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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 7,635 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 W68-X2Q12-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30AMP 277VAC TOGGLE 2 POLE
Data Sheet 54
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 W51-A121B1-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A RCKR ACT RED ILL
Page 2,041

Data Sheet
1,587
In Stock
1: $3.54
10: $3.31
25: $3.09
50: $2.80
100: $2.21



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 20 A 125 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W51-A122B1-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A RCKR ACT RED ILL
Page 2,041

Data Sheet
1,817
In Stock
1: $3.76
10: $3.50
25: $3.27
50: $2.96
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 250 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W91-X112-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A 1 POLE 1 TOGGLE
Page 2,041

Data Sheet
108
In Stock
1: $19.71
10: $16.41
25: $15.72
50: $14.55
100: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 277 V 1 Pole Toggle Series trip W9 - 40 C to + 85 C Not Illuminated
Phoenix Contact 0916610
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 10A
Page 2,042

Data Sheet
163
In Stock
1: $14.77
10: $13.85
25: $13.21
50: $12.74
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 10 A 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
TE Connectivity / P&B W23-X1A1G-7.50
 Enlarge
TE Connectivity / P&B Circuit Breakers 7.5A PUSH/PULL ACT.
Page 2,040

Data Sheet
116
In Stock
1: $25.17
10: $24.52
25: $22.02
50: $19.93
100: $17.07



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 7.5 A 240 V 50 V 1 Pole Pushbutton Series trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W54-XB1A4A10-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A PUSH TO RESET
Page 2,040

Data Sheet
995
In Stock
1: $2.99
10: $2.78
25: $2.60
50: $2.36
100: $1.83



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 5 A 250 V 1 Pole Pushbutton Series trip W54 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W54-XB1A4A10-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30A PUSH TO RESET
Page 2,040

Data Sheet
1,032
In Stock
1: $3.32
10: $3.03
25: $2.84
50: $2.59
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 30 A 250 V 1 Pole Pushbutton Series trip W54 0 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 W31-X2M1G-40
 Enlarge
TE Connectivity / P&B Circuit Breakers 40A TOGGLE ACTUATOR
Page 2,040

Data Sheet
83
In Stock
1: $31.31
10: $29.20
25: $27.37
50: $24.77
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 40 A 240 V 50 V 1 Pole Toggle Series trip W31 - 20 C to + 60 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
TE Connectivity / P&B W31-X2M1G-7.50
 Enlarge
TE Connectivity / P&B Circuit Breakers 7.5A TOGGLE ACTUATOR
Page 2,040

Data Sheet
177
In Stock
1: $29.52
10: $27.54
25: $25.82
50: $23.36
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 7.5 A 240 V 50 V 1 Pole Toggle Series trip W31 - 20 C to + 60 C Not Illuminated
Phoenix Contact 0712291
 Enlarge
Phoenix Contact Circuit Breakers TCP 8 AMPS
Data Sheet 397
In Stock
1: $15.29
10: $13.96
25: $13.59
50: $13.14
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermal Device Terminal Block 8 A 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25A TOGGLE ACTUATOR
Page 2,040

Data Sheet
97
In Stock
1: $30.10
10: $28.08
25: $26.33
50: $23.82
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 25 A 240 V 50 V 1 Pole Toggle Series trip W31 - 20 C to + 60 C Not Illuminated
Carling Technologies Circuit Breakers
Data Sheet 181
In Stock
1: $27.50
10: $25.38
50: $23.78
100: $20.94



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector 12 A 125 V, 250 V 80 V 2 Pole Rocker Series Trip (Current) M Series - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W91-X152-30
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 30A BLK
Data Sheet 93
In Stock
1: $24.57
5: $23.14
10: $21.35
25: $17.76
50: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 65 V 1 Pole Toggle Series trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W33-T2N1Q-10
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 72
In Stock
1: $27.67
5: $24.85
10: $22.93
25: $19.08
50: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 10 A 250 V 50 V 2 Pole Rocker Series Trip Overload Sensing W33 Not Illuminated
Schurter 4430.2305
 Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 15A
Page 2,043

Data Sheet
203
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
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
Schurter 4404.0005
 Enlarge
Schurter Circuit Breakers 12A 240V AC / 48V DC SNAP-IN MOUNT
Page 2,803

Data Sheet
1,883
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
TE Connectivity Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 1,200
In Stock
1: $2.55
25: $2.29
50: $2.12
100: $1.76
200: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 15 A 250 V 32 V 1 Pole Pushbutton Series trip W28 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 4430.2304
 Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 10A
Page 2,043

Data Sheet
186
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
Phoenix Contact 0903022
 Enlarge
Phoenix Contact Circuit Breakers EC-E1 0,5A 0.5A, N/O SIGNAL CNT
Data Sheet 42
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 0916603
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 0.5A
Page 2,042

Data Sheet
156
In Stock
1: $16.74
10: $15.70
25: $14.97
50: $14.44
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 500 mA 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
Compare up to 20 parts.
7635
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