Circuit Breakers

 Circuit Breakers
Circuit breakers are in stock with same-day shipping at Mouser from leading manufacturers. Mouser is an authorized distributor for many circuit breaker manufacturers including ABB, Carling Technologies, Eaton, E-T-A Circuit Breakers, Phoenix Contact, Sensata, Schurter, Siemens, TE Connectivity & more.
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Please view our large selection of circuit breakers below.

Results: 151,467
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Series Product Type Current Rating Voltage Rating AC Voltage Rating DC Number of Poles Actuator Minimum Operating Temperature Maximum Operating Temperature Illuminated Packaging
Phoenix Contact Circuit Breakers CBMC E4 24DC/1-4A NO
136In Stock
$150.99
Min.: 1
Mult.: 1
CBMC Circuit Breakers Electronic 16 A 24 VDC 4 Pole - 25 C + 60 C Illuminated
Eaton Electrical Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K 3In Stock
$449.01
$330.62
$310.20
$278.36
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K 3In Stock
$162.08
$134.40
$125.23
$103.13
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EG 3P 80A adj therm 18kA CB w/end cap 1In Stock
$1,171.92
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU 3In Stock
$674.28
$531.49
$489.93
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type CH Breaker 40A/3 Pole 240V 10K 3In Stock
$619.81
$499.94
$467.48
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers 20A, 2 POLE CIRCUIT BREAKER, POW-R-LINE 3In Stock
$233.39
$166.81
$156.64
$147.45
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type BR Breaker 10A/2 Pole 120/240V 10K 5In Stock
$162.08
$134.40
$125.23
$103.13
$95.77
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers QC , 1P, 100A, 120/240V, 10kaic 1In Stock
$352.75
$315.03
$298.22
$273.51
Min.: 1
Mult.: 1
Phoenix Contact Circuit Breakers PTCB E1 24DC/4A NO 1,210In Stock
$31.94
Min.: 1
Mult.: 1
PTCB Circuit Breaker 12 mA
Phoenix Contact Circuit Breakers TMC 81C 20A 1,696In Stock
$21.57
Min.: 1
Mult.: 1
TMC 8 Circuit Breakers Thermal Magnetic 20 A 120 VAC 60 VDC 1 Pole Lever - 35 C + 70 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH 87In Stock
$244.02
$217.12
$207.21
$198.92
Min.: 1
Mult.: 1
W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 25 A 277 VAC 2 Pole Toggle - 40 C + 85 C Non-Illuminated


TE Connectivity / P&B Circuit Breakers 7A PUSH TO RESET 8,467In Stock
$4.97
$4.34
$3.56
Min.: 1
Mult.: 1
W28 Thermal Circuit Breakers Thermal Magnetic 7 A 250 VAC 32 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated Tray
Schneider Electric Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink 1In Stock
$1,031.22
Min.: 1
Mult.: 1
GV
Eaton Electrical Circuit Breakers FAZ 3P 16A D CURVE ring term 3In Stock
$695.45
$565.17
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 16 A 240 VAC, 415 VAC 3 Pole Handle - 40 C + 75 C Non-Illuminated
ABB Circuit Breakers F204 63A 30MA 110V PB TEST VOLTAGE 4In Stock
$947.34
Min.: 1
Mult.: 1
F200
Schneider Electric Circuit Breakers Multi9 C60BPR 1P C 30A 10kA 277V UL489 21In Stock
4Expected 2026/11/06
$126.02
Min.: 1
Mult.: 1
Multi9


E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot 86In Stock
$61.67
$52.58
$48.61
$42.68
$38.20
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection 16 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr,HydMag 18In Stock
$106.39
Min.: 1
Mult.: 1
Siemens Circuit Breakers Circuit breaker screw-type 84 A 3In Stock
$911.84
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 84 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA52 3P 250A 35KA FTFM 1In Stock
$2,384.02
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 250 A 690 VAC 750 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated


E-T-A Circuit Breakers Single pole miniaturised magnetic circuit breakers with unique high-speed operating mechanism and push/pull on/off manual actuation. Fitted with electrically separate excitation and switching circuits, and one pair of auxiliary contac 103In Stock
$62.72
$52.03
$48.94
$38.36
Min.: 1
Mult.: 1
808 400 mA 24 VDC 1 Pole Pushbutton - 30 C + 70 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ 2P 16A C CURVE ring term 13In Stock
$482.45
$399.65
$368.32
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 16 A 240 VAC, 415 VAC 2 Pole Handle - 40 C + 75 C Non-Illuminated
ABB Circuit Breakers UL489 MCB 3P C 50A 240 9In Stock
35On Order
$233.40
$203.50
$184.56
$154.35
Min.: 1
Mult.: 1
SU200M Circuit Breakers 50 A 3 Pole


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 4In Stock
$348.93
Min.: 1
Mult.: 1
Circuit Breakers Manual Motor Controller 100 A 120 VAC, 240 VAC 3 Pole Handle Non-Illuminated