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.
More...


Please view our large selection of circuit breakers below.

Results: 151,472
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
Phoenix Contact Circuit Breakers CBMC E4 24DC/1-4A NO
136In Stock
$158.15
Min.: 1
Mult.: 1
CBMC Circuit Breakers Electronic 16 A 24 VDC 4 Pole - 25 C + 60 C Illuminated
Eaton Electrical Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K 3In Stock
$610.54
$449.56
$421.79
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers 20A, 2 POLE CIRCUIT BREAKER, POW-R-LINE 3In Stock
$317.36
$226.82
$213.00
$192.82
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type BR Breaker 10A/2 Pole 120/240V 10K 5In Stock
$220.39
$182.74
$170.29
$140.24
$130.22
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers QC , 1P, 100A, 120/240V, 10kaic 1In Stock
$479.66
$428.37
$405.50
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K 3In Stock
$220.39
$182.74
$170.29
$140.24
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EG 3P 80A adj therm 18kA CB w/end cap 1In Stock
$1,593.53
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU 3In Stock
$916.86
$722.70
$666.18
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type CH Breaker 40A/3 Pole 240V 10K 3In Stock
$842.79
$679.80
$635.65
Min.: 1
Mult.: 1


TE Connectivity / P&B Circuit Breakers 7A PUSH TO RESET 8,467In Stock
$5.63
$4.98
$4.49
$4.27
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
$40.95
Min.: 1
Mult.: 1
PTCB Circuit Breaker 12 mA
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH 87In Stock
$407.82
$393.77
$292.29
Min.: 1
Mult.: 1
W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 25 A 277 VAC 2 Pole Toggle - 40 C + 85 C Non-Illuminated


Phoenix Contact Circuit Breakers TMC 81C 20A 1,677In Stock
$29.34
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
$78.77
$77.52
$69.56
$66.16
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
$122.45
$119.99
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
Schneider Electric Circuit Breakers NSX400F 36kA AC 4P4D 400A 2.3 3In Stock
$7,417.41
Min.: 1
Mult.: 1
Circuit Breakers Solid State 400 A 690 VAC 4 Pole Toggle - 25 C + 70 C Illuminated
Eaton Electrical Circuit Breakers FAZ 3P 16A D CURVE ring term 3In Stock
$1,071.90
$711.48
$678.61
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 16 A 240 VAC, 415 VAC 3 Pole Handle - 40 C + 75 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA51 3P 60A 35KA FTFM 3In Stock
$1,130.42
$1,016.97
$955.37
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 60 A 690 VAC 600 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Schneider Electric Circuit Breakers Multi9 C60BPR 1P C 30A 10kA 277V UL489 21In Stock
4Expected 16/11/2026
$171.36
Min.: 1
Mult.: 1
Multi9
AIRPAX Circuit Breakers 93In Stock
$26.93
$21.94
$21.22
$20.92
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 5 A 1 Pole Push-Pull - 40 C + 85 C Non-Illuminated
ABB Circuit Breakers RCD F200 2P 40A 100MA 480Y/277 3In Stock
$918.29
$812.72
$732.36
Min.: 1
Mult.: 1
F200
Siemens Circuit Breakers MCSW 3VA53 3P 400A 65KA 1In Stock
$4,318.99
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 400 A 690 VAC 500 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA62 3P 250A 65KA ETU3-LI AL 1In Stock
$5,533.12
Min.: 1
Mult.: 1
3VA Electronic Circuit Breakers System Protection 250 A 690 VAC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers BRKR ED4 2P 480V 20A 1In Stock
$2,439.05
Min.: 1
Mult.: 1
Circuit Breakers Low Voltage 20 A 480 VAC 2 Pole Handle Non-Illuminated
Phoenix Contact Circuit Breakers CAPAROC E2 12-24DC/2-10A EX 43In Stock
$128.23
Min.: 1
Mult.: 1
Circuit Breakers Electronic 10 A 12 VDC, 24 VDC 2 Pole - 30 C + 65 C