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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 7,497 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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Schurter 4404.0099
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4404.0099

New Product
New Product


Schurter Circuit Breakers 1 pole 6A THT Term for PCB mounting
Page 2,043

Data Sheet
490
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 6 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-821 - 5 C to + 60 C Not Illuminated
Schurter 4404.0098
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4404.0098

New Product
New Product


Schurter Circuit Breakers 1 pole 5A THT Term for PCB mounting
Page 2,043

Data Sheet
597
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 5 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-820 - 5 C to + 60 C Not Illuminated
Schurter 4404.0102
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4404.0102

New Product
New Product


Schurter Circuit Breakers 1 pole 10A THT Term for PCB mounting
Page 2,043

Data Sheet
495
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 10 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-824 - 5 C to + 60 C Not Illuminated
Schurter 4404.0103
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4404.0103

New Product
New Product


Schurter Circuit Breakers 1 pole 12A THT Term for PCB mounting
Page 2,043

Data Sheet
452
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 12 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-825 - 5 C to + 60 C Not Illuminated
Schurter 4404.0105
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4404.0105

New Product
New Product


Schurter Circuit Breakers 1 pole 15A THT Term for PCB mounting
Page 2,043

Data Sheet
635
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 15 A 240 V 32 V 1 Pole Pushbutton Trip Free T9-827 - 5 C to + 60 C Not Illuminated
Schurter 4404.0096
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4404.0096

New Product
New Product


Schurter Circuit Breakers 1 pole 3A THT Term for PCB mounting
Page 2,043

Data Sheet
499
In Stock
1: $3.89
50: $3.57
100: $3.29
500: $2.61
1,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 3 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-818 - 5 C to + 60 C Not Illuminated
Carling Technologies CLB-403-11B3A-B-A
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Carling Technologies Circuit Breakers 40 AMP METAL BLK
Page 2,039

Data Sheet
355
In Stock
1: $4.01
10: $3.30
25: $3.23
50: $3.00



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 40 A 125 V to 250 V 32 V 1 Pole Pushbutton CLB - 10 C to + 60 C Not Illuminated
Schurter 4400.0008
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Schurter Circuit Breakers .250 QC SP THERML 1A
Page 2,804

Data Sheet
140
In Stock
1: $7.41
10: $6.59
25: $5.93
50: $5.59
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 1 A 240 V 48 V 1 Pole Pushbutton ON/OFF T11 - 5 C to + 60 C Not Illuminated
Schurter 4430.1353
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Schurter Circuit Breakers TA45 BLK ROCKER 5.0A
Page 2,043

Data Sheet
67
In Stock
1: $17.86
10: $17.00
25: $15.99
50: $15.15
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 5 A 240 V 60 V 1 Pole Rocker ON/OFF TA45 - 10 C to + 55 C
Carling Technologies EA1-B0-26-450-32E-FB
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Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 1 Pole, Blk Act, 5A
Page 2,038

Data Sheet
63
In Stock
1: $18.02
5: $17.45
10: $17.01
25: $16.60



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 5 A 600 V 125 V 1 Pole Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Carling Technologies Circuit Breakers
Data Sheet 45
In Stock
More Info Available
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
Schurter 4430.2306
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Schurter Circuit Breakers TA45 ORANGE RCKR 20A
Page 2,043

Data Sheet
37
In Stock
1: $27.69
10: $24.61
25: $22.14
50: $20.90



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 20 A 240 V 60 V 2 Pole Rocker ON/OFF TA45 - 10 C to + 55 C
Carling Technologies MS1-B-10-430-2-1CB-A-A
 Enlarge
Carling Technologies Circuit Breakers Sld Toggle Cir Brkr
Data Sheet 25
In Stock
1: $59.49
10: $54.08
25: $49.58
50: $45.75



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector 3 A 50 V 1 Pole Toggle Series Trip (Current) MS Series - 40 C to + 85 C Not Illuminated
Carling Technologies BA2-B0-34-450-121-D
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Carling Technologies Circuit Breakers 5 A TWO POLE
Page 2,038

Data Sheet
29
In Stock
1: $59.93
10: $41.22
25: $36.65
50: $33.20
100: $32.20



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector 5 A 277 V 80 V 2 Pole Handle Series Trip (Current) B - 40 C to + 85 C Not Illuminated
Carling Technologies Circuit Breakers Circuit Breaker 5pole, DC
Data Sheet 8
In Stock
1: $117.98



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 277 V 80 V 5 Pole Handle Series Trip (Current) A Series - 40 C to + 85 C Not Illuminated
Carling Technologies EA3-B0-66-490-11A-GB Carling Technologies Circuit Breakers CIRCUIT BREAKER 3 POLE 20A
Data Sheet 10
In Stock
1: $127.88
5: $115.50
10: $109.61
20: $104.63
50: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 9 A 600 V 125 V 3 Pole Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Altech 2BU16R
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Altech Circuit Breakers 16A B Characteristic UL 1077 2 POLE
Page 2,802

Data Sheet
66
In Stock
1: $23.08
10: $20.95
50: $19.63
100: $19.24
250: View



Min.: 1
Mult.: 1
Circuit Protection Devices B-Trip 16 A 277 V 2 Pole Handle Supplementary Protectors R - 25 C to + 60 C Not Illuminated
TE Connectivity / P&B W33-S2N1Q-20
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 50
In Stock
1: $19.56
25: $17.58
50: $16.21
100: $13.49
200: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 20 A 250 V 50 V 2 Pole Rocker Series Trip Overload Sensing W33 Not Illuminated
TE Connectivity / P&B W67-X2Q52-30
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TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 30A WH
Data Sheet 41
In Stock
1: $21.95
5: $19.72
10: $18.21
25: $16.87



Min.: 1
Mult.: 1


Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 65 V 1 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W67-X2Q13-1
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 1A WHITE
Data Sheet 45
In Stock
1: $22.84
5: $20.52
10: $18.92
25: $15.75
50: View



Min.: 1
Mult.: 1


Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 1 A 277 V 1 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
TE Connectivity Circuit Breakers CKTBKR THERM ROCK QC.250
Data Sheet 44
In Stock
1: $26.13
25: $25.15
50: $24.04
100: $23.19



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 12 A 250 V 50 V 2 Pole Rocker Series Trip Overload Sensing W33 Illuminated
TE Connectivity / P&B W33-T2N1Q-5
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 42
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 5 A 250 V 50 V 2 Pole Rocker Series Trip Overload Sensing W33 Not Illuminated
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL 10A AMB
Data Sheet 40
In Stock
1: $31.73
5: $28.51
10: $26.29
25: $21.88
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 Illuminated
TE Connectivity / P&B W68-X2Q12-7
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 7A WHITE
Data Sheet 22
In Stock
1: $50.53
5: $47.62
10: $43.93
25: $36.55
50: $35.15



Min.: 1
Mult.: 1


Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 7 A 277 V 2 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
Schneider Electric GV2ME14
 Enlarge
Schneider Electric Circuit Breakers MAN-START 600VAC 10AMP IEC
Data Sheet 7
In Stock
1: $161.83
5: $149.01
10: $146.26
25: $142.18
50: View



Min.: 1
Mult.: 1


Thermal Magnetic Circuit Breakers Thermomagnetic 10 A 690 V 3 Pole Pushbutton Motor Protection - 20 C to + 60 C
Compare up to 20 parts.
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