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
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  • Appleton
  • Eaton Bussmann
  • Siemens
Eaton Bussmann Series
Eaton Bussmann series KTK-R fuse, Limitron, Fast-acting fuse, 1 A, Class CC, Non-indicating, Ferrule end x ferrule end, Standard, 600 V
MFR: Eaton Bussmann
MFR #: KTK-R-1
UPC: 051712420587
Item #: 52993
In Stock -
$40.74 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series KTK-R fuse, Limitron, Fast-acting fuse, 2 A, Class CC, Non-indicating, Ferrule end x ferrule end, Standard, 600 V
MFR: Eaton Bussmann
MFR #: KTK-R-2
UPC: 051712420600
Item #: 54437
In Stock -
$40.74 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series CHM modular fuse holder, Modular fuse holder
MFR: Eaton Bussmann
MFR #: CHM1DU
UPC: 051712362597
Item #: 183179
In Stock -
$46.73 each
Availability
Location Available Qty
Siemens
BREAKER 20A 1P 120V 10K BL
MFR: Siemens
MFR #: B120
UPC: 783643263420
Item #: 98980
Available to Order
$87.03 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
$129.87 each
Availability
Location Available Qty
Siemens
BREAKER 50A 2P 120/240V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q250
UPC: 783643148642
Item #: 60529
Available to Order
$129.87 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
$129.87 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
$63.45 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
$129.87 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 BL Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Am perage Rating 30A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: B230
UPC: 783643263550
Item #: 103369
Available to Order
$197.53 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 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q2100
UPC: 783643148680
Item #: 56475
Available to Order
$379.38 each
Availability
Location Available Qty
Siemens
BREAKER 20A 2P 120/240V 10K BL 10 KAIC
MFR: Siemens
MFR #: B220
UPC: 783643263536
Item #: 102714
Available to Order
$197.53 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 60A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q260
UPC: 783643148659
Item #: 61187
Available to Order
$129.87 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
$63.45 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. Dimensions (L x W x H) IN 3 x 2 x 3. Type QT for electrical distribution applications. Meets stds UL 489. Rated 120V (20-20A). Connector plug-in 1-Pole. (AIR 10 AIC). No special features listed.
MFR: Siemens
MFR #: Q2020
UPC: 783643148260
Item #: 55855
Available to Order
$136.15 each
Availability
Location Available Qty
Siemens
BREAKER 15A 2P 120/240V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q215
UPC: 783643148352
Item #: 57155
Available to Order
$129.87 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Circuit Breakers AFCI - Combo AFCI 1-pole plug-on 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. BREAKER 15A 1P 120V 10K QAF2 COMB AFCI
MFR: Siemens
MFR #: QA115AFC
UPC: 887621216207
Item #: 200840
Available to Order
$113.42 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Circuit Breakers AFCI - Combo AFCI 1-pole plug-on 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. BREAKER 20A 1P 120V 10K QAF2 COMB AFCI
MFR: Siemens
MFR #: QA120AFC
UPC: 887621216252
Item #: 201016
Available to Order
$113.42 each
Availability
Location Available Qty
Siemens
BREAKER 60A 2P 120/240V 10K BL 10 KAIC
MFR: Siemens
MFR #: B260
UPC: 783643263604
Item #: 10388
Available to Order
$197.53 each
Availability
Location Available Qty
Siemens
BRKR AFCI/GFCI 15A 1P 120V 10K Plug-in
MFR: Siemens
MFR #: Q115DF
UPC: 887621817305
Item #: 240854
Available to Order
$149.87 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 80A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q280
UPC: 783643156746
Item #: 61745
Available to Order
$379.38 each
Availability
Location Available Qty
Siemens
BREAKER 45A 2P 120/240V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q245
UPC: 783643167780
Item #: 99570
Available to Order
$129.87 each
Availability
Location Available Qty
Siemens
BREAKER 35A 2P 120/240V 10K QP 10 KAIC
MFR: Siemens
MFR #: Q235
UPC: 783643167650
Item #: 80323
Available to Order
$129.87 each
Availability
Location Available Qty
Appleton
CIRCUIT BREAKER 3P 50AT 240V
MFR: Appleton Electric
MFR #: AEAB13250C
UPC: 781381856133
Item #: 1443775
Available to Order
$4388.78 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series C.B.BF marine rated battery fuse, 250A
MFR: Eaton Bussmann
MFR #: CBBF-250
UPC: 051712202336
Item #: 1490138
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series CBBF marine rated battery fuse, Marine rated, 300A
MFR: Eaton Bussmann
MFR #: CBBF-300
UPC: 051712202343
Item #: 940815
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series CBBF marine rated battery fuse, Marine rated, 175A
MFR: Eaton Bussmann
MFR #: CBBF-175
UPC: 051712202305
Item #: 1417788
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series CBBF marine rated battery fuse, Marine rated, 60A
MFR: Eaton Bussmann
MFR #: CBBF-60
UPC: 051712202220
Item #: 952578
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series CBBF marine rated battery fuse, Marine rated, 100A
MFR: Eaton Bussmann
MFR #: CBBF-100
UPC: 051712202275
Item #: 354926
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series CBBF marine rated battery fuse, Marine rated, 75A
MFR: Eaton Bussmann
MFR #: CBBF-75
UPC: 051712202244
Item #: 1014158
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series high speed microswitch, 5A, With Indicator, Fuse Accessory
MFR: Eaton Bussmann
MFR #: 170H0069
UPC: 051712214872
Item #: 201637
In Stock -
$95.68 each
Availability
Location Available Qty
Appleton
GFI COVER ASSEMBLY
MFR: Appleton Electric
MFR #: GFS1
UPC: 781381822251
Item #: 793684
Available to Order
$1336.62 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series C.B.BF marine rated battery fuse, 125A
MFR: Eaton Bussmann
MFR #: CBBF-125
UPC: 051712202282
Item #: 952577
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series 1841 circuit breaker, Switchable, Surface Mount, Stainless steel nuts and washers, 42 Vdc, 150A, 3 kAIC at 30 Vdc, Automotive, Single-pole, 1/4 in-28 TPI stud, Black, Thermoplastic
MFR: Eaton Bussmann
MFR #: 184150F-03-1
UPC: 051712938570
Item #: 819202
Available to Order
$61.52 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series 1811 circuit breaker, Switchable, Surface Mount, Stainless steel nuts and washers, 30 Vdc, 150A, 3 kAIC at 30 Vdc, Automotive, Single-pole, 1/4 in-28 TPI stud, Black, Thermoplastic
MFR: Eaton Bussmann
MFR #: 181150F-03-1
UPC: 051712937689
Item #: 895782
Available to Order
$52.26 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series 1810 circuit breaker, Switchable, Surface mount, 30 Vdc, 70A, 3 kAIC at 30 Vdc, Automotive, Single-pole, 1/4 in-28 TPI stud, Black, Thermoplastic
MFR: Eaton Bussmann
MFR #: 181070F-01-1
UPC: 051712937290
Item #: 1292861
Available to Order
$49.91 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series 1810 circuit breaker, 30 Vdc, 80A, 3 kAIC at 30 Vdc, Black, Thermoplastic
MFR: Eaton Bussmann
MFR #: 181080F-01-1
UPC: 051712937337
Item #: 1254183
Available to Order
$49.91 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series C.B.BF marine rated battery fuse, 150A
MFR: Eaton Bussmann
MFR #: CBBF-150
UPC: 051712202299
Item #: 952480
Available to Order
$15.56 each
Availability
Location Available Qty
Eaton Bussmann Series
Eaton Bussmann series C.B.BF marine rated battery fuse, 200A
MFR: Eaton Bussmann
MFR #: CBBF-200
UPC: 051712202312
Item #: 952579
Available to Order
$15.56 each
Availability
Location Available Qty
Appleton
Explosion-Proof Dust-Ignition-Proof Circuit Breaker Station; 240 Volt AC
MFR: Appleton Electric
MFR #: ECS21151
UPC: 781381947947
Item #: 462475
Available to Order
$2208.25 each
Availability
Location Available Qty
Appleton
FUSED DISC SWITCH 60A 600V
MFR: Appleton Electric
MFR #: AEBB6036FDS
UPC: 781381847995
Item #: 857269
Available to Order
$8954.97 each
Availability
Location Available Qty
Appleton
CIRCUIT BREAKER 3P 80AT 480V
MFR: Appleton Electric
MFR #: AEBB13480C
UPC: 781381857871
Item #: 1256213
Available to Order
$6013.86 each
Availability
Location Available Qty
Appleton
CIRCUIT BREAKER 3P 25AT 480V
MFR: Appleton Electric
MFR #: AEAB13425C
UPC: 781381856188
Item #: 1191457
Available to Order
$4917.66 each
Availability
Location Available Qty
Appleton
100A 3P Circuit Breaker Ehd
MFR: Appleton Electric
MFR #: EB2EH3W100
UPC: 781381104647
Item #: 137799
Available to Order
$6019.40 each
Availability
Location Available Qty
Appleton
FUSED DISC SWITCH 30A 600V
MFR: Appleton Electric
MFR #: AEAB3036FDS
UPC: 781381847988
Item #: 59361
Available to Order
$8552.71 each
Availability
Location Available Qty
Appleton
2IN DISCON SW
MFR: Appleton Electric
MFR #: AEAB6036DS
UPC: 781381848039
Item #: 692441
Available to Order
$6635.82 each
Availability
Location Available Qty
Appleton
Non-Fused Disconnect Switch; 30 Amp, 600 Volt AC, 125/250 Volt DC, 3 Pole, Gray
MFR: Appleton Electric
MFR #: AEAB3036DS
UPC: 781381848022
Item #: 76816
Available to Order
$6274.67 each
Availability
Location Available Qty
Appleton
CIRCUIT BREAKER 2P 60AT 240V
MFR: Appleton Electric
MFR #: AEBB12260C
UPC: 781381857147
Item #: 1146865
Available to Order
$4917.66 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.