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 7489 - 7536 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
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 3-Pole, 240VAC are Circuit Protection Molded Case CircuitBreakers. Type BLH Application Electrical Distribution Standard UL 489 Voltage Rating 240V Amperage Rating 30A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 3P
MFR: Siemens
MFR #: B330H
UPC: 783643264007
Item #: 100981
Available to Order
$1924.86 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 3-Pole, 240VAC are Circuit Protection Molded Case CircuitBreakers. Type BL Application Electrical Distribution Standard UL 489 Voltage Rating 240V Amperage Rating 100A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 3P
MFR: Siemens
MFR #: B3100
UPC: 783643263802
Item #: 64515
Available to Order
$1743.01 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 3-Pole, 240VAC are Circuit Protection Molded Case CircuitBreakers. BREAKER 40A 3P 240V 10K BL
MFR: Siemens
MFR #: B340
UPC: 783643263734
Item #: 108186
Available to Order
$1271.23 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE BREAKER MOUNTING KIT FOR REVISED P1 PANELBOARDS. 240V 3-PHASE KIT WITH STRAP AND A 3-POLE 10KAIC CIRCUIT BREAKER (QR23B200).
MFR: Siemens
MFR #: MBKQR3200A
UPC: 804766155765
Item #: 614181
Available to Order
$9975.98 each
Availability
Location Available Qty
Siemens
BREAKER 15A 1P 120V 10K BL 10 KAIC
MFR: Siemens
MFR #: B115
UPC: 783643263413
Item #: 98255
Available to Order
$172.41 each
Availability
Location Available Qty
Siemens
BREAKER 30A 2P 120/240V 22K BLH 22 KAIC
MFR: Siemens
MFR #: B230H
UPC: 783643263918
Item #: 38325
Available to Order
$773.72 each
Availability
Location Available Qty
Siemens
BREAKER 15A 1P 120V 10K QPF2 GFCI 5MA
MFR: Siemens
MFR #: QF115A
UPC: 887621216511
Item #: 524987
Available to Order
$378.39 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PLUG-IN CIRCUIT BREAKER. 20A 1-POLE (10kA AT 120V) DUAL FUNCTION ARC-FAULT/GROUND-FAULT TYPE QFGA2N BREAKER.
MFR: Siemens
MFR #: Q120DFN
UPC: 804766906596
Item #: 1125132
Available to Order
$173.27 each
Availability
Location Available Qty
Discontinued
Leviton
Branch Circuit Breaker, GFCI 2-Pole 40A 120/240V, 10Ka Interrupt Rating
MFR: Leviton
MFR #: LB240-GF
UPC: 078477814642
Item #: 840470
In Stock -
$209.27 each
Availability
Location Available Qty
SQUARE D
QO115AFI Circuit Breaker, 15 Amp, 1 Pole, 120V
MFR: Schneider Electric
MFR #: QO115AFI
UPC: 785901301295
Item #: 134036
In Stock -
$261.38 each
Availability
Location Available Qty
Siemens
BRKR 30A 2P 120/240V 10K QPFB GFCI 5MA
MFR: Siemens
MFR #: QF230A
UPC: 887621216696
Item #: 594858
Available to Order
$699.54 each
Availability
Location Available Qty
Siemens
BRKR 20A 2P 120/240V 10K QPFB GFCI 5MA
MFR: Siemens
MFR #: QF220A
UPC: 887621216665
Item #: 580290
Available to Order
$651.95 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex, Triplex, Quadplex are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. BREAKER(2)40A 2P 120/240V 10K NON-CTLQT
MFR: Siemens
MFR #: Q24040CT2NC
UPC: 887621024505
Item #: 1212191
Available to Order
$280.07 each
Availability
Location Available Qty
Siemens
PADLOCKING DEVICE FOR 1 IN. BREAKERS
MFR: Siemens
MFR #: ECPLD3
UPC: 783087906266
Item #: 235253
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. STANDARD 40 DEG C BREAKER ED FRAME WITH STANDARD BREAKING CAPACITY. 20A 1-POLE (22KAIC AT 277V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES LINE AND LOAD SIDE LUGS (SA1E025) WIRE RANGE 14 - 10AWG (CU) / 12 - 10AWG (AL). DIMENSIONS (W x H x D) IN 1.00 x 6.4 x 3.92.
MFR: Siemens
MFR #: ED41B020L
UPC: 783643089860
Item #: 465569
Available to Order
$1281.52 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 100A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD,LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x Hx D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B100B
UPC: 783643414372
Item #: 103262
Available to Order
$4945.96 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Family G Mainsare Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type EQ Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 175A Trip Range Thermal Magnetic Interrupt Rating 22 AICNumber Of Poles 2P
MFR: Siemens
MFR #: MBK175A
UPC: 783643619883
Item #: 96639
Available to Order
$3048.58 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Sentron Molded Case Circuit Breakers - MCCB Locking and Interlocking Accessory are Circuit Protection Molded Case Circuit Breakers. BREAKER BQD/NGB 2-POLEHNDLE TIE AND PADLOCK
MFR: Siemens
MFR #: BQDHT2
UPC: 662643158908
Item #: 184201
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Type QS Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QSHH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 200A Trip Range Thermal Magnetic Interrupt Rating 42AIC Number Of Poles 2P
MFR: Siemens
MFR #: QSH2200
UPC: 783087935365
Item #: 1112723
Available to Order
$1285.00 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex, Triplex, Quadplex are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. BREAKER (2)20A 2P 120/240V 10K NON-CTLQT
MFR: Siemens
MFR #: Q22020CT2NC
UPC: 887621024321
Item #: 218919
Available to Order
$280.07 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V AFCI Circuit Breakers - 1-Pole, AFCI Combo - BAF, 10KAIC, 120VAC are Circuit Protection Molded Case Circuit Breakers. Sub Brand N/A Type BL Special Features N/A Application Electrical Distribution Standard UL 1699 Voltage Rating 120V Amperage Rating 20A Load Rating N/A Frequency Rating N/A Phase N/A Frame N/A Trip Type N/A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 1P
MFR: Siemens
MFR #: BA120AFC
UPC: 887621215002
Item #: 247138
Available to Order
$887.31 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Family G Mainsare Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Load center conversion kit 1-Phase main breaker.. Rated (100 - 125A) AIR 22 KA.
MFR: Siemens
MFR #: MBK100A
UPC: 783643387980
Item #: 553
Available to Order
$1209.52 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Family G Mainsare Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Load center conversion kit 1-Phase main breaker.. Rated (150 - 225A) AIR 22 KA.
MFR: Siemens
MFR #: MBK150A
UPC: 783643387997
Item #: 133019
Available to Order
$3048.58 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Family G Mainsare Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Load center conversion kit 1-Phase main breaker.. Rated (200 - 225A) AIR 22 KA.
MFR: Siemens
MFR #: MBK200A
UPC: 783643388017
Item #: 94592
Available to Order
$3048.58 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Circuit Breakers GFCI - Equipment Protect 2-pole plug-on 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Sub Brand N/A Type QE Special Features N/A Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 40A Load Rating N/A Frequency Rating N/A Phase N/A Frame N/A Trip Type N/A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: QE240
UPC: 783643305922
Item #: 1127685
Available to Order
$923.66 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 3-Pole, 240VAC are Circuit Protection Molded Case CircuitBreakers. Type BL Application Electrical Distribution Standard UL 489 Voltage Rating 240V Amperage Rating 60A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 3P
MFR: Siemens
MFR #: B360
UPC: 783643263765
Item #: 89272
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. STANDARD 40 DEG C BREAKER ED FRAME WITH STANDARD BREAKING CAPACITY. 30A 2-POLE (18KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES LINE AND LOAD SIDE LUGS (LN1E100) WIRE RANGE 10 - 1/0AWG (CU/AL). DIMENSIONS (W x Hx D) IN 2.00 x 6.4 x 3.92.
MFR: Siemens
MFR #: ED42B030L
UPC: 783643314863
Item #: 618573
Available to Order
$3834.28 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs - Type BQ, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. 2-Pole Common-Trip circuit breaker type BQH. Rated 120/240V (020A) (AIR 22 kA). Special features Load side lugs are included.
MFR: Siemens
MFR #: BQ2B020H
UPC: 783643161580
Item #: 201045
Available to Order
$758.28 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. STANDARD 40 DEG C BREAKER ED FRAME WITH STANDARD BREAKING CAPACITY. 15A 2-POLE (18KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES LINE AND LOAD SIDE LUGS (SA1E025) WIRE RANGE 14 - 10AWG (CU) / 12 - 10AWG (AL). DIMENSIONS (W x H x D) IN 2.00 x 6.4 x 3.92.
MFR: Siemens
MFR #: ED42B015L
UPC: 783643083769
Item #: 116313
Available to Order
$3834.28 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. Type QP/MP Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 100A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q2100H
UPC: 783643156395
Item #: 116350
Available to Order
$328.82 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. STANDARD 40 DEG C BREAKER ED FRAME WITH STANDARD BREAKING CAPACITY. 125A 3-POLE (18KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES LINE AND LOAD SIDE LUGS (TA1E6125) WIRE RANGE 3 - 3/0AWG (CU) / 1 - 2/0AWG (AL). DIMENSIONS (W x H x D) IN 3.00 x 6.4 x 3.92.
