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All Products > Electromechanical > Circuit Breakers
Circuit breakers are available at Mouser Electronics from industry leading manufacturers.  Mouser is an authorized distributor for many circuit breaker manufacturers including Altech, Carling, Cooper Bussmann, Littelfuse, Schurter, TE Connectivity, & more. Please view our selection of circuit breakers below.
Category   Electromechanical >  Circuit Breakers

Available Filters 7,566 Matches  

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Compare up to 20 parts.
Select ImageMouser Part # Mfr. Part # Mfr. Description Documents Availability Pricing
(USD)
Quantity RoHS Product Product Type Current Rating Voltage Rating AC Voltage Rating DC Number of Poles Actuator Type Circuit Function Series Operating Temperature Range Illuminated
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TE Connectivity / P&B W23-X1A1G-2
 Enlarge
TE Connectivity / P&B Circuit Breakers 2A PUSH/PULL ACT.
Page 2,040

Data Sheet
64
In Stock
1: $36.43
10: $33.99
25: $31.87
50: $28.84
100: $26.93



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 2 A 240 V 50 V 1 Pole Pushbutton Series trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W68-X2Q12-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30AMP 277VAC TOGGLE 2 POLE
Data Sheet 56
In Stock
1: $37.85
25: $34.52
50: $32.04
100: $29.68
200: $28.66



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 277 V 2 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-3
 Enlarge
TE Connectivity / P&B Circuit Breakers 3A TOGGLE ACTUATOR
Page 2,040

Data Sheet
92
In Stock
1: $43.54
10: $40.64
25: $38.10
50: $34.47
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 3 A 240 V 50 V 1 Pole Toggle Series trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1A TOGGLE ACTUATOR
Page 2,040

Data Sheet
103
In Stock
1: $44.41
10: $41.69
25: $38.85
50: $35.15
100: $27.75



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 1 A 240 V 50 V 1 Pole Toggle Series trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W92-X112-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A 2 POLE 2 TOGGLE
Page 2,041

Data Sheet
99
In Stock
1: $46.59
10: $41.85
25: $39.26
50: $35.94
100: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 277 V 2 Pole Toggle Series trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W92-X112-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30A 2 POLE 2 TOGGLE
Page 2,041

Data Sheet
84
In Stock
1: $46.59
10: $41.85
25: $39.26
50: $35.94
100: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 277 V 2 Pole Toggle Series trip W9 - 40 C to + 85 C Not Illuminated
Phoenix Contact 5531082 Phoenix Contact Circuit Breakers THERMO CB 5.0A
Page 2,042 35
In Stock
1: $47.33
10: $43.20
25: $42.07
50: $40.68
100: View



Min.: 1
Mult.: 1
Thermal Magnetic Circuit Breakers Circuit Breakers 5 A 1 Pole Pushbutton TMC - 10 C to + 60 C Not Illuminated
TE Connectivity / P&B W68-X2Q12-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A 2 POLE 2 TOGGLE
Page 2,041

Data Sheet
60
In Stock
1: $50.50
10: $47.13
25: $44.19
50: $39.97
100: $35.41



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 277 V 2 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W68-X2Q12-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A 2 POLE 2 TOGGLE
Page 2,041

Data Sheet
100
In Stock
1: $51.54
10: $49.32
25: $45.10
50: $40.79
100: $34.44



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 10 A 277 V 2 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W93-X112-40
 Enlarge
TE Connectivity / P&B Circuit Breakers 40A 3 POLE TOGGLE
Data Sheet 22
In Stock
1: $82.04
25: $70.77
50: $65.55
100: $63.94



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 40 A 277 V 3 Pole Toggle Series trip W9 - 40 C to + 85 C Not Illuminated
Phoenix Contact 0903022
 Enlarge
Phoenix Contact Circuit Breakers EC-E1 0,5A 0.5A, N/O SIGNAL CNT
Data Sheet 62
In Stock
1: $85.59
10: $78.12
25: $76.07
50: $73.57
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Electronic 500 mA 24 V 1 Pole Slide Switch EC-E 0 C to + 50 C Not Illuminated
Phoenix Contact 0903023
 Enlarge
Phoenix Contact Circuit Breakers EC-E1 1A 1 A, N/O SIGNAL CNT
Page 2,803

Data Sheet
36
In Stock
1: $85.59
10: $78.12
25: $76.07
50: $73.57
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Electronic 1 A 24 V 1 Pole Slide Switch EC-E 0 C to + 50 C Not Illuminated
Schurter 4404.0005
 Enlarge
Schurter Circuit Breakers 12A 240V AC / 48V DC SNAP-IN MOUNT
Page 2,803

