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 1729 - 1776 of 2376 Items
Filters Clear Filters
expand_less Brand (3)
+ Show 11 More
expand_less Ways to Shop
expand_less Circuit Breaker Type
expand_less Amperage Rating
expand_less Voltage Rating (AC)
expand_less Number of Poles
expand_less Interrupt Rating
+ Show 9 More
expand_less Trip Type
  • Midwest
  • Milbank
  • Square D
Square D
Mini circuit breaker, QOU, 40A, 2 pole, 120/240 VAC, 10kA, shunt trip
MFR: Schneider Electric
MFR #: QOU2401042
UPC: 785901586043
Item #: 216174
Available to Order
$375.50 each
Availability
Location Available Qty
Square D
Mini circuit breaker, E-Frame, 30A, 2 pole, 480Y/277VAC, 100kA max, bolt on
MFR: Schneider Electric
MFR #: EJB24030
UPC: 785901128762
Item #: 122293
Available to Order
$1099.70 each
Availability
Location Available Qty
Square D
Mini circuit breaker, E-Frame, 80A, 2 pole, 480Y/277 VAC, 65 kA max, bolt on
MFR: Schneider Electric
MFR #: EGB24080
UPC: 785901130468
Item #: 537339
Available to Order
$1280.21 each
Availability
Location Available Qty
Square D
Mini circuit breaker, E-Frame, 90A, 2 pole, 480Y/277 VAC, 65 kA max, bolt on
MFR: Schneider Electric
MFR #: EGB24090
UPC: 785901325000
Item #: 1297345
Available to Order
$1920.32 each
Availability
Location Available Qty
SQUARE D
QO240HID Miniature Circuit Breaker, 40 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO240HID
UPC: 785901543800
Item #: 659018
Available to Order
$94.84 each
Availability
Location Available Qty
Square D
Tandem mini circuit breaker, QO, 1 x 1 pole at 15A, 1 x 1 pole at 20A, 120/240VAC, 10kA, plug in
MFR: Schneider Electric
MFR #: QO2015
UPC: 785901409649
Item #: 171272
Available to Order
$85.72 each
Availability
Location Available Qty
Square D
EDB14020SA Miniature Circuit Breaker, 20 Amp, 1 Pole, 277V
MFR: Schneider Electric
MFR #: EDB14020SA
UPC: 785901335115
Item #: 44154
Available to Order
$946.28 each
Availability
Location Available Qty
Square D
EGB14040 Miniature Circuit Breaker, 40 Amp, 1 Pole, 277V
MFR: Schneider Electric
MFR #: EGB14040
UPC: 785901311102
Item #: 126131
Available to Order
$255.05 each
Availability
Location Available Qty
Square D
QO220HID Miniature Circuit Breaker, 20 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO220HID
UPC: 785901543787
Item #: 123735
Available to Order
$94.84 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, QO, 20A, 2 pole, 120/240VAC, 10kA, bolt on, combo ARC fault, pigtail
MFR: Schneider Electric
MFR #: QOB220CAFI
UPC: 785901809371
Item #: 504328
Available to Order
$766.50 each
Availability
Location Available Qty
Square D
QO130VHGFI Miniature Circuit Breaker, 30 Amp, 1 Pole, 120V
MFR: Schneider Electric
MFR #: QO130VHGFI
UPC: 785901335290
Item #: 270490
Available to Order
$571.23 each
Availability
Location Available Qty
Square D
Circuit breaker enclosure, QO, 1 phase, 2 spaces, 60A, NEMA3R, UL
MFR: Schneider Electric
MFR #: QO2TR
UPC: 785901805557
Item #: 2311
Available to Order
$136.47 each
Availability
Location Available Qty
Square D
Mini circuit breaker, E-Frame, 110A, 2 pole, 480Y/277 VAC, 25 kA max, bolt on
MFR: Schneider Electric
MFR #: EDB24110
UPC: 785901129738
Item #: 171825
Available to Order
$2034.74 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, QO, 35A, 3 pole, 120/240VAC, 10kA, bolt on, AC shunt
MFR: Schneider Electric
MFR #: QOB3351021
UPC: 785901115533
Item #: 125165
Available to Order
$565.50 each
Availability
Location Available Qty
SQUARE D
QO220SWN1021 Miniature Circuit Breaker, 20 Amp, 2 Pole, 120V
