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 4369 - 4416 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
Eaton
UL 489 WMZT DIN Rail Miniature Circuit Breaker, 10 kAIC at 480/277V, Two-pole, D Curve, 4A, Standard box terminals
MFR: Eaton
MFR #: WMZT2D04
UPC: 786685256962
Item #: 28075
Available to Order
$192.57 each
Availability
Location Available Qty
Eaton
Eaton Series C complete molded case circuit breaker, K-frame, KDB, Fixed thermal and magnetic trips, Three-pole, 400A, 600 Vac, 250 Vdc, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 12-24 Vac/dc same side left term.
MFR: Eaton
MFR #: KDB3400WS44X38Y02
UPC: 782116485178
Item #: 182760
Available to Order
$9561.44 each
Availability
Location Available Qty
Eaton
UL 489 WMZT DIN Rail Miniature Circuit Breaker, 10 kAIC at 480/277V, Single-pole, C Curve, 7A, Standard box terminals
MFR: Eaton
MFR #: WMZT1C07
UPC: 786685256047
Item #: 169913
Available to Order
$79.66 each
Availability
Location Available Qty
Eaton
UL 489 WMZT DIN Rail Miniature Circuit Breaker, 10 kAIC at 480/277V, Three-pole, C Curve, 40A, Standard box terminals
MFR: Eaton
MFR #: WMZT3C40
UPC: 786685257662
Item #: 31827
Available to Order
$285.90 each
Availability
Location Available Qty
Eaton
UL 489 WMZT DIN Rail Miniature Circuit Breaker, 10 kAIC at 480/277V, Single-pole, C Curve, 40A, Standard box terminals
MFR: Eaton
MFR #: WMZT1C40
UPC: 786685256146
Item #: 75253
Available to Order
$94.34 each
Availability
Location Available Qty
Eaton
UL 489 WMZT DIN Rail Miniature Circuit Breaker, 10 kAIC at 480/277V, Single-pole, D Curve, 8A, Standard box terminals
MFR: Eaton
MFR #: WMZT1D08
UPC: 786685256245
Item #: 139406
Available to Order
$86.65 each
Availability
Location Available Qty
Square D
PJL36080M68 Motor Circuit Breaker, 800 Amp, 3 Pole, 600V
MFR: Schneider Electric
MFR #: PJL36080M68
UPC: 785901657996
Item #: 75620
Available to Order
$8887.45 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT L, 250A, 3 pole, 600VAC, 18kA, lugs, MicroLogic 3.3S, 80%
MFR: Schneider Electric
MFR #: LGL36250U33X
UPC: 785901494706
Item #: 91115
Available to Order
$6241.40 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 200A, 3 pole, 600VAC, 14kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: JDP36200
UPC: 785901947134
Item #: 36701
Available to Order
$3606.18 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, E-Frame, 15A, 1 pole, 277VAC, 25kA max, bolt on, 30mA ground fault protection [TAA]
MFR: Schneider Electric
MFR #: EDB14015EPD
UPC: 785901932758
Item #: 104173
Available to Order
$1486.51 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 225A, 3 pole, 600VAC, 14kA, lugs, thermal magnetic, 80%, shunt
MFR: Schneider Electric
MFR #: JDL36225SA
UPC: 785901685883
Item #: 206986
Available to Order
$4553.29 each
Availability
Location Available Qty
Square D
Circuit breaker, PowerPacT R, 1600A, 3 pole, 600VAC, 18kA, busbar, ET 1.0I, 80%
MFR: Schneider Electric
MFR #: RGF36160
UPC: 785901238430
Item #: 199782
Available to Order
$23095.94 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 250A, 3 pole, 600VAC, 18kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: JGP36250
UPC: 785901583370
Item #: 37307
Available to Order
$5369.04 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 200A, 3 pole, 600VAC, 18kA, I-Line, thermal magnetic, 80%, ABC, shunt
MFR: Schneider Electric
MFR #: JGA36200SA
UPC: 785901947165
Item #: 206440
Available to Order
$4911.06 each
Availability
Location Available Qty
Square D
Circuit breaker, PowerPacT P, 1200A, 3 pole, 600VAC, 25kA, I-Line, Micrologic 5.0A, 80%
MFR: Schneider Electric
MFR #: PLA34120U43A
UPC: 785901468998
Item #: 233197
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Square D
Circuit breaker, PowerPacT J, 225A, 3 pole, 600VAC, 25kA, lugs, thermal magnetic, 80%, aux
MFR: Schneider Electric
MFR #: JJL36225AA
UPC: 785901854296
Item #: 194223
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 60A, 3 pole, 600VAC, 14kA, lugs, thermal magnetic, 80%, shunt
MFR: Schneider Electric
MFR #: HDL36060SA
UPC: 785901590972
Item #: 174680
Available to Order
$2384.31 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 175A, 3 pole, 600VAC, 18kA, lugs, thermal magnetic, 80%, shunt
MFR: Schneider Electric
MFR #: JGL36175SA
UPC: 785901947196
Item #: 77806
Available to Order
$4826.86 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 250A, 3 pole, 600VAC, 25kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: JJP36250
UPC: 785901660972
Item #: 99134
Available to Order
$7770.66 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 100A, 3 pole, 600VAC, 18kA, lugs, thermal magnetic, 100%
MFR: Schneider Electric
MFR #: HGL36100C
UPC: 785901597988
Item #: 206625
Available to Order
$2192.27 each
Availability
Location Available Qty
SQUARE D
Automatic switch, PowerPacT J, 250A, 3 pole, 600VAC, 18kA, lugs, magnetic
MFR: Schneider Electric
MFR #: JGP36000S25
UPC: 785901439363
Item #: 198988
Available to Order
$3681.34 each
Availability
Location Available Qty
SQUARE D
QO120VHCAFI Miniature Circuit Breaker, 20 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO120VHCAFI
UPC: 785901709831
Item #: 119490
Available to Order
$581.57 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT L, 400A, 3 pole, 600VAC, 14kA, lugs, MicroLogic 3.3, 100%
MFR: Schneider Electric
MFR #: LDL36400CU31X
UPC: 785901626664
Item #: 123567
Available to Order
$6212.80 each
Availability
Location Available Qty
SQUARE D
Circuit breaker accessory, PowerPacT P, neutral current transformer, 400A to 1600A sensor
MFR: Schneider Electric
MFR #: S33576
UPC: 785901942764
Item #: 63225
Available to Order
$2356.70 each
Availability
Location Available Qty
SCHNEIDER ELECTRIC
Circuit breaker, PowerPacT B, 60A, 2 pole, 600Y/347VAC, 18kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: BGL26060
Item #: 1204209
Available to Order
$1441.00 each
Availability
Location Available Qty
Square D
Circuit breaker, PowerPacT P, 800A, 3 pole, 480VAC, 100kA, lugs, Micrologic 3.0, 100%
MFR: Schneider Electric
MFR #: PLL34080CU31A
UPC: 785901631163
Item #: 94685
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 200A, 3 pole, 600VAC, 14kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: JDM36200
UPC: 785901946854
Item #: 226319
Available to Order
$3606.18 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, QO, 10A, 1 pole, 120/240VAC, 10kA, plug in, AC shunt
MFR: Schneider Electric
MFR #: QO1101021
UPC: 785901940791
Item #: 83669
Available to Order
$258.18 each
Availability
Location Available Qty
SQUARE D
QDP22080TM Molded Case Circuit Breaker, 80 Amp, 2 Pole, 240V
MFR: Schneider Electric
MFR #: QDP22080TM
UPC: 785901686460
Item #: 64720
Available to Order
$1173.27 each
Availability
Location Available Qty
SQUARE D
MJL36350 Molded Case Circuit Breaker, 350 Amp, 3 Pole, 600V
MFR: Schneider Electric
MFR #: MJL36350
UPC: 785901879947
Item #: 89652
Available to Order
$8800.00 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 225A, 3 pole, 600VAC, 18kA, lugs, thermal magnetic, 80%, shunt
MFR: Schneider Electric
MFR #: JGL36225SA
UPC: 785901668169
Item #: 154528
Available to Order
$4826.86 each
Availability
Location Available Qty
Square D
MJL36450 Molded Case Circuit Breaker, 450 Amp, 3 Pole, 600V
MFR: Schneider Electric
MFR #: MJL36450