Data Sheet
2,105
In Stock
1: $1.96
10: $1.86
25: $1.74
50: $1.63
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 12 A 240 V 48 V 1 Pole Pushbutton T9 - 5 C to + 60 C Not Illuminated
Carling Technologies CTB-B-B-05 Carling Technologies Circuit Breakers 5 AMP 50VDC PNL MNT
Page 2,039

Data Sheet
1,244
In Stock
1: $2.09
10: $1.72
25: $1.62
50: $1.57



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 5 A 250 V 32 V 1 Pole Rocker CTB - 10 C to + 60 C Not Illuminated
Schurter 4404.0101
 Enlarge
4404.0101

New Product
New Product


Schurter Circuit Breakers 1 pole 8A THT Term for PCB mounting
Page 2,043

Data Sheet
1,779
In Stock
1: $3.20
50: $2.94
100: $2.71
500: $2.15
1,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 8 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-823 - 5 C to + 60 C Not Illuminated
Carling Technologies CMB-033-11C3N-B-A
 Enlarge
Carling Technologies Circuit Breakers 3 AMP PLASTIC BLK
Page 2,039

Data Sheet
890
In Stock
1: $3.44
10: $2.87
25: $2.73
50: $2.62
100: $2.35



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 3 A 125 V to 250 V 32 V 1 Pole Pushbutton CMB - 10 C to + 60 C Not Illuminated
Schurter TS-701-HT-25P
 Enlarge
Schurter Circuit Breakers 25A Thermal Reset 1-pole w/ nut
Data Sheet 745
In Stock
1: $3.89
10: $3.46
25: $3.10
50: $2.94
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 25 A 125 V, 250 V 50 V 1 Pole Pushbutton TS-LINE - 10 C to + 60 C Not Illuminated
Schurter 4430.1089
 Enlarge
Schurter Circuit Breakers TA45 BLK ROCKER 15A
Page 2,043

Data Sheet
237
In Stock
1: $18.10
10: $16.15
25: $14.50
50: $13.73



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 15 A 240 V 60 V 2 Pole Rocker ON/OFF TA45 - 10 C to + 55 C
Schurter 4430.1201
 Enlarge
Schurter Circuit Breakers TA45 BLK ROCKER 5.0A
Page 2,043

Data Sheet
372
In Stock
More Info Available
1: $18.26
10: $16.23
25: $14.61
50: $13.80



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 5 A 240 V 60 V 2 Pole Rocker ON/OFF TA45 - 10 C to + 55 C
Schurter 4430.2305
 Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 15A
Page 2,043

Data Sheet
204
In Stock
1: $26.23
10: $23.72
25: $21.17
50: $20.00



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 15 A 240 V 60 V 2 Pole Rocker ON/OFF TA45 - 10 C to + 55 C
Schurter 4430.2304
 Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 10A
Page 2,043

Data Sheet
197
In Stock
1: $27.69
10: $24.43
25: $22.14
50: $20.90



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 10 A 240 V 60 V 2 Pole Rocker ON/OFF TA45 - 10 C to + 55 C
Carling Technologies CA2-B0-34-630-121-D
 Enlarge
Carling Technologies Circuit Breakers 30 A TWO POLE
Page 2,038

Data Sheet
93
In Stock
1: $75.48
10: $53.47
25: $49.38
50: $44.03
100: $43.45



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 277 V 80 V 2 Pole Handle Series Trip (Current) C Series - 40 C to + 85 C Not Illuminated
Carling Technologies CA2-B0-34-620-121-D
 Enlarge
Carling Technologies Circuit Breakers 20 A TWO POLE
Page 2,038

Data Sheet
34
In Stock
1: $75.48
10: $53.47
25: $49.38
50: $44.03
100: $43.45



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 277 V 80 V 2 Pole Handle Series Trip (Current) C Series - 40 C to + 85 C Not Illuminated
Carling Technologies EA2-B0-26-620-32E-HB
 Enlarge
Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 2 Pole, Blk Act, 20A
Page 2,038

Data Sheet
49
In Stock
1: $77.49
5: $52.24
10: $44.75
25: $41.77



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 600 V 125 V 2 Pole Handle Series Trip (Current) E Series - 40 C to + 85 C Not Illuminated
Carling Technologies EA2-B0-26-450-32E-HB
 Enlarge
Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 2 Pole, Blk Act, 5A
Page 2,038

Data Sheet
105
In Stock
1: $77.49
5: $52.23
10: $44.76
25: $41.78



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 5 A 600 V 125 V 2 Pole Handle Series Trip (Current) E Series - 40 C to + 85 C Not Illuminated
Compare up to 20 parts.
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