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: 151,472
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, HydMag, 1 pl, 32VDC, 25A, rocker hndl 2In Stock
$18.74
$17.64
$17.11
$16.26
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 20 A 1 Pole Rocker - 40 C + 85 C Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$19.32
$18.23
$17.71
$16.78
Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 1 A 250 VAC 65 VDC 1 Pole Paddle - 40 C + 85 C Non-Illuminated Bulk
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$28.65
$26.94
$26.09
$24.77
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 1 Pole Paddle
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$44.25
$41.60
$40.36
$38.31
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 15 A 2 Pole Paddle - 40 C + 85 C Non-Illuminated
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 MCB SU200ML 2P K 13A UL 489 3In Stock
$144.10
$109.41
$101.34
$89.38
Min.: 1
Mult.: 1
SU200ML Circuit Breakers 13 A 2 Pole
ABB Circuit Breakers UL489 MCB 3P C 50A 240 7In Stock
35Expected 15/12/2026
$233.36
$200.26
$191.69
$180.43
Min.: 1
Mult.: 1
SU200M Circuit Breakers 50 A 3 Pole
ABB Circuit Breakers MCB SU200ML 3P K 60A UL 489 3In Stock
$253.11
$191.67
$181.34
$159.93
Min.: 1
Mult.: 1
SU200ML Circuit Breakers 60 A 3 Pole
Siemens Circuit Breakers BRKR 3VA51 3P 35A 25KA FTFM 2In Stock
$748.29
$673.19
$632.42
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 35 A 690 VAC 500 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers MCB 5SJ4 3P 240V 45A 10K D-TRIP 1In Stock
$301.59
$249.92
$232.69
$203.79
Min.: 1
Mult.: 1
Circuit Breakers Miniature 45 A 240 VAC 60 VDC 3 Pole Lever - 25 C + 55 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY4 3P 480V 0.5A 5K D-TRIP 1In Stock
$203.34
$173.04
$155.38
$132.33
Min.: 1
Mult.: 1
Circuit Breakers Miniature 500 mA 400 VAC 3 Pole Lever - 40 C + 70 C Non-Illuminated
Schneider Electric Circuit Breakers Acti9 iC60H 4P D 16A MCB 1In Stock
2On Order
$400.03
Min.: 1
Mult.: 1
IDEC Circuit Breakers Circuit Protector 2A 3In Stock
$32.51
$27.35
$25.50
$22.72
Min.: 1
Mult.: 1
NRA Circuit Breakers Magnetic 2 A 250 VAC 65 VDC 1 Pole Lever - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 6In Stock
$38.33
$31.80
$26.21
$23.13
Min.: 1
Mult.: 1
2-5700 Thermal Circuit Breakers Overcurrent Protection 2 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 9In Stock
$29.17
$24.20
$22.15
$21.14
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 15 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 9In Stock
$30.22
$25.97
$20.84
$19.56
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 12 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 9In Stock
$30.22
$25.07
$20.52
$18.10
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 15 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 5In Stock
$38.25
$31.73
$26.33
$23.26
Min.: 1
Mult.: 1
2-5700 Thermal Circuit Breakers Overcurrent Protection 15 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 8In Stock
$35.56
$29.50
$24.78
$21.90
Min.: 1
Mult.: 1
2-5700 Thermal Circuit Breakers Overcurrent Protection 25 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
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. Ret 68In Stock
$17.33
$15.37
$14.09
$12.16
Min.: 1
Mult.: 1
1410-L1 Thermal Circuit Breakers Overcurrent Protection 800 mA 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 1In Stock
$38.08
$31.59
$26.20
$23.15
$21.59
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection Rocker
E-T-A Circuit Breakers 10 pc min. 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 protectio 4In Stock
$36.48
$33.22
$30.83
$29.98
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection Rocker


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 8In Stock
20Expected 20/11/2026
$35.20
$29.20
$27.25
$22.99
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection 20 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated


E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/65VDC,F2, 1NO AUX, 16A 4In Stock
$66.53
$49.63
$46.15
$41.04
$39.63
Min.: 1
Mult.: 1
2210-T2 Thermal Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings see type 1140. 9In Stock
$24.16
$22.30
$17.75
$15.90
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 2 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated