"Q" Plug-in Branch Breakers

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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

1640 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$27.84/EA

Regular Price: $30.80/EA, you save $2.96 (10%)

QTY

U/M

EA BX /6CA /24CS /24

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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

772 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$28.41/EA

Regular Price: $30.80/EA, you save $2.39 (8%)

QTY

U/M

EA BX /6CA /24CS /24

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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

3599 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$12.72/EA

Regular Price: $15.00/EA, you save $2.28 (15%)

QTY

U/M

EA BX /12CA /48CS /48

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SIEM Q2100

Part #SIEM Q2100 100AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 100 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connectio

MFG #Q2100

145 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$101.47/EA

QTY

U/M

EA BX /6CA /24CS /24

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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

1386 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$12.72/EA

Regular Price: $15.00/EA, you save $2.28 (15%)

QTY

U/M

EA BX /12CA /48CS /48

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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

900 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$27.84/EA

Regular Price: $30.80/EA, you save $2.96 (10%)

QTY

U/M

EA BX /6CA /24CS /24

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SIEM Q250

Part #SIEM Q250 50AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 50 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 #Q250

432 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$28.41/EA

Regular Price: $30.80/EA, you save $2.39 (8%)

QTY

U/M

EA BX /6

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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 02/23/2026

VIEW BRANCH INVENTORY

$164.87/EA

Regular Price: $194.50/EA, you save $29.63 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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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

238 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$28.41/EA

Regular Price: $30.80/EA, you save $2.39 (8%)

QTY

U/M

EA BX /6

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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

37 in Stock. More available 02/06/2026 and 03/02/2026

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$242.96/EA

Regular Price: $455.00/EA, you save $212.04 (47%)

QTY

U/M

EA BX /10

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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

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

VIEW BRANCH INVENTORY

$129.76/EA

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

43 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$30.93/EA

QTY

U/M

EA BX /6

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SIEM Q225

Part #SIEM Q225 25AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP, 120/240 VAC, 25 A, 10 kA Interrupt, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 3 in W x 3 in D x 2 in H Dimensions

MFG #Q225

165 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$29.62/EA

Regular Price: $30.80/EA, you save $1.18 (4%)

QTY

U/M

EA BX /6

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SIEM Q23030CT2NC

Part #SIEM Q23030CT2NC 30AMP 2POLE 120/240VAC (2)30AMP 2POLE COMMON TRIP PLUG-IN CIRCUIT BREAKER FOR REPLACEMENT USE ONLY IN PANELS MANUFACTURED BEFORE 1968 Siemens Molded Case Circuit Breaker, Low Voltage Miniature Quadplex Residential, 120/240 VAC, 30 A,

MFG #Q23030CT2NC

10 in Stock. More available 03/02/2026

VIEW BRANCH INVENTORY

$119.80/EA

Regular Price: $169.50/EA, you save $49.70 (29%)

QTY

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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 02/23/2026

VIEW BRANCH INVENTORY

$246.67/EA

Regular Price: $291.00/EA, you save $44.34 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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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

30 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$164.87/EA

Regular Price: $194.50/EA, you save $29.63 (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

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

VIEW BRANCH INVENTORY

$102.56/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

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

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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

10 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$110.49/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

17 in Stock. More available 02/23/2026

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$30.93/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 02/23/2026

VIEW BRANCH INVENTORY

$103.94/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

25 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$76.73/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

15 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$164.87/EA

Regular Price: $194.50/EA, you save $29.63 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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SIEM Q2125

Part #SIEM Q2125 125AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 125 A, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Plug-In Connection, 8 to 2/0 AWG Wire, 40 d

MFG #Q2125

27 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$223.44/EA

QTY

U/M

EA BX /6

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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

1640 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$27.84/EA

Regular Price: $30.80/EA, you save $2.96 (10%)

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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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

772 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$28.41/EA

Regular Price: $30.80/EA, you save $2.39 (8%)

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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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

3599 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$12.72/EA

Regular Price: $15.00/EA, you save $2.28 (15%)

