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: 162,060
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


E-T-A Circuit Breakers Single pole high performance thermal circuit breaker, with push-to-reset tease free, trip-free snap action mechanism (R-type TO CBE to EN 60934). Designed for threadneck panel mounting and for applications with a high fault current sw 1In Stock
$95.27
$72.69
$68.22
$61.50
Min.: 1
Mult.: 1
4130 Thermal Circuit Breakers Thermal Magnetic Push-Pull
E-T-A Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 8A 2In Stock
$31.56
$25.50
$24.28
$22.53
Min.: 1
Mult.: 1
4230-T Miniature Circuit Breakers Thermal Magnetic Toggle


E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 1In Stock
$72.79
$60.38
$56.15
$47.14
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed Single and multipole magnetic circuit breakers with trip-free mechanism and toggle a 10In Stock
$93.63
$78.32
$62.86
$62.29
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 6In Stock
$73.47
$60.95
$56.68
$47.58
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 40 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Combination of single pole circuit breaker and ON/OFF switch with soft-touch rocker actuation. Contoured rockers are available with a choice of colours and legends, with optional illumination. The 3131 is sealed to provide IP66 rated 9In Stock
$29.43
$24.42
$20.71
$19.08
Min.: 1
Mult.: 1
3131-A/C Circuit Breakers Thermal 20 A 1 Pole Rocker
E-T-A Circuit Breakers AC PEM, w/ 1 pole , 10A, pushbutton w/ white trip band, C14 inlet, pre-wired 4In Stock
$32.55
$27.01
$24.92
$20.64
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 10 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 10A, white rocker, C20 inlet, pre-wired 4In Stock
$46.13
$38.27
$35.31
$30.00
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 1 Pole Rocker - 30 C + 60 C 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
$38.79
$32.17
$29.63
$26.98
Min.: 1
Mult.: 1
3130-F Rocker
Weidmuller Circuit Breakers QL-A-1-13-DM-KM-2.0 2In Stock
$101.91
$82.42
$79.70
$74.85
Min.: 1
Mult.: 1
Hartland Controls / Littelfuse Circuit Breakers 120/240V 15A 1P CIRCUIT BREAKER, LUGS 23In Stock
$46.96
$38.96
$35.94
$30.53
Min.: 1
Mult.: 1
HCB Thermal Magnetic Circuit Breakers 15 A 120 VAC, 240 VAC 1 Pole Handle - 10 C + 60 C Non-Illuminated Bulk
Phoenix Contact Circuit Breakers TMC 71D 08A 1In Stock
$22.65
Min.: 1
Mult.: 1
TMC 7 Circuit Breakers Thermal Magnetic 8 A 277 VAC 60 VDC 1 Pole Lever - 35 C + 70 C Non-Illuminated
Altech Circuit Breakers 40A D Characteristic UL 508 1 POLE 9In Stock
1On Order
$38.42
$32.46
$26.27
$24.37
Min.: 1
Mult.: 1
UM 40 A 277 VAC 24 VDC 1 Pole Handle - 25 C + 55 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$199.92
$174.66
$121.37
$106.65
Min.: 1
Mult.: 1
Circuit Breakers Manual Motor Controller 100 A 277 VAC, 480 VAC 2 Pole Handle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr, HydMag, 2 pl, 250VAC, 60A 1In Stock
$102.55
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$111.84
$97.73
$67.89
$59.70
Min.: 1
Mult.: 1
Circuit Breakers 2 Pole Toggle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$112.92
$98.66
$68.54
$60.23
Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 2 Pole Handle - 40 C + 85 C Non-Illuminated

AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$122.74
$107.25
$74.48
$65.51
Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 2 Pole Handle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 3In Stock
$99.98
$87.30
$60.62
$53.28
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 100 mA Handle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$192.82
$168.45
$117.01
$102.82
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 15 A Handle - 40 C + 85 C Non-Illuminated
ABB Circuit Breakers MCB S200MUC 2P C 63A AC/DC 2In Stock
$400.33
$319.16
$297.93
Min.: 1
Mult.: 1
Circuit Breakers 63 A 2 Pole
ABB Circuit Breakers MCB S200MUC 2P K 5A AC/DC 4In Stock
$250.08
$199.52
$190.39
$174.52
Min.: 1
Mult.: 1
Circuit Breakers 5 A 2 Pole
ABB Circuit Breakers MCB S200MUC 3P K 20A AC/DC 3In Stock
$375.06
$304.37
$281.44
Min.: 1
Mult.: 1
Circuit Breakers 20 A 3 Pole
ABB Circuit Breakers MCB ST200M 3P B 60A UL1077 1In Stock
$223.19
$178.06
$169.92
$155.76
Min.: 1
Mult.: 1
ST200M Circuit Breakers 60 A 3 Pole
ABB Circuit Breakers UL489 MCB 2P Z 15A 480/277 10In Stock
$144.10
$126.54
$111.34
$95.66
Min.: 1
Mult.: 1
SU200M Circuit Breakers 15 A 2 Pole