UPC: 785901879954
Item #: 111215
Available to Order
$8800.00 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, LH, 200A, 3 pole, 600VAC, 22kA, 250VDC, 50kA, I-Line, thermal magnetic
MFR: Schneider Electric
MFR #: LH36200
UPC: 785901790280
Item #: 164465
Available to Order
$8408.20 each
Availability
Location Available Qty
Square D
QOU120VH Miniature Circuit Breaker, 20 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOU120VH
UPC: 785901559528
Item #: 136014
Available to Order
$137.42 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT J, 200A, 3 pole, 600VAC, 14kA, lugs, thermal magnetic, 80%, shunt
MFR: Schneider Electric
MFR #: JDL36200SA
UPC: 785901526377
Item #: 183595
Available to Order
$4553.29 each
Availability
Location Available Qty
Square D
QOU320VH Miniature Circuit Breaker, 20 Amp, 3 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOU320VH
UPC: 785901560012
Item #: 205421
Available to Order
$625.95 each
Availability
Location Available Qty
Square D
QOU230VH Miniature Circuit Breaker, 30 Amp, 2 Pole, 120/240V
MFR: Schneider Electric
MFR #: QOU230VH
UPC: 785901559894
Item #: 200198
Available to Order
$277.70 each
Availability
Location Available Qty
SQUARE D
Mini circuit breaker, E-Frame, 40A, 2 pole, 480Y/277VAC, 25kA max, bolt on, shunt trip [TAA]
MFR: Schneider Electric
MFR #: EDB24040SA
UPC: 785901545804
Item #: 19067
Available to Order
$1349.88 each
Availability
Location Available Qty
Square D
MJA36450 Molded Case Circuit Breaker, 450 Amp, 3 Pole, 600V
MFR: Schneider Electric
MFR #: MJA36450
UPC: 785901689614
Item #: 201712
Available to Order
$8382.34 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 20A, 3 pole, 600VAC, 50kA, I-Line, thermal magnetic, 80%, ABC
MFR: Schneider Electric
MFR #: HLA36020
UPC: 785901507284
Item #: 2226
Available to Order
$3089.71 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 100A, 3 pole, 600VAC, 50kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: HLL36100
UPC: 785901683209
Item #: 186590
Available to Order
$3250.75 each
Availability
Location Available Qty
SQUARE D
QO115VHCAFI Miniature Circuit Breaker, 15 Amp, 1 Pole, 120/240V
MFR: Schneider Electric
MFR #: QO115VHCAFI
UPC: 785901523192
Item #: 127053
Available to Order
$581.57 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 50A, 3 pole, 600VAC, 50kA, I-Line, thermal magnetic, 80%, ABC
MFR: Schneider Electric
MFR #: HLA36050
UPC: 785901700579
Item #: 30487
Available to Order
$3089.71 each
Availability
Location Available Qty
SQUARE D
QGP32225TM Molded Case Circuit Breaker, 225 Amp, 3 Pole, 240V
MFR: Schneider Electric
MFR #: QGP32225TM
UPC: 785901871880
Item #: 127759
Available to Order
$2506.68 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 40A, 2 pole, 600VAC, 18kA, I-Line, thermal magnetic, 80%, AC
MFR: Schneider Electric
MFR #: HGA260402
UPC: 785901539612
Item #: 232036
Available to Order
$2103.84 each
Availability
Location Available Qty
Square D
Mini circuit breaker, QOU, 30A, 3 pole, 240VAC, 10kA, ring terminal
MFR: Schneider Electric
MFR #: QOU3305283
UPC: 785901433972
Item #: 124384
Available to Order
$497.94 each
Availability
Location Available Qty
SQUARE D
Circuit breaker, PowerPacT H, 70A, 3 pole, 600VAC, 25kA, lugs, thermal magnetic, 80%, aux switch
MFR: Schneider Electric
MFR #: HJL36070AA
UPC: 785901566489
Item #: 113812
Available to Order
$2572.32 each
Availability
Location Available Qty
Square D
Circuit breaker, PowerPacT H, 60A, 3 pole, 600VAC, 50kA, lugs, thermal magnetic, 80%
MFR: Schneider Electric
MFR #: HLL36060
UPC: 785901883692
Item #: 194516
Available to Order
$2941.05 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.