MFR: Siemens
MFR #: ED43B125L
UPC: 783643236257
Item #: 280847
Available to Order
Phone: 1-855-999-2372 Email Contact Us
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. Type QP/MP Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 125A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q2125H
UPC: 783643156401
Item #: 284891
Available to Order
$608.06 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Branch Main Breakers Non-reversible are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QNH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 150A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: QN2150H
UPC: 783643204300
Item #: 319404
Available to Order
$763.38 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 3-Pole, 240VAC are Circuit Protection Molded Case CircuitBreakers. Type BL Application Electrical Distribution Standard UL 489 Voltage Rating 240V Amperage Rating 70A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 3P
MFR: Siemens
MFR #: B370
UPC: 783643263772
Item #: 107904
Available to Order
$1547.44 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Specialty Load Centers Ground Bar Kits for ES and PL load centers. 15 positions with 2/0 lug.
MFR: Siemens
MFR #: EC2GB152
UPC: 040892697438
Item #: 81156
Available to Order
$25.97 each
Availability
Location Available Qty
Siemens
BREAKER BQD 3P 40A 480VAC 14KA 10 KAIC
MFR: Siemens
MFR #: BQD340
UPC: 783643277397
Item #: 21316
Available to Order
$2482.42 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 1-Pole, 120VAC are Circuit Protection Molded Case CircuitBreakers. Type BL Application Electrical Distribution Standard UL 489 Voltage Rating 120V Amperage Rating 40A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 1P
MFR: Siemens
MFR #: B140
UPC: 783643263468
Item #: 100571
Available to Order
$172.41 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 1-Pole, 120VAC are Circuit Protection Molded Case CircuitBreakers. Type HBL Application Electrical Distribution Standard UL 489 Voltage Rating 120V Amperage Rating 30A Trip Range Thermal Magnetic Interrupt Rating 65 AIC Number Of Poles 1P
MFR: Siemens
MFR #: B130HH
UPC: 783643264106
Item #: 290838
Available to Order
$583.29 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 1-Pole, 120VAC are Circuit Protection Molded Case CircuitBreakers. Type BLH Application Electrical Distribution Standard UL 489 Voltage Rating 120V Amperage Rating 30A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 1P
MFR: Siemens
MFR #: B130H
UPC: 783643263833
Item #: 91275
Available to Order
$386.00 each
Availability
Location Available Qty
Eaton
Eaton FAZ branch protector,UL 489 Industrial miniature circuit breaker - supplementary protector,Single package,High levels of inrush current are expected,20 A,10 kAIC,Single-pole,277 V,10-20X /n,1,50-60 Hz,Screw terminals,D Curve
MFR: Eaton
MFR #: FAZ-D20/1-NA-L-SP
Item #: 1628577
Available to Order
$60.20 each
Availability
Location Available Qty
Eaton
Eaton FAZ branch protector,UL 489 Industrial miniature circuit breaker - supplementary protector,Single package,High levels of inrush current are expected,15 A,10 kAIC,Single-pole,277 V,10-20X /n,1,50-60 Hz,Screw terminals,D Curve
MFR: Eaton
MFR #: FAZ-D15/1-NA-L-SP
Item #: 1628579
Available to Order
$60.20 each
Availability
Location Available Qty
Siemens
ACC_CIRCUIT_BREAKER FD6PL1-Handle Padlocking Device
MFR: Siemens
MFR #: FD6PL1
UPC: 783643241220
Item #: 247135
Available to Order
$109.80 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. Type BLH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V A mperage Rating 15A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: B215H
UPC: 783643263895
Item #: 134491
Available to Order
$773.72 each
Availability
Location Available Qty
Siemens
BREAKER 70A 2P 120/240V 10K BL 10 KAIC
MFR: Siemens
MFR #: B270
UPC: 783643263611
Item #: 105727
Available to Order
$753.13 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex, Triplex, Quadplex are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QT Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 40-20A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q24020CT2
UPC: 783643083950
Item #: 279875
Available to Order
$155.32 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex, Triplex, Quadplex are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QT Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 15-30A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q21530CT2
UPC: 887621024307
Item #: 226750
Available to Order
$155.32 each
Availability
Location Available Qty
Siemens
Auxiliary circuit switch -_
MFR: Siemens
MFR #: 5ST3010
UPC: 754554769783
Item #: 277958
Available to Order
$320.56 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. Type HBL Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V A mperage Rating 30A Trip Range Thermal Magnetic Interrupt Rating 65 AIC Number Of Poles 2P
MFR: Siemens
MFR #: B230HH
UPC: 783643264151
Item #: 155492
Available to Order
$1403.33 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.