 in D x 3.5 in H Dimensions

MFG #Q120

2211 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$13.49/EA

Regular Price: $15.90/EA, you save $2.42 (15%)

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q230

Part #SIEM Q230 30AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 30 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 3 in W x 3 in D x 2 in H Dimensions

MFG #Q230

587 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$29.56/EA

Regular Price: $32.70/EA, you save $3.14 (10%)

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q260

Part #SIEM Q260 60AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens, Q260, Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 60 A, 60 Hz Frequency, 10 kA Interrupt, 2 in Frame, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/P

MFG #Q260

340 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$30.16/EA

Regular Price: $32.70/EA, you save $2.54 (8%)

QTY

U/M

EA BX /6

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SIEM Q120DF

Part #SIEM Q120DF 20AMP 1POLE 120VAC AFCI/GFCI PLUG-IN CIRCUIT BREAKER 10kAIC Siemens Combination AFCI/GFCI Circuit Breaker, Type QFGA2 Dual Function, 120 VAC, 20 A, 10 kA Interrupt, LI/Thermal Magnetic Trip, 5 mA Trip, 1 Pole, 1, 14 to 8 AWG, 12 to 8 AWG

MFG #Q120DF

57 in Stock. More available 04/27/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$134.25/EA

QTY

U/M

EA BX /10

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SIEM Q240

Part #SIEM Q240 40AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120/240 VAC, 40 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 3 in W x 3 in D x 2 in H Dimensions

MFG #Q240

300 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$30.16/EA

Regular Price: $32.70/EA, you save $2.54 (8%)

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q22020CT2

Part #SIEM Q22020CT2 20AMP 2POLE 120/240VAC (2)2OAMP 2POLE COMMON TRIP PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Low Voltage Miniature Quadplex, Series: Quadplex, 120/240 VAC, 20 A, 10 kA Interrupt, QT Frame, Thermal/Magnetic Tri

MFG #Q22020CT2

9 in Stock. More available 05/09/2026 and 05/11/2026

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$110.59/EA

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q115DF

Part #SIEM Q115DF 15AMP 1POLE 120VAC AFCI/GFCI PLUG-IN CIRCUIT BREAKER 10kAIC Siemens Combination AFCI/GFCI Circuit Breaker, Type QFGA2, 120 VAC, 15 A, 10 kA Interrupt, Thermal/Magnetic Trip, 1 Pole, 1 ph, Plug-In Connection, 1 in L x 3 in W x 4-1/2 in H D

MFG #Q115DF

43 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$137.23/EA

QTY

U/M

EA BX /10

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SIEM Q115

Part #SIEM Q115 15AMP 1POLE 120VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, 120 VAC, 15 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Plug-In Connection, 14 to 12 AWG, 12 to 10 AWG Wire, NEMA

MFG #Q115

1258 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$13.49/EA

Regular Price: $15.90/EA, you save $2.42 (15%)

QTY

U/M

EA BX /12CA /48CS /48

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SIEM QSA2020SPD

Part #SIEM QSA2020SPD 20AMP (2)20AMP 1POLE 120/240VAC PLUG-IN CIRCUIT BREAKERS W/SURGE PROTECTIVE DEVICE (ALL BRANCH CIRCUITS) Siemens Surge Protection Circuit Breaker, Molded Case, 120/240 VAC, 15 A, 10 kA Interrupt, Thermal/Magnetic Trip, 1 Pole, Plug-In

MFG #QSA2020SPD

24 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$357.11/EA

Regular Price: $822.00/EA, you save $464.89 (57%)

QTY

U/M

EA BX /28

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SIEM Q220

Part #SIEM Q220 20AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 20 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 2 in W x 3 in D x 3 in H Dimensions

MFG #Q220

854 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$29.56/EA

Regular Price: $32.70/EA, you save $3.14 (10%)

QTY

U/M

EA BX /6CA /24CS /24

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SIEM QF120A

Part #SIEM QF120A 20AMP 1POLE 120VAC GFCI PLUG-IN CIRCUIT BREAKER WITH PIGTAIL Siemens Ground Fault Circuit Breaker With Self Test, Type GFCI Class A, 120 VAC, 20 A, 10 kA Interrupt, QPF2 Frame, Thermal Magnetic Trip, 5 mA Trip, 1 Pole, Plug-In/Line and Lo

MFG #QF120A

65 in Stock. More available 05/11/2026

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$112.38/EA

Regular Price: $236.00/EA, you save $123.62 (52%)

QTY

U/M

EA BX /12

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SIEM Q320

Part #SIEM Q320 20AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Low Voltage Miniature Residential, 240 VAC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection, 14

MFG #Q320

27 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$175.47/EA

Regular Price: $207.00/EA, you save $31.53 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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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

192 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$36.50/EA

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q3100

Part #SIEM Q3100 100AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Low Voltage Miniature Residential, 240 VAC, 100 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection,

MFG #Q3100

19 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$261.93/EA

Regular Price: $309.00/EA, you save $47.07 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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SIEM QA120AFC

Part #SIEM QA120AFC 20AMP 1POLE 120VAC AFCI PLUG-IN CIRCUIT BREAKER Siemens SpeedFaxâ„¢, QA120AFCCSA, Arc-Fault Circuit Breaker, Low Voltage, 120 VAC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QAF2 Frame, LI/Thermal Magnetic Trip, 1 Pole, 1

MFG #QA120AFC

31 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$105.79/EA

QTY

U/M

EA BX /10

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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

165 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$69.70/EA

Regular Price: $103.00/EA, you save $33.30 (32%)

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q350

Part #SIEM Q350 50AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, 240 VAC, 50 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection, 8 to 6 AWG, 8 to 4 AWG Wire, NEMA 1/3R

MFG #Q350

18 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$175.47/EA

Regular Price: $207.00/EA, you save $31.53 (15%)

QTY

U/M

EA BX /4CA /16CS /16

ADD TO CARTADD TO LIST

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SIEM Q290

Part #SIEM Q290 90AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 90 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connection,

MFG #Q290

25 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$119.70/EA

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q245

Part #SIEM Q245 BREAKER 45A 2P 120/240V 10K QP Siemens Molded Case Circuit Breaker, Type QP/MP, 120/240 VAC, 45 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Plug-In Connection, 8 to 6 AWG, 8 to 4 AWG Wire, NEMA 1/3R Enclosur

MFG #Q245

11 in Stock. More available 05/11/2026

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$32.84/EA

QTY

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SIEM Q23030CT2

Part #SIEM Q23030CT2 30AMP 2POLE 120/240VAC (2)30AMP 2POLE COMMON TRIP PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Low Voltage Miniature Quadplex, Series: Quadplex, 120/240 VAC, 30 A, 10 kA Interrupt, QT Frame, Thermal/Magnetic Tri

MFG #Q23030CT2

10 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$110.59/EA

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q270

Part #SIEM Q270 70AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 70 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connection,

MFG #Q270

19 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$82.86/EA

QTY

U/M

EA BX /6

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SIEM Q340

Part #SIEM Q340 40AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Low Voltage Miniature Residential, 240 VAC, 40 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection, 8 t

MFG #Q340

6 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$175.47/EA

Regular Price: $207.00/EA, you save $31.53 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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SIEM QF250A

Part #SIEM QF250A 50AMP 2POLE 120/240VAC GFCI PLUG-IN CIRCUIT BREAKER Siemens Ground Fault Circuit Breaker, Type QPF, 120/240 VAC, 50 A, 10 kA Interrupt, QPF Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Connection, 12.7 in L x 6.8 in W x 7.9 in H Dimensio

MFG #QF250A

26 in Stock. More available 05/02/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$250.45/EA

Regular Price: $469.00/EA, you save $218.55 (47%)

QTY

U/M

EA BX /10

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SIEM Q235

Part #SIEM Q235 35AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP, 120/240 VAC, 35 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connection, 14 to 6 AWG Wire, NEMA

MFG #Q235

36 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$32.84/EA

QTY

U/M

EA BX /6

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SIEM Q120

Part #SIEM Q120 20AMP 1POLE 120VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 20 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Plug-In Mounting, 40 deg C, 3.6 in W x 12.8 in D x 3.5 in H Dimensions

MFG #Q120

2211 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$13.49/EA

Regular Price: $15.90/EA, you save $2.42 (15%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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SIEM Q230

Part #SIEM Q230 30AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 30 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 3 in W x 3 in D x 2 in H Dimensions

MFG #Q230

587 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$29.56/EA

Regular Price: $32.70/EA, you save $3.14 (10%)

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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SIEM Q260

Part #SIEM Q260 60AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens, Q260, Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 60 A, 60 Hz Frequency, 10 kA Interrupt, 2 in Frame, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/P

MFG #Q260

340 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$30.16/EA

Regular Price: $32.70/EA, you save $2.54 (8%)

QTY

U/M

EA BX /6

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SIEM Q120DF

Part #SIEM Q120DF 20AMP 1POLE 120VAC AFCI/GFCI PLUG-IN CIRCUIT BREAKER 10kAIC Siemens Combination AFCI/GFCI Circuit Breaker, Type QFGA2 Dual Function, 120 VAC, 20 A, 10 kA Interrupt, LI/Thermal Magnetic Trip, 5 mA Trip, 1 Pole, 1, 14 to 8 AWG, 12 to 8 AWG

MFG #Q120DF

57 in Stock. More available 04/27/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$134.25/EA

QTY

U/M

EA BX /10

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SIEM Q240

Part #SIEM Q240 40AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120/240 VAC, 40 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 3 in W x 3 in D x 2 in H Dimensions

MFG #Q240

300 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$30.16/EA

Regular Price: $32.70/EA, you save $2.54 (8%)

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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SIEM Q22020CT2

Part #SIEM Q22020CT2 20AMP 2POLE 120/240VAC (2)2OAMP 2POLE COMMON TRIP PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Low Voltage Miniature Quadplex, Series: Quadplex, 120/240 VAC, 20 A, 10 kA Interrupt, QT Frame, Thermal/Magnetic Tri

MFG #Q22020CT2

9 in Stock. More available 05/09/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$110.59/EA

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q115DF

Part #SIEM Q115DF 15AMP 1POLE 120VAC AFCI/GFCI PLUG-IN CIRCUIT BREAKER 10kAIC Siemens Combination AFCI/GFCI Circuit Breaker, Type QFGA2, 120 VAC, 15 A, 10 kA Interrupt, Thermal/Magnetic Trip, 1 Pole, 1 ph, Plug-In Connection, 1 in L x 3 in W x 4-1/2 in H D

MFG #Q115DF

43 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$137.23/EA

QTY

U/M

EA BX /10

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SIEM Q115

Part #SIEM Q115 15AMP 1POLE 120VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, 120 VAC, 15 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Plug-In Connection, 14 to 12 AWG, 12 to 10 AWG Wire, NEMA

MFG #Q115

1258 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$13.49/EA

Regular Price: $15.90/EA, you save $2.42 (15%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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SIEM QSA2020SPD

Part #SIEM QSA2020SPD 20AMP (2)20AMP 1POLE 120/240VAC PLUG-IN CIRCUIT BREAKERS W/SURGE PROTECTIVE DEVICE (ALL BRANCH CIRCUITS) Siemens Surge Protection Circuit Breaker, Molded Case, 120/240 VAC, 15 A, 10 kA Interrupt, Thermal/Magnetic Trip, 1 Pole, Plug-In

MFG #QSA2020SPD

24 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$357.11/EA

Regular Price: $822.00/EA, you save $464.89 (57%)

QTY

U/M

EA BX /28

ADD TO CARTADD TO LIST

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SIEM Q220

Part #SIEM Q220 20AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 20 A, 10 kA Interrupt, QP Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 2 in W x 3 in D x 3 in H Dimensions

MFG #Q220

854 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$29.56/EA

Regular Price: $32.70/EA, you save $3.14 (10%)

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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SIEM QF120A

Part #SIEM QF120A 20AMP 1POLE 120VAC GFCI PLUG-IN CIRCUIT BREAKER WITH PIGTAIL Siemens Ground Fault Circuit Breaker With Self Test, Type GFCI Class A, 120 VAC, 20 A, 10 kA Interrupt, QPF2 Frame, Thermal Magnetic Trip, 5 mA Trip, 1 Pole, Plug-In/Line and Lo

MFG #QF120A

65 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$112.38/EA

Regular Price: $236.00/EA, you save $123.62 (52%)

QTY

U/M

EA BX /12

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SIEM Q320

Part #SIEM Q320 20AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Low Voltage Miniature Residential, 240 VAC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection, 14

MFG #Q320

27 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$175.47/EA

Regular Price: $207.00/EA, you save $31.53 (15%)

QTY

U/M

EA BX /4CA /16CS /16

ADD TO CARTADD TO LIST

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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

192 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$36.50/EA

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q3100

Part #SIEM Q3100 100AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Low Voltage Miniature Residential, 240 VAC, 100 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection,

MFG #Q3100

19 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$261.93/EA

Regular Price: $309.00/EA, you save $47.07 (15%)

QTY

U/M

EA BX /4CA /16CS /16

ADD TO CARTADD TO LIST

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SIEM QA120AFC

Part #SIEM QA120AFC 20AMP 1POLE 120VAC AFCI PLUG-IN CIRCUIT BREAKER Siemens SpeedFaxâ„¢, QA120AFCCSA, Arc-Fault Circuit Breaker, Low Voltage, 120 VAC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QAF2 Frame, LI/Thermal Magnetic Trip, 1 Pole, 1

MFG #QA120AFC

31 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$105.79/EA

QTY

U/M

EA BX /10

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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

165 in Stock. More available 04/23/2026 and 05/11/2026

VIEW BRANCH INVENTORY

$69.70/EA

Regular Price: $103.00/EA, you save $33.30 (32%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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SIEM Q350

Part #SIEM Q350 50AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, 240 VAC, 50 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection, 8 to 6 AWG, 8 to 4 AWG Wire, NEMA 1/3R

MFG #Q350

18 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$175.47/EA

Regular Price: $207.00/EA, you save $31.53 (15%)

QTY

U/M

EA BX /4CA /16CS /16

ADD TO CARTADD TO LIST

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SIEM Q290

Part #SIEM Q290 90AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 90 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connection,

MFG #Q290

25 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$119.70/EA

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q245

Part #SIEM Q245 BREAKER 45A 2P 120/240V 10K QP Siemens Molded Case Circuit Breaker, Type QP/MP, 120/240 VAC, 45 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Plug-In Connection, 8 to 6 AWG, 8 to 4 AWG Wire, NEMA 1/3R Enclosur

MFG #Q245

11 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$32.84/EA

QTY

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SIEM Q23030CT2

Part #SIEM Q23030CT2 30AMP 2POLE 120/240VAC (2)30AMP 2POLE COMMON TRIP PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QT Low Voltage Miniature Quadplex, Series: Quadplex, 120/240 VAC, 30 A, 10 kA Interrupt, QT Frame, Thermal/Magnetic Tri

MFG #Q23030CT2

10 in Stock. More available 05/11/2026

VIEW BRANCH INVENTORY

$110.59/EA

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q270

Part #SIEM Q270 70AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 70 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connection,

MFG #Q270

19 in Stock. More available 04/23/2026 and 05/11/2026

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$82.86/EA

QTY

U/M

EA BX /6

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SIEM Q340

Part #SIEM Q340 40AMP 3POLE 240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Low Voltage Miniature Residential, 240 VAC, 40 A, 50/60 Hz Frequency, 10 kA Interrupt, QP/MP Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Plug-In Connection, 8 t

MFG #Q340

6 in Stock. More available 04/23/2026 and 05/11/2026

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$175.47/EA

Regular Price: $207.00/EA, you save $31.53 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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SIEM QF250A

Part #SIEM QF250A 50AMP 2POLE 120/240VAC GFCI PLUG-IN CIRCUIT BREAKER Siemens Ground Fault Circuit Breaker, Type QPF, 120/240 VAC, 50 A, 10 kA Interrupt, QPF Frame, Thermal/Magnetic Trip, 2 Pole, Plug-In Connection, 12.7 in L x 6.8 in W x 7.9 in H Dimensio

MFG #QF250A

26 in Stock. More available 05/02/2026 and 05/11/2026

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$250.45/EA

Regular Price: $469.00/EA, you save $218.55 (47%)

QTY

U/M

EA BX /10

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SIEM Q235

Part #SIEM Q235 35AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP, 120/240 VAC, 35 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connection, 14 to 6 AWG Wire, NEMA

MFG #Q235

36 in Stock. More available 05/11/2026

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$32.84/EA

QTY

U/M

EA BX /6

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