Circuit Breakers

Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,20 A,10 kAIC,Single-pole,120/240V,BR,#14-4 AWG Cu/Al,Q1,BR,Type BR loadcenters Molded Case Circuit Breakers
Mini circuit breaker, Homeline, 20A, 1 pole, 120/240VAC, 10kA AIR, standard type, plug in, UL Miniature Circuit Breakers
Multi 9 - C60BP - MCB - 1P - 20 A - C Curve - 277 V - 10 kA - UL 489 Low Voltage Circuit Breakers
Branch Circuit Breaker, GFCI 1-Pole 20A 120V, 10Ka Interrupt Rating GFCI Circuit Breakers
Showing 577 - 624 of 8905 Items
Filters
expand_less Brand
+ Show 10 More
expand_less Ways to Shop
expand_less Circuit Breaker Type
+ Show 5 More
expand_less Voltage Rating (AC)
+ Show 9 More
expand_less Amperage Rating
+ Show 40 More
expand_less Mounting
expand_less Number of Poles
expand_less Interrupt Rating
+ Show 26 More
expand_less Trip Type
Square D
QOB3150VH Miniature Circuit Breaker, 150 Amp, 3 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB3150VH
UPC: 785901065517
Item #: 102125
In Stock -
$2292.19 each
Availability
Location Available Qty
Eaton
Eaton Power Defense molded case circuit breaker, Door handle, Standard lockable handle and mechanism, Frame 1
MFR: Eaton
MFR #: PDG1XHMDS
UPC: 786689320928
Item #: 1115293
In Stock -
$102.04 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, E-Frame, 90A, 3 pole, 480Y/277VAC, 25kA max, bolt on [TAA]
MFR: Schneider Electric
MFR #: EDB34090
UPC: 785901875376
Item #: 126574
In Stock -
$952.55 each
Availability
Location Available Qty
Square D
QOB3125VH Miniature Circuit Breaker, 125 Amp, 3 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB3125VH
UPC: 785901065470
Item #: 169865
In Stock -
$2292.19 each
Availability
Location Available Qty
Eaton
Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,20 A,10 kAIC,Three-pole,240V,BR,Common breaker trip,#14-4 AWG Cu/Al,Q28,BR,Type BR Loadcenters
MFR: Eaton
MFR #: BR320
UPC: 786676367752
Item #: 151299
In Stock -
$556.61 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Miniature circuit breaker (MCB), Multi9 C60BP, 3P, 1A, C curve, 10kA (UL489), 10kA (IEC/EN 60947-2)
MFR: Schneider Electric
MFR #: M9F42301
Item #: 845759
In Stock -
$375.06 each
Availability
Location Available Qty
Milbank
MILBANK 200 AMP 2 POLE 240 VOLT PLUG-IN 22K AIC
MFR: Milbank
MFR #: UQFPH-200
UPC: 784572201606
Item #: 89900
In Stock -
$845.88 each
Availability
Location Available Qty
Eaton
Eaton Type BR Main Circuit Breaker,Main circuit breaker,200 A,25 kAIC,Two-pole,120/240 V,BR,#2 AWG-300 kcmil Cu/Al,BWH,MHM200P, MHM200B, MHR200P, MHR200B, MHM200P1N4N4N
MFR: Eaton
MFR #: BWH2200
UPC: 786676460606
Item #: 51263
Available to Order
$1651.93 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT L, 400A, 3 pole, 600VAC, 25kA, I-Line, MicroLogic 3.3, 80%, ABC
MFR: Schneider Electric
MFR #: LJA36400U31X
UPC: 785901648550
Item #: 139718
In Stock -
$7868.75 each
Availability
Location Available Qty
Eaton
BAB2035 Miniature Circuit Breaker, 35 Amp, 2 Pole, 120/240V
MFR: Eaton
MFR #: BAB2035
UPC: 786679302354
Item #: 173819
In Stock -
$284.81 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, E-Frame, 70A, 3 pole, 480Y/277VAC, 25kA max, bolt on [TAA]
MFR: Schneider Electric
MFR #: EDB34070
UPC: 785901875352
Item #: 170962
In Stock -
$952.55 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 200A, 3 pole, 600VAC, 25kA, I-Line, thermal magnetic, 80%, ABC
MFR: Schneider Electric
MFR #: JJA36200
UPC: 785901939245
Item #: 47998
In Stock -
$5980.28 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 250A, 3 pole, 600VAC, 14kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: JDL36250
UPC: 785901839941
Item #: 72623
In Stock -
$4952.21 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT M, 300A to 800A, 3 pole, 600VAC, 18kA, I-Line, adjustable trip, 80%, ABC
MFR: Schneider Electric
MFR #: MGA36800E10
Item #: 1284251
In Stock -
$8955.58 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, QO, 20A, 1 pole, 120/240VAC, 10kA, plug in, AC shunt
MFR: Schneider Electric
MFR #: QO1201021
UPC: 785901493815
Item #: 39308
In Stock -
$258.18 each
Availability
Location Available Qty
Eaton
Eaton Power Defense molded case circuit breaker, Globally Rated, Frame 1, Three Pole, 20A, 25kA/480V, T-M (Fxd-Fxd) TU, Standard Line and Load (PDG1X3T125)
MFR: Eaton
MFR #: PDG13F0020TFFJ
UPC: 786679319031
Item #: 1171623
In Stock -
$441.99 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Miniature circuit breaker (MCB), Multi9 C60SP, 1P, 2A, B curve, 10kA (UL1077), 10kA (IEC/EN 60947-2)
MFR: Schneider Electric
MFR #: M9F21102
Item #: 804747
In Stock -
$104.27 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Circuit breaker, PowerPacT B, 15A, 1 pole, 600Y/347VAC, 14kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: BDL16015
Item #: 644340
In Stock -
$340.39 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Miniature circuit breaker (MCB), Multi9 C60BP, 1P, 8A, D curve, 14kA (UL489), 10kA (IEC/EN 60947-2)
MFR: Schneider Electric
MFR #: M9F43108
Item #: 946267
In Stock -
$110.48 each
Availability
Location Available Qty
Eaton
Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,30 A,10 kAIC,Three-pole,240V,BR,Common breaker trip,#14-4 AWG Cu/Al,Q28,BR,Type BR Loadcenters
MFR: Eaton
MFR #: BR330
UPC: 786676367806
Item #: 151994
In Stock -
$556.61 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Miniature circuit breaker (MCB), Multi9 C60BP, 3P, 10A, C curve, 10kA (UL489), 10kA (IEC/EN 60947-2)
MFR: Schneider Electric
MFR #: M9F42310
Item #: 713648
In Stock -
$345.01 each
Availability
Location Available Qty
Leviton
RC3040M200SL All-in-one, Homeline, CSED, Ringless Socket, 200 Amp, Surface, 30 Spaces, 40 Circuits, 22 kA SCCR, OH, UG, Lever Bypass
MFR: Leviton
MFR #: LSPD1-T
UPC: 078477270288
Item #: 1198364
In Stock -
$244.43 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QO, 35A, 3 pole, 120/240VAC, 10kA, bolt on
MFR: Schneider Electric
MFR #: QOB335
UPC: 785901368335
Item #: 90195
In Stock -
$371.26 each
Availability
Location Available Qty
SQUARE D
QOM2100VH Molded Case Circuit Breaker, 100 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOM2100VH
UPC: 785901021957
Item #: 35521
In Stock -
$549.91 each
Availability
Location Available Qty
SQUARE D
QOM2E2200NRB Molded Case Circuit Breaker, 200 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOM2E2200NRB
UPC: 785901375302
Item #: 121985
In Stock -
$1066.91 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 15A, 1 pole, 120/240VAC, 10kA
MFR: Schneider Electric
MFR #: QOU115
UPC: 785901418504
Item #: 35671
In Stock -
$54.69 each
Availability
Location Available Qty
Eaton
Eaton Series C complete molded case circuit breaker, G-frame, GHB, Complete breaker, Fixed thermal, Fixed magnetic trip type, Three-pole, 100 A, 480Y/277 Vac, 125/250 Vdc, 50/60 Hz
MFR: Eaton
MFR #: GHB3100
UPC: 786679911334
Item #: 1319
In Stock -
$1391.81 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT L, 400A, 3 pole, 600VAC, 18kA, I-Line, Micrologic 3.3, 80%, ABC
MFR: Schneider Electric
MFR #: LGA36400U31X
UPC: 785901644972
Item #: 7690
In Stock -
$4821.89 each
Availability
Location Available Qty
Eaton
Eaton Type CSR Standard Circuit Breaker,Standard circuit breaker,200 A,25 kAIC,Two-pole,120/240 V,CH,#2 - 300 kcmil,CSR,For use in type ECC unit enclosures,Single-phase
MFR: Eaton
MFR #: CSR2200N
UPC: 782113098463
Item #: 30565
In Stock -
$1011.90 each
Availability
Location Available Qty
Siemens
BREAKER 15A 1P 120V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q115
UPC: 783643148185
Item #: 65914
Available to Order
$24.79 each
Availability
Location Available Qty
Eaton
Eaton Type CCV Tenant Main Circuit Breaker,Tenant main circuit breaker,200 A,10 kAIC,Two-pole,120/240 V,#2/0 AWG-300 kcmil Cu/Al,CCV,Type ECC unit enclosures,Load side terminals
MFR: Eaton
MFR #: CCV2200X
UPC: 786685368580
Item #: 135201
In Stock -
$948.73 each
Availability
Location Available Qty
Siemens
BREAKER 20A 1P 120V 10K QP SINGL POLE 20 AMP BREAKER 10 KAIC
MFR: Siemens
MFR #: Q120
UPC: 783643148192
Item #: 66615
Available to Order
$24.79 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Miniature circuit breaker (MCB), Multi9 C60BP, 3P, 5A, C curve, 10kA (UL489), 10kA (IEC/EN 60947-2)
