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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 7,499 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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Phoenix Contact 0903022
 Enlarge
Phoenix Contact Circuit Breakers EC-E1 0,5A 0.5A, N/O SIGNAL CNT
Data Sheet 72
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
Schurter 4404.0004
 Enlarge
Schurter Circuit Breakers 10A 240V AC / 48V DC SNAP-IN MOUNT
Page 2,940

Data Sheet
1,031
In Stock
1: $1.87
10: $1.78
25: $1.66
50: $1.56
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 10 A 240 V 48 V 1 Pole Pushbutton T9 - 5 C to + 60 C Not Illuminated
Schurter 4404.0005
 Enlarge
Schurter Circuit Breakers 12A 240V AC / 48V DC SNAP-IN MOUNT
Page 2,940

Data Sheet
1,520
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 2,130

Data Sheet
1,544
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 TS-709-5H
 Enlarge
Schurter Circuit Breakers 5A Thermal Reset 1-pole thread w/ nut
Page 2,941

Data Sheet
660
In Stock
1: $3.06
10: $2.73
25: $2.45
50: $2.32
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 5 A 125 V, 250 V 32 V 1 Pole Pushbutton TS-709 - 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 2,134

Data Sheet
1,679
In Stock
More Info Available
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
Schurter 4430.2078
 Enlarge
Schurter Circuit Breakers TA45 BLK ROCKER 10A
Page 2,134

Data Sheet
367
In Stock
More Info Available
1: $17.84
10: $15.86
25: $15.23
50: $14.47



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
Schurter 4430.1089
 Enlarge
Schurter Circuit Breakers TA45 BLK ROCKER 15A
Page 2,134

Data Sheet
197
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 4430.2305
 Enlarge
Schurter Circuit Breakers TA45 ORANGE RCKR 15A
Page 2,134

Data Sheet
224
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 2,134

Data Sheet
150
In Stock
More Info Available
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 2,129

Data Sheet
44
In Stock
More Info Available
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 - 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 2,129

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 - 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 2,129

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 - 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 2,129

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 - 40 C to + 85 C Not Illuminated
Altech 1BU3R
 Enlarge
Altech Circuit Breakers 3A B Characteristic UL 1077 1 POLE
Page 2,938

Data Sheet
577
In Stock
1: $12.00
10: $10.23
50: $10.19
100: $9.98
250: View



Min.: 1
Mult.: 1
Circuit Protection Devices B-Trip 3 A 277 V 1 Pole Handle Supplementary Protectors R 0 C to + 40 C Not Illuminated
Altech 3DU6R
 Enlarge
Altech Circuit Breakers 6A D Characteristic UL 1077 3 POLE
Page 2,938

Data Sheet
179
In Stock
1: $34.62
10: $31.41
50: $29.48
100: $28.89
250: View



Min.: 1
Mult.: 1
Circuit Protection Devices D-Trip 6 A 277 V 3 Pole Handle Supplementary Protectors R - 25 C to + 60 C Not Illuminated
TE Connectivity / P&B W33-T2N1Q-10
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 75
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
Bussmann / Eaton Circuit Breakers 80-AMP BREAKER
Data Sheet 61
In Stock
1: $48.48
10: $46.28
100: $44.08
250: $41.87
500: View



Min.: 1
Mult.: 1
No

Thermal Circuit Breakers High Amp 80 A 30 V 1 Pole 18X Hi-Amp - 32 C to + 82 C Not Illuminated
Schneider Electric GV2ME16
 Enlarge
Schneider Electric Circuit Breakers MAN-START 600VAC 14AMP IEC
Data Sheet 10
In Stock
1: $201.39
5: $185.57
10: $182.02
25: $177.06
50: View



Min.: 1
Mult.: 1


Thermal Magnetic Circuit Breakers Circuit Breakers 14 A 690 V 3 Pole Pushbutton Motor Protection - 20 C to + 60 C
Schneider Electric GV3ME80
 Enlarge
Schneider Electric Circuit Breakers MAN-START 600VAC 80AMP IEC
Data Sheet 3
In Stock
1: $609.02
5: $588.85
10: $568.68
25: View



Min.: 1
Mult.: 1


Thermal Magnetic Circuit Breakers Circuit Breakers 80 A 690 V 3 Pole Pushbutton Motor Protection - 20 C to + 60 C
TE Connectivity W57-XJ2A22B10-20M
 Enlarge
TE Connectivity Circuit Breakers W57-XJ2A22B10-20M
Data Sheet 823
In Stock
1: $1.58
100: $1.44
500: $1.31
1,000: $1.22
2,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 20 A 250 V 1 Pole Pushbutton Series Trip W57 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W57-XB7A4A10-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A PUSH TO RESET
Page 2,131

Data Sheet
735
In Stock
More Info Available
1: $1.96
10: $1.88
25: $1.59
50: $1.43
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 10 A 250 V 1 Pole Pushbutton Series Trip W57 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W57-XB7A4A10-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A PUSH TO RESET
Page 2,131

Data Sheet
1,085
In Stock
More Info Available
1: $2.12
10: $1.95
25: $1.85
50: $1.67
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 5 A 250 V 1 Pole Pushbutton Series Trip W57 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XQ1A-16
 Enlarge
TE Connectivity / P&B Circuit Breakers W28-XQ1A-16
Data Sheet 371
In Stock
1: $3.00
25: $2.72
50: $2.46
100: $2.24
200: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 16 A 250 V 32 V 1 Pole Pushbutton Series Trip W28 Not Illuminated
TE Connectivity / P&B W54-XB1A4A10-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25A PUSH TO RESET
Page 2,131

Data Sheet
369
In Stock
1: $3.10
10: $3.00
25: $2.81
50: $2.58
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 25 A 250 V 1 Pole Pushbutton Series Trip W54 0 C to + 60 C Not Illuminated
Compare up to 20 parts.
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