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
AIRPAX Circuit Breakers Cir Brkr,HydMag 14In Stock
$99.17
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 7 A Handle - 40 C + 85 C Non-Illuminated
Siemens Circuit Breakers MSP S00 2.8-4A AUX 1NO 1NC SCREW 10In Stock
$340.17
$284.81
$267.56
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 4 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S2 CLASS 10 42-52A SCREW 7In Stock
$660.82
$580.69
$545.52
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 52 A 690 VAC 3 Pole Rotary - 20 C + 60 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 86In Stock
$61.67
$52.58
$48.61
$42.68
$38.20
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection 16 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr,HydMag 18In Stock
$106.39
Min.: 1
Mult.: 1
Siemens Circuit Breakers Circuit breaker screw-type 84 A 3In Stock
$1,093.03
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 84 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA52 3P 250A 35KA FTFM 1In Stock
$2,384.02
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 250 A 690 VAC 750 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated


E-T-A Circuit Breakers Single pole miniaturised magnetic circuit breakers with unique high-speed operating mechanism and push/pull on/off manual actuation. Fitted with electrically separate excitation and switching circuits, and one pair of auxiliary contac 103In Stock
$62.72
$52.03
$48.94
$38.36
Min.: 1
Mult.: 1
808 400 mA 24 VDC 1 Pole Pushbutton - 30 C + 70 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ 2P 16A C CURVE ring term 13In Stock
$482.45
$399.65
$368.32
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 16 A 240 VAC, 415 VAC 2 Pole Handle - 40 C + 75 C Non-Illuminated
ABB Circuit Breakers UL489 MCB 3P C 50A 240 9In Stock
35On Order
$233.40
$200.29
$191.72
$180.46
Min.: 1
Mult.: 1
SU200M Circuit Breakers 50 A 3 Pole


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 488In Stock
$13.34
$12.40
$10.97
$9.52
Min.: 1
Mult.: 1
1620 Miniature Circuit Breakers Automotive 7.5 A 24 VDC 1 Pole Push to Reset - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 9In Stock
$223.12
$223.06
$184.59
Min.: 1
Mult.: 1
217 Circuit Breakers Hydraulic Magnetic 20 A 3 Pole Handle - 40 C + 85 C Non-Illuminated
Schneider Electric Circuit Breakers NSX400F 36kA AC 4P4D 400A 2.3 3In Stock
$5,347.96
Min.: 1
Mult.: 1
Circuit Breakers Solid State 400 A 690 VAC 4 Pole Toggle - 25 C + 70 C Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 4In Stock
$348.93
Min.: 1
Mult.: 1
Circuit Breakers Manual Motor Controller 100 A 120 VAC, 240 VAC 3 Pole Handle Non-Illuminated
Schneider Electric Circuit Breakers NSX100H 70kA AC 3P3D 100A 2.2 1In Stock
$2,064.37
Min.: 1
Mult.: 1
C10
Square D Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A 1In Stock
$1,701.31
Min.: 1
Mult.: 1
HGF
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), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 160In Stock
$22.68
$17.79
$16.44
$16.40
Min.: 1
Mult.: 1
106-M2 Thermal Circuit Breakers Overcurrent Protection 3 A 240 VAC 48 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 70In Stock
$42.95
$37.81
$32.94
$30.68
Min.: 1
Mult.: 1
2-5700 Thermal Circuit Breakers Overcurrent Protection 38 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 108In Stock
$22.49
$18.67
$17.21
$16.36
Min.: 1
Mult.: 1
2-5700 Thermal Circuit Breakers Overcurrent Protection 10 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 63In Stock
$23.09
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 15 A 250 VAC 65 VDC 1 Pole Push-Pull - 40 C + 85 C Non-Illuminated
Siemens Circuit Breakers MSP S0 9 - 12.5A SCREW 9In Stock
$328.91
$272.56
$253.77
$222.25
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 12.5 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Phoenix Contact Circuit Breakers TCP 10/16A
411In Stock
11On Order
$26.74
Min.: 1
Mult.: 1
Circuit Breakers Thermal 16 A 250 VAC 72 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 92In Stock
$39.97
$33.17
$30.59
$26.50
Min.: 1
Mult.: 1
2-6500 Circuit Breakers Overcurrent Protection 2 A 250 VAC 28 VDC 1 Pole - 10 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole high performance thermal-magnetic circuit breaker, with tease-free, trip-free, snap action mechanism and push/pull on/off actuation (M-type TM CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position. 13In Stock
$337.96
$302.02
Min.: 1
Mult.: 1
452 Circuit Breakers Thermal Magnetic 100 A 28 VDC 1 Pole Pushbutton - 55 C + 75 C Non-Illuminated


TE Connectivity / P&B Circuit Breakers 0.75A PUSH TO RESET 522In Stock
$7.64
$7.04
$6.44
$5.99
Min.: 1
Mult.: 1
W28 Thermal Circuit Breakers Thermal Magnetic 750 mA 250 VAC 32 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated