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: 151,470
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
$28.94
Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 15 A 1 Pole Push-Pull - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$18.71
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 15 A 1 Pole Push to Reset - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 11In Stock
$49.64
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 12 A 2 Pole Push to Reset - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 13In Stock
$44.55
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 1 A 2 Pole Rocker - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 1In Stock
$44.55
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
$63.20
Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 7 A 2 Pole Paddle - 40 C + 85 C
ABB Circuit Breakers RCD 4P 40A 300MA 2In Stock
1Expected 2026/11/02
$656.59
$581.12
$523.68
Min.: 1
Mult.: 1
F200
ABB Circuit Breakers UL489 MCB 2P C 16A 480/277 11In Stock
$144.13
$113.09
$104.65
$94.09
Min.: 1
Mult.: 1
SU200M Circuit Breakers 16 A 2 Pole
ABB Circuit Breakers THHQB MCB 20A 22KA 2P 120/240V 3In Stock
$436.90
$392.50
Min.: 1
Mult.: 1
ABB Circuit Breakers THQB MCB 50A 10KA 3P 240V ST1 1In Stock
$1,263.27
Min.: 1
Mult.: 1
ABB Circuit Breakers CIRCUIT BREAKER 1P 20A 120/240V 10KA 5In Stock
$128.71
$108.78
$101.46
Min.: 1
Mult.: 1
Circuit Breakers 20 A 1 Pole
Siemens Circuit Breakers CIRCUIT-BREAKER S00 4A NO OVERLOAD 3In Stock
$294.32
$252.64
$238.36
$226.08
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Starter Combination 4 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S00 FOR XFRMR 1.4-2A AUX 1NO+1NC 1In Stock
$368.94
$319.03
$309.58
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Transformer Protection 2 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA51 3P 20A 65KA FTFM NAV 1In Stock
$1,021.01
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 20 A 690 VAC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers MCB 5SJ4 2P 480/277 8A 10K C-TRIP 1In Stock
$162.92
$147.03
$141.03
$130.81
Min.: 1
Mult.: 1
Circuit Breakers Miniature 8 A 277 VAC, 480 VAC 60 VDC 2 Pole Lever - 25 C + 55 C Non-Illuminated
Siemens Circuit Breakers BREAKER BQD 3P 25A 480VAC 14KA 1In Stock
$1,147.49
Min.: 1
Mult.: 1
Circuit Breakers Thermal Magnetic 25 A 480 VAC 3 Pole Handle + 40 C Non-Illuminated
Siemens Circuit Breakers BREAKER CQD 240VAC 1A-1B AUX SW 1In Stock
$690.08
$610.89
$596.64
Min.: 1
Mult.: 1
Circuit Breakers Molded 240 VAC Non-Illuminated
Schneider Electric Circuit Breakers MOLDED CASE CIRCUIT BREAKER 277V 30A 1In Stock
$309.06
Min.: 1
Mult.: 1
BDA
Schneider Electric Circuit Breakers MotBreak GV4PE Th/Mag 115A 100kA Elink 1In Stock
$1,226.01
Min.: 1
Mult.: 1
GV


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
$58.39
$48.44
$42.30
$40.08
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 12 A 415 VAC 50 VDC 2 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
$61.09
$50.68
$41.98
$37.74
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 10 A 50 VDC Rocker - 30 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). Single hole threadneck mounting. Type 1410-G1 features changeover contacts suitable for providing statu 1In Stock
$18.61
$16.50
$15.12
$11.69
Min.: 1
Mult.: 1
1410-G1 Thermal Circuit Breakers Overcurrent Protection 1.5 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 70 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). Single hole threadneck mounting. Type 1410-G1 features changeover contacts suitable for providing statu 42In Stock
$19.43
$17.50
$16.05
$12.48
Min.: 1
Mult.: 1
1410-G1 Thermal Circuit Breakers Overcurrent Protection 1.5 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 70 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 19In Stock
$42.14
$37.08
$36.96
$24.84
$21.74
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 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 6In Stock
$44.51
$36.93
$28.46
$26.61
$23.28
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker