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: 151,409
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 1In Stock
Min.: 1
Mult.: 1

IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 5 A 250 VAC 80 VDC 1 Pole Handle - 40 C + 85 C Non-Illuminated
ABB Circuit Breakers MCB ST200M 2P D 25A UL1077 5In Stock
Min.: 1
Mult.: 1
ST200M Circuit Breakers 25 A 2 Pole
ABB Circuit Breakers MCB ST200M 3P K 8A UL1077 5In Stock
Min.: 1
Mult.: 1
ST200M Circuit Breakers 8 A 3 Pole
ABB Circuit Breakers UL489 MCB 1P C 63A 240 3In Stock
Min.: 1
Mult.: 1
SU200M Circuit Breakers 63 A 1 Pole
ABB Circuit Breakers CIRCUIT BREAKER 3P 30A 240 10KA 3In Stock
Min.: 1
Mult.: 1
Circuit Breakers 30 A 3 Pole
Siemens Circuit Breakers BRKR 3VA11 1P 80A 25KA FTFM BOX 1In Stock
Min.: 1
Mult.: 1
3VA Circuit Breakers Line Protection 80 A 415 VAC 125 VDC 1 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA51 3P 100A 25KA ATAM 1In Stock
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 100 A 690 VAC 500 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers MCB 5SJ4 1P 277V 13A 10K C-TRIP 1In Stock
4Expected 02/12/2026
Min.: 1
Mult.: 1
Circuit Breakers Miniature 13 A 277 VAC 60 VDC 1 Pole Lever - 25 C + 55 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY6 3P 480V 0.1A 5K C-TRIP 1In Stock
2Expected 02/11/2026
Min.: 1
Mult.: 1
Siemens Circuit Breakers DOOR,15"x18" 1In Stock
Min.: 1
Mult.: 1
IDEC Circuit Breakers Circuit Protector 2A 2In Stock
Min.: 1
Mult.: 1

NRA Circuit Breakers Magnetic 2 A 250 VAC 65 VDC 1 Pole Lever - 40 C + 85 C Non-Illuminated
IDEC Circuit Breakers NRPS Crkt Brkr PCB 5Amp 24In Stock
Min.: 1
Mult.: 1

Circuit Breakers Thermal 5A 250 VAC 32 VDC 1 Pole Push to Reset - 10 C + 50 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
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
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
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
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
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
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
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
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
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 11In Stock
20Expected 20/11/2026
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, PL, 277VAC/65VDC, T1, 1NC AUX INT and ON, 1.5A 1In Stock
Min.: 1
Mult.: 1

2210-S2 Thermal Circuit Breakers Thermal Magnetic Toggle


E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/65VDC,F2, 1NO AUX, 16A 4In Stock
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
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