MFR: Schneider Electric
MFR #: QO220SWN1021
UPC: 785901088257
Item #: 149236
Available to Order
$309.60 each
Availability
Location Available Qty
Square D
Mini circuit breaker, E-Frame, 15A, 3 pole, 600Y/347 VAC, 25 kA max, bolt on
MFR: Schneider Electric
MFR #: EDB36015
UPC: 785901233930
Item #: 206656
Available to Order
$699.50 each
Availability
Location Available Qty
Square D
QO390VH Miniature Circuit Breaker, 90 Amp, 3 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO390VH
UPC: 785901120612
Item #: 304779
Available to Order
$699.66 each
Availability
Location Available Qty
Square D
QOU220H Miniature Circuit Breaker, 20 Amp, 2 Pole, 240V
MFR: Schneider Electric
MFR #: QOU220H
UPC: 785901090328
Item #: 1106933
Available to Order
$228.57 each
Availability
Location Available Qty
SQUARE D
Circuit breaker accessory, PowerPacT M/P/R, external neutral sensor, for SGR and MDGF applications
MFR: Schneider Electric
MFR #: S33579
UPC: 785901707615
Item #: 656026
Available to Order
$701.84 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 70A, 1 pole, 120/240 VAC, 10kA
MFR: Schneider Electric
MFR #: QOU170
UPC: 785901509868
Item #: 206538
Available to Order
$114.60 each
Availability
Location Available Qty
Square D
QO115PL Miniature Circuit Breaker, 15 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO115PL
UPC: 785901095699
Item #: 839024
Available to Order
$158.59 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 35A, 1 pole, 120/240 VAC, 10kA
MFR: Schneider Electric
MFR #: QOU135
UPC: 785901489092
Item #: 168986
Available to Order
$54.69 each
Availability
Location Available Qty
SQUARE D
QO215HID Miniature Circuit Breaker, 15 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO215HID
UPC: 785901543770
Item #: 69542
Available to Order
$94.84 each
Availability
Location Available Qty
Square D
QO2801021 Miniature Circuit Breaker, 80 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO2801021
UPC: 785901030546
Item #: 118903
Available to Order
$540.42 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 35A, 3 pole, 240 VAC, 10kA, bulk pack
MFR: Schneider Electric
MFR #: QOU330B
UPC: 785901121169
Item #: 1207705
Available to Order
$412.88 each
Availability
Location Available Qty
SQUARE D
QOB260GFI Miniature Circuit Breaker, 60 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB260GFI
UPC: 785901363002
Item #: 15451
Available to Order
$520.92 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 25A, 1 pole, 120/240VAC, 10kA, bulk pack
MFR: Schneider Electric
MFR #: QOU125B
UPC: 785901324263
Item #: 839040
Available to Order
$51.42 each
Availability
Location Available Qty
SQUARE D
QOB230EPD2100 Miniature Circuit Breaker, 30 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB230EPD2100
UPC: 785901088738
Item #: 1243289
Available to Order
$970.62 each
Availability
Location Available Qty
Square D
QO200 Miniature Circuit Breaker, 60 Amp, 2 Pole, 240V
MFR: Schneider Electric
MFR #: QO200
UPC: 785901371700
Item #: 133569
Available to Order
$76.31 each
Availability
Location Available Qty
Square D
Mini circuit breaker, E-Frame, 80A, 2 pole, 480Y/277VAC, 25kA max, bolt on
MFR: Schneider Electric
MFR #: EDB24080
UPC: 785901311058
Item #: 52432
In Stock -
$790.47 each
Availability
Location Available Qty
SQUARE D
QO225EPD Miniature Circuit Breaker, 25 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO225EPD
UPC: 785901373278
Item #: 640351
Available to Order
$860.52 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, QO, 45A, 1 pole, 120/240VAC, 10kA, bolt on
MFR: Schneider Electric
MFR #: QOB145
UPC: 785901509929
Item #: 2862
Available to Order
$46.70 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 20A, 2 pole, 120/240VAC, 10kA, bulk pack
MFR: Schneider Electric
MFR #: QOU220B
UPC: 785901120995
Item #: 857229
Available to Order
$119.51 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 50A, 2 pole, 120/240 VAC, 10kA, field reversible lugs
MFR: Schneider Electric
MFR #: QOUR250
UPC: 785901079354
Item #: 104400
Available to Order
$141.50 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, QO, 40A, 1 pole, 120/240VAC, 10kA, bolt on, AC shunt
MFR: Schneider Electric
MFR #: QOB1401021
UPC: 785901494225
Item #: 690874
Available to Order
$268.67 each
Availability
Location Available Qty
Square D
EDB14060 Miniature Circuit Breaker, 60 Amp, 1 Pole, 277V
MFR: Schneider Electric
MFR #: EDB14060
UPC: 785901326434
Item #: 156928
Available to Order
$156.84 each
Availability
Location Available Qty
SQUARE D
QOB2110 Miniature Circuit Breaker, 110 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB2110
UPC: 785901120636
Item #: 104191
Available to Order
$634.83 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 30A, 2 pole, 120/240 VAC, 10kA, ring terminal
MFR: Schneider Electric
MFR #: QOU2305283
UPC: 785901285113
Item #: 1195004
Available to Order
$182.31 each
Availability
Location Available Qty
SQUARE D
QOB120VHAFI Miniature Circuit Breaker, 20 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB120VHAFI
UPC: 785901233374
Item #: 833839
Available to Order
$567.41 each
Availability
Location Available Qty
SQUARE D
QOB120AFI Miniature Circuit Breaker, 20 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB120AFI
UPC: 785901299356
Item #: 51730
Available to Order
$284.25 each
Availability
Location Available Qty
SQUARE D
QO270VH Miniature Circuit Breaker, 70 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO270VH
UPC: 785901054986
Item #: 84045
Available to Order
$295.71 each
Availability
Location Available Qty
Square D
QO120VHDF Miniature Circuit Breaker, 20 Amp, 1 Pole, 120V
MFR: Schneider Electric
MFR #: QO120VHDF
UPC: 785901157755
Item #: 649673
Available to Order
$629.49 each
Availability
Location Available Qty
Square D
QO260PL Miniature Circuit Breaker, 60 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO260PL
UPC: 785901095804
Item #: 493707
Available to Order
$688.91 each
Availability
Location Available Qty
Square D by Schneider Electric
CIRCUIT BREAKER LUG KIT (SET OF 3)
MFR: Schneider Electric
MFR #: 32508
UPC: 785901123040
Item #: 175875
Available to Order
$146.87 each
Availability
Location Available Qty
Square D
EGB14025 Miniature Circuit Breaker, 25 Amp, 1 Pole, 277V
MFR: Schneider Electric
MFR #: EGB14025
UPC: 785901335177
Item #: 189004
Available to Order
$255.05 each
Availability
Location Available Qty
Square D by Schneider Electric
CB ROTARY OPERATING HANDLE
MFR: Schneider Electric
MFR #: 28050
UPC: 785901310341
Item #: 1120531
Available to Order
$212.61 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 20A, 1 pole, 120/240 VAC, 10kA, shunt trip
MFR: Schneider Electric
MFR #: QOU1201021
UPC: 785901510109
Item #: 455566
Available to Order
$311.55 each
Availability
Location Available Qty
SQUARE D
QOB120PL5393 Miniature Circuit Breaker, 20 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOB120PL5393
UPC: 785901404750
Item #: 335584
Available to Order
$150.97 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.