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: 151,471
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 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
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
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH 87In Stock
$248.22
$230.97
$214.96
$207.10
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
$4.33
$3.79
$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
Phoenix Contact Circuit Breakers PTCB E1 24DC/4A NO 1,205In Stock
$31.94
Min.: 1
Mult.: 1
PTCB Circuit Breaker 12 mA


Phoenix Contact Circuit Breakers TMC 81C 20A 1,673In 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 40A TOGGLE ACTUATOR 422In Stock
$57.93
$57.01
$51.16
$48.66
$48.09
Min.: 1
Mult.: 1
W31 Circuit Breakers Thermal 40 A 240 VAC 50 VDC 1 Pole Toggle - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position. Thr 354In Stock
$90.05
$88.25
Min.: 1
Mult.: 1
413 Thermal Circuit Breakers Thermal Magnetic 80 A 115 VAC 28 VDC 1 Pole Push-Pull - 55 C + 75 C Non-Illuminated


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) integral type. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings see 297In Stock
$22.20
$18.42
$17.00
$15.21
Min.: 1
Mult.: 1
104 Thermal Circuit Breakers Overcurrent Protection 4 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole switch/thermal circuit breaker (S-type TO CBE to EN 60934) with tease-free, trip-free, snap action mechanism. Designed for snap-in panel mounting utilising round hole or industry standard fuse-holder cut-out dimensions. Fe 92In Stock
$24.10
$22.41
$17.70
$17.68
Min.: 1
Mult.: 1
1110-Fx12-P1M1 Circuit Breakers Thermal 2.5 A 250 VAC 50 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Single pole, thermal miniaturised circuit breaker designed for automotive applications. Fits into fuse blocks designed to ISO 8820-3, Type F. Automatic reset (for DC 12 V only) and open circuit (modified reset to SAE) version optional. Open circuitve 403In Stock
$11.86
$8.34
$8.12
$6.57
Min.: 1
Mult.: 1
1620 Miniature Circuit Breakers Automotive 15 A 12 VDC 1 Pole - 40 C + 85 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 190In Stock
$17.68
$14.68
$13.54
$11.22
Min.: 1
Mult.: 1
1410-G1 Thermal Circuit Breakers Overcurrent Protection 2 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 70 C Non-Illuminated
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 190In Stock
$36.26
$30.09
$27.76
$22.98
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
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$1,219.04
Min.: 1
Mult.: 1
AP Circuit Breakers Hydraulic Magnetic 3 A 240 VAC 50 VDC 2 Pole Toggle - 40 C + 100 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 2In Stock
$1,318.62
$1,274.17
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 1.1-1.6A SCREW 15In Stock
$235.32
$207.90
$191.88
$181.02
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 1.6 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S00 4.5-6.3A AUX 1NO 1NC SCREW 7In Stock
$340.17
$284.81
$267.56
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 6.3 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S00 11-16A AUX 1NO 1NC SCREW 5In Stock
$390.11
$328.16
$298.98
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 16 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated