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: 159,531
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) 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 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 4In Stock
$86.35
$71.63
$61.53
$56.51
Min.: 1
Mult.: 1
808 4 A 24 VDC 1 Pole Pushbutton - 30 C + 70 C Non-Illuminated


E-T-A Circuit Breakers 508, DM, 2CH, 24VDC, 1A-4A,Variou With Comm, CL2 17In Stock
$129.85
$108.62
$102.91
$85.76
$80.04
Min.: 1
Mult.: 1
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
$41.10
$34.10
$28.89
$26.62
Min.: 1
Mult.: 1
3130-F Circuit Breakers Thermal 2.5 A 240 VAC, 415 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 pole version, p 9In Stock
$48.09
$42.74
$39.64
$35.14
Min.: 1
Mult.: 1
3130-F Rocker
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
$53.58
$44.44
$36.87
$32.57
Min.: 1
Mult.: 1
3131-A/C Circuit Breakers Thermal 10 A 1 Pole Rocker
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 10In Stock
$56.66
$47.00
$43.34
$34.45
Min.: 1
Mult.: 1
3131-A/C Circuit Breakers Thermal 15 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 60 C 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 protection of motors 8In Stock
$47.95
$44.09
$37.47
$36.35
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker
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 10In Stock
$69.37
$57.56
$53.08
$42.87
$40.38
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection Rocker


E-T-A Circuit Breakers 508, 1P, DM, 48VDC, N/O, 16A 10In Stock
20Expected 27/11/2026
$152.25
$128.53
$121.77
$98.94
$95.72
Min.: 1
Mult.: 1
ESX10-TC Circuit Breakers Electronic 16 A 48 VDC 1 Pole Slide - 25 C + 60 C Illuminated
Eaton Electrical Circuit Breakers FAZ-C0,5/1-RT-SP FAZ-NA RT 1P .5A C C 3In Stock
$352.50
$265.42
$244.84
$219.99
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 500 mA 240 VAC 1 Pole Handle - 40 C + 75 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ 2P 6A C CURVE ring term 2In Stock
$655.96
$502.38
$480.72
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 6 A 240 VAC, 415 VAC 2 Pole Handle - 40 C + 75 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 3In Stock
$173.10
$151.25
$105.07
$92.33
Min.: 1
Mult.: 1
LEL/LML Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$156.47
$136.69
$95.01
$83.53
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$41.32
$38.91
$37.74
$35.74
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal Rocker
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$258.88
$226.13
$157.16
$138.12
Min.: 1
Mult.: 1
LEL/LML Circuit Breakers Hydraulic Magnetic 2 Pole Handle Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$154.14
$134.71
$93.60
$82.27
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$156.47
$136.69
$95.01
$83.53
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated

AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
$120.35
$105.07
$73.02
$64.21
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Handle Non-Illuminated
LUTZE / Amphenol Circuit Breakers LOCC-BOX-M-I DC12/24VDC, 1-8A, 5 CHARAC. 1In Stock
$141.06
$119.08
$112.83
$94.03
$87.75
Min.: 1
Mult.: 1
LOCC-BOX Circuit Breakers DC Breaker 8 A 12 VDC, 24 VDC - 25 C + 50 C Illuminated
Altech Circuit Breakers 2C60UR, 60A, MCB, C CHAR 1In Stock
1Expected 18/12/2026
$75.83
$51.86
$48.47
$44.17
Min.: 1
Mult.: 1
UR 60 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated


Altech Circuit Breakers TR11sup.prot.,wingW,bl. 4In Stock
$8.45
$8.13
$6.79
$6.61
Min.: 1
Mult.: 1
TR11 Circuit Breakers Supplementary Protector 12 A 240 VAC 50 VDC 1 Pole Pushbutton - 20 C + 60 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$1,471.97
Min.: 1
Mult.: 1
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$258.54
$225.87
$156.89
$137.85
Min.: 1
Mult.: 1
Circuit Breakers Special Construction 100 A 480 VAC 1 Pole Handle Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 3In Stock
$366.52
$320.16
$222.46
$195.50
Min.: 1
Mult.: 1
IEL Circuit Breakers 18 A 250 VAC 3 Pole Paddle - 40 C + 85 C Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr, HydMag, 3 pl, 250VAC, 20A, 400hz 2In Stock
$257.64
$225.05
$156.36
$137.41
Min.: 1
Mult.: 1