QTY

U/M

EA BX /12CA /48CS /48

ADD TO CARTADD TO LIST

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SIEM Q2100

Part #SIEM Q2100 100AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 100 A, 60 Hz Frequency, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Load Lug/Plug-In Connectio

MFG #Q2100

145 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$101.47/EA

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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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

1386 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$12.72/EA

Regular Price: $15.00/EA, you save $2.28 (15%)

QTY

U/M

EA BX /12CA /48CS /48

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

900 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$27.84/EA

Regular Price: $30.80/EA, you save $2.96 (10%)

QTY

U/M

EA BX /6CA /24CS /24

ADD TO CARTADD TO LIST

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SIEM Q250

Part #SIEM Q250 50AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type Q, 120 VAC, 50 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 #Q250

432 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$28.41/EA

Regular Price: $30.80/EA, you save $2.39 (8%)

QTY

U/M

EA BX /6

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 02/23/2026

VIEW BRANCH INVENTORY

$164.87/EA

Regular Price: $194.50/EA, you save $29.63 (15%)

QTY

U/M

EA BX /4CA /16CS /16

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

238 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$28.41/EA

Regular Price: $30.80/EA, you save $2.39 (8%)

QTY

U/M

EA BX /6

ADD TO CARTADD TO LIST

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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

37 in Stock. More available 02/06/2026 and 03/02/2026

VIEW BRANCH INVENTORY

$242.96/EA

Regular Price: $455.00/EA, you save $212.04 (47%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

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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

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

VIEW BRANCH INVENTORY

$129.76/EA

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

43 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$30.93/EA

QTY

U/M

EA BX /6

ADD TO CARTADD TO LIST

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SIEM Q225

Part #SIEM Q225 25AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP, 120/240 VAC, 25 A, 10 kA Interrupt, Thermal/Magnetic Trip, 2 Pole, Plug-In Mounting, 3 in W x 3 in D x 2 in H Dimensions

MFG #Q225

165 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$29.62/EA

Regular Price: $30.80/EA, you save $1.18 (4%)

QTY

U/M

EA BX /6

ADD TO CARTADD TO LIST

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SIEM Q23030CT2NC

Part #SIEM Q23030CT2NC 30AMP 2POLE 120/240VAC (2)30AMP 2POLE COMMON TRIP PLUG-IN CIRCUIT BREAKER FOR REPLACEMENT USE ONLY IN PANELS MANUFACTURED BEFORE 1968 Siemens Molded Case Circuit Breaker, Low Voltage Miniature Quadplex Residential, 120/240 VAC, 30 A,

MFG #Q23030CT2NC

10 in Stock. More available 03/02/2026

VIEW BRANCH INVENTORY

$119.80/EA

Regular Price: $169.50/EA, you save $49.70 (29%)

QTY

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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 02/23/2026

VIEW BRANCH INVENTORY

$246.67/EA

Regular Price: $291.00/EA, you save $44.34 (15%)

QTY

U/M

EA BX /4CA /16CS /16

ADD TO CARTADD TO LIST

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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

30 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$164.87/EA

Regular Price: $194.50/EA, you save $29.63 (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

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

VIEW BRANCH INVENTORY

$102.56/EA

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

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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

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

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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

10 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$110.49/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

17 in Stock. More available 02/23/2026

VIEW BRANCH INVENTORY

$30.93/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 02/23/2026

VIEW BRANCH INVENTORY

$103.94/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

25 in Stock. More available 02/23/2026

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$76.73/EA

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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

15 in Stock. More available 02/23/2026

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$164.87/EA

Regular Price: $194.50/EA, you save $29.63 (15%)

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U/M

EA BX /4CA /16CS /16

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SIEM Q2125

Part #SIEM Q2125 125AMP 2POLE 120/240VAC PLUG-IN CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type QP/MP Low Voltage Miniature, 120/240 VAC, 125 A, 10 kA Interrupt, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Plug-In Connection, 8 to 2/0 AWG Wire, 40 d

MFG #Q2125

27 in Stock. More available 02/23/2026

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$223.44/EA

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U/M

EA BX /6

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