MFR: Schneider Electric
MFR #: M9F42305
Item #: 846304
In Stock -
$375.06 each
Availability
Location Available Qty
SQUARE D
HJL36030M71 Motor Circuit Breaker, 30 Amp, 3 Pole, 600V
MFR: Schneider Electric
MFR #: HJL36030M71
UPC: 785901492948
Item #: 192334
In Stock -
$1124.18 each
Availability
Location Available Qty
Eaton
Eaton CH thermal magnetic circuit breaker,Type CH 3/4-Inch 3/4-Inch standard circuit breaker,40 A,10 kAIC,Three-pole,240V,CH,Common breaker trip,#10-1/0 AWG Cu/Al,CH,Type CH Loadcenters
MFR: Eaton
MFR #: CH340
UPC: 782113102078
Item #: 139942
In Stock -
$420.98 each
Availability
Location Available Qty
Square D
QBA32200 Molded Case Circuit Breaker, 200 Amp, 3 Pole, 240V
MFR: Schneider Electric
MFR #: QBA32200
UPC: 785901702948
Item #: 134502
In Stock -
$1880.04 each
Availability
Location Available Qty
Eaton
Eaton Power Defense molded case circuit breaker, Globally Rated, Frame 2, Three Pole, 150A, 25kA/480V, T-M (Fxd-Fxd) TU, Standard Line and Load (PDG2X3TA225)
MFR: Eaton
MFR #: PDG23F0150TFFJ
UPC: 786679221860
Item #: 1166753
Available to Order
$1074.78 each
Availability
Location Available Qty
SQUARE D
JJA36250U31X Molded Case Circuit Breaker, 250 Amp, 3 Pole, 600V
MFR: Schneider Electric
MFR #: JJA36250U31X
UPC: 785901159117
Item #: 270279
In Stock -
$6162.91 each
Availability
Location Available Qty
Siemens
BREAKER 40A 2P 120/240V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q240
UPC: 783643148635
Item #: 59882
Available to Order
$50.89 each
Availability
Location Available Qty
Siemens
BREAKER 20A 2P 120/240V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q220
UPC: 783643148369
Item #: 57813
Available to Order
$50.89 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 2-Pole, 120/240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. LS-SCHALTER 10KA 1POL C20
MFR: Siemens
MFR #: Q230
UPC: 783643148383
Item #: 59171
Available to Order
$50.89 each
Availability
Location Available Qty
Eaton
Eaton Type CH Style 3/4 in Loadcenter and Breaker Accessories,Circuit breaker unit enclosure,225Amp,10 kAIC,225 V,CH,Determined by circuit breaker installed,CCV,CC Circuit breakers,NEMA 1,Single- and three-phase
MFR: Eaton
MFR #: ECC225F
UPC: 782114225196
Item #: 167218
Available to Order
$584.31 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT B, 125A, 3 pole, 600Y/347VAC, 25kA, I-Line, thermal magnetic, 80%, ABC
MFR: Schneider Electric
MFR #: BJA36125
Item #: 767811
In Stock -
$5439.25 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, E-Frame, 110A, 3 pole, 480Y/277VAC, 25kA max, bolt on [TAA]
MFR: Schneider Electric
MFR #: EDB34110
UPC: 785901311089
Item #: 54896
Available to Order
$2531.41 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QO, 45A, 3 pole, 120/240VAC, 10kA, bolt on
MFR: Schneider Electric
MFR #: QOB345
UPC: 785901368342
Item #: 94713
Available to Order
$371.26 each
Availability
Location Available Qty
Eaton
BAB2045 Miniature Circuit Breaker, 45 Amp, 2 Pole, 120/240V
MFR: Eaton
MFR #: BAB2045
UPC: 786679302446
Item #: 44973
In Stock -
$284.81 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Miniature circuit breaker (MCB), Multi9 C60BPR, 2P, 15A, C curve, 10kA (UL489), 10kA (IEC/EN 60947-2)
MFR: Schneider Electric
MFR #: M9F52215
Item #: 928485
In Stock -
$252.95 each
Availability
Location Available Qty
Eaton
Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,90 A,10 kAIC,Three-pole,240V,BR,Common breaker trip,#4-1/0 AWG Cu/Al,Q28,BR,Type BR Loadcenters
MFR: Eaton
MFR #: BR390
UPC: 786676368056
Item #: 154799
In Stock -
$942.34 each
Availability
Location Available Qty

About Circuit Breakers

Circuit breakers are a critical component of electrical systems, protecting them against overload or short-circuiting. These devices shut off power when levels exceed a safety threshold in order to prevent damage to equipment or personnel. There are a variety of types of circuit breakers to suit different applications, including miniature, molded case, low voltage, GFCI, and AFCI.