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 (GBP) 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
TE Connectivity / P&B Circuit Breakers 50A 2 POLE 2 TOGGLE 71In Stock
£134.51
Min.: 1
Mult.: 1
W9 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 50 A 277 VAC 2 Pole Toggle - 40 C + 85 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 167In Stock
£32.30
£27.39
£25.06
£20.99
£19.90
Min.: 1
Mult.: 1
2-6500 Circuit Breakers Overcurrent Protection 10 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 toggle actuation (S-type TM CBE to EN 60934). Options include auxiliary contacts, a moulded flame retardant enclosure for added enviro 2In Stock
£1,028.22
Min.: 1
Mult.: 1
437 Thermal Circuit Breakers Thermal Magnetic Toggle


TE Connectivity / P&B Circuit Breakers 10A PUSH TO RESET 4,339In Stock
£3.95
£3.52
£2.65
£2.58
Min.: 1
Mult.: 1
W28 Thermal Circuit Breakers Thermal Magnetic 10 A 250 VAC 32 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL 7A BLK 599In Stock
£6.83
£5.25
£4.37
£3.89
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
TE Connectivity / P&B Circuit Breakers 1pole 20Amp Toggle Mag circuit breaker 123In Stock
£57.95
£54.12
£52.67
Min.: 1
Mult.: 1
W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 20 A 277 VAC 1 Pole Toggle - 40 C + 85 C Non-Illuminated Tray
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 50A BLK 128In Stock
£60.57
£54.71
£50.78
£49.55
Min.: 1
Mult.: 1
W9 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 50 A 65 VDC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
Siemens Circuit Breakers MSP S2 CLASS 10 49-59A SCREW 3In Stock
£496.17
£410.88
£378.52
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 59 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr,HydMag 4In Stock
£416.74
£361.17
Min.: 1
Mult.: 1
No
AP Circuit Breakers 20 A 50 VDC 1 Pole Toggle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
£1,331.35
£1,153.82
Min.: 1
Mult.: 1
No
AP Circuit Breakers Hydraulic Magnetic 20 A 250 VAC 80 VDC 3 Pole Toggle - 40 C + 100 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 1In Stock
£1,314.92
£1,139.66
Min.: 1
Mult.: 1
No
AP Circuit Breakers 5 A 250 VAC 50 VDC 2 Pole Toggle Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 10In Stock
£638.63
£553.53
Min.: 1
Mult.: 1
No
AP Circuit Breakers Hydraulic Magnetic 750 mA 240 VAC 50 VDC 1 Pole Toggle - 40 C + 100 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 31In Stock
£1,386.09
£1,320.10
Min.: 1
Mult.: 1
No
AP Circuit Breakers 5 A 250 VAC 50 VDC 2 Pole Toggle Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 2In Stock
£638.63
£553.53
Min.: 1
Mult.: 1
No
AP Circuit Breakers 20 A 250 VAC 50 VDC 1 Pole Toggle 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 20In Stock
£28.03
£24.10
£16.91
£15.62
Min.: 1
Mult.: 1
2-5700 Thermal Circuit Breakers Overcurrent Protection Push to Reset
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 10In Stock
£60.76
£40.22
£39.65
£31.99
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 15 A 415 VAC 50 VDC 2 Pole 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 36In Stock
£14.36
£12.95
£11.86
£9.23
Min.: 1
Mult.: 1
1410-G1 Thermal Circuit Breakers Overcurrent Protection 2.5 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 14In Stock
£14.59
£13.14
£12.05
£9.37
Min.: 1
Mult.: 1
1410-G1 Thermal Circuit Breakers Overcurrent Protection 6.3 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 pro 9In Stock
£54.27
£40.76
£37.89
£33.41
£29.94
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker
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 16In Stock
£17.02
£15.50
£14.20
£10.76
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 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 38In Stock
£17.02
£12.15
£11.05
£10.05
Min.: 1
Mult.: 1
104 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 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 40In Stock
£17.09
£15.57
£14.26
£11.10
£9.18
Min.: 1
Mult.: 1
106-M2 Thermal Circuit Breakers Overcurrent Protection 1.6 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 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), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 40In Stock
£17.09
£12.46
£11.34
£10.29
Min.: 1
Mult.: 1
106-M2 Thermal Circuit Breakers Overcurrent Protection 500 mA 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 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), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 27In Stock
£17.09
£15.57
£14.26
£10.44
Min.: 1
Mult.: 1
106-M2 Thermal Circuit Breakers Overcurrent Protection 7 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 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), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 44In Stock
£17.09
£15.57
£14.26
£11.10
£9.18
Min.: 1
Mult.: 1
106-M2 Thermal Circuit Breakers Overcurrent Protection 8.5 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated