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: 162,060
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
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$88.59
$77.39
$53.75
$47.29
Min.: 1
Mult.: 1
Circuit Breakers Manual Motor Controller 100 A 240 VAC 1 Pole Handle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$78.25
$68.35
$47.47
$41.74
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated

AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$103.93
$90.74
$63.06
$55.40
Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 16 A 2 Pole Handle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$110.94
$96.94
$67.37
$59.17
Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 30 A 2 Pole Handle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$47.38
$41.34
$28.73
$25.29
Min.: 1
Mult.: 1
IUG Circuit Breakers 9 A 1 Pole Toggle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$26.92
$25.37
$24.56
$23.32
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 17.5 A 1 Pole Rocker - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$59.44
$55.93
$54.29
$51.52
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 5 A 1 Pole Rocker - 40 C + 85 C Illuminated
ABB Circuit Breakers A2A 250 TMF 225-2250 3P UL +KA2225 BOT 3In Stock
$563.91
$499.08
$475.71
Min.: 1
Mult.: 1
ABB Circuit Breakers MCB S800 1P K 50A 5In Stock
$270.36
$224.08
$204.39
$188.67
Min.: 1
Mult.: 1
Circuit Breakers 50 A 1 Pole
ABB Circuit Breakers MCB ST200M 2P D 40A UL1077 3In Stock
2Expected 27/11/2026
$134.78
$103.39
$93.81
$84.75
Min.: 1
Mult.: 1
ST200M Circuit Breakers 40 A 2 Pole
ABB Circuit Breakers UL489 MCB 1P C 1A 480/277 4In Stock
230On Order
$63.08
$52.33
$48.27
$38.79
Min.: 1
Mult.: 1
SU200M Circuit Breakers 1 A 1 Pole
ABB Circuit Breakers UL489 MCB 1P Z 50A 240 10In Stock
$70.99
$60.29
$54.77
$43.70
Min.: 1
Mult.: 1
SU200M Circuit Breakers 50 A 1 Pole
ABB Circuit Breakers MCB SU200DC 2P K6A UL 5In Stock
$159.25
$132.05
$123.05
$101.34
$94.10
Min.: 1
Mult.: 1
APC by Schneider Electric Circuit Breakers MOLDED CASE CIRCUIT BRKR 600Y/347V 125A 1In Stock
$1,793.00
Min.: 1
Mult.: 1
Square D Circuit Breakers MINIATURE CIRCUIT BREAKER 600V 15A 1In Stock
$669.18
Min.: 1
Mult.: 1
IDEC Circuit Breakers Circuit Protector 2A 1In Stock
$61.23
$52.53
$49.94
$46.42
Min.: 1
Mult.: 1
NRA Circuit Breakers Magnetic 2 A 250 VAC 65 VDC 2 Pole Lever - 40 C + 85 C Non-Illuminated
IDEC Circuit Breakers Circuit Protector 5In Stock
$25.78
$23.33
$21.23
$20.05
Min.: 1
Mult.: 1
NRF Circuit Breakers 250 VAC 32 VDC 1 Pole - 10 C + 60 C
E-T-A Circuit Breakers Single pole press-to-reset thermal circuit breaker with extremely fast overload switching performance (R-type TO CBE to EN 60934). Miniaturised construction minimises PCB real estate required. Largely temperature-insensitive.x -E. Returning the rocke 33In Stock
$17.97
$12.22
$9.74
$9.03
Min.: 1
Mult.: 1
1410-L4 Circuit Breakers Thermal 2.5 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 70 C Non-Illuminated
E-T-A Circuit Breakers Min Ord Qty 10. 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 8In Stock
$32.41
$26.89
$20.46
$18.78
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker
E-T-A Circuit Breakers Very cost effective design to meet international requirements. No exposed metal parts which are current-carrying except for terminals. R-type TO CBE to EN 60934. Units built to order. For requests under 500 pcs contact Customer Service for verificati 60In Stock
$6.81
$6.41
$6.18
$4.81
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 15 A 240 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Single, two and three pole magnetic circuit breakers with trip-free mechanism and push/pull on/off manual actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (Stype MO or HM CBE to EN 60934) en 8In Stock
$125.95
$104.43
$86.25
$82.58
$80.02
Min.: 1
Mult.: 1
8340-G Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Very cost effective design to meet international requirements. No exposed metal parts which are current-carrying except for terminals. R-type TO CBE to EN 60934. Units built to order. For requests under 500 pcs contact Customer Servi 296In Stock
$7.28
$6.93
$6.68
$5.20
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 20 A 240 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Very cost effective design to meet international requirements. No exposed metal parts which are current-carrying except for terminals. R-type TO CBE to EN 60934. Units built to order. For requests under 500 pcs contact Customer Servi 82In Stock
$7.28
$6.93
$6.68
$5.20
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 7 A 240 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Bimetal operated single pole motor protection controls with automatic reset actuation, small physical size, reliable snap-action mechanism. Caution: In specifying these 2 products, care should be taken to ensure that automatic motor 5In Stock
$50.02
$41.49
$35.15
$32.00
Min.: 1
Mult.: 1
2-6500 Circuit Breakers Overcurrent Protection


E-T-A Circuit Breakers AC PEM, w/ 2 pole , 3A, white rocker, C14 inlet, pre-wired 5In Stock
$46.14
$38.27
$35.31
$30.00
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 3 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated Bulk