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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 7,577 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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Carling Technologies Circuit Breakers Circuit Breaker 5pole, DC
Data Sheet 7
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
 Enlarge
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 Series - 40 C to + 85 C Not Illuminated
Altech 2BU16R
 Enlarge
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
Altech 2DU50L Altech Circuit Breakers 50.0A Two Pole "D"
Page 2,037

Data Sheet
25
In Stock
1: $79.58
10: $69.93
50: $62.01
100: $32.50
250: $31.71



Min.: 1
Mult.: 1
Circuit Protection Devices D-Trip 50 A 250 VDC 2 Pole Handle Supplementary Protectors L - 25 C to + 60 C Not Illuminated
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL 2A BLK
Data Sheet 262
In Stock
1: $4.70
25: $4.21
50: $3.90
100: $3.27



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 2 A 250 V 32 V 1 Pole Pushbutton Series trip W28 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
 Enlarge
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 44
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
TE Connectivity / P&B W69-X2Q12-25
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH
Data Sheet 16
In Stock
1: $72.00
5: $64.68
10: $59.68
25: $49.69
50: View



Min.: 1
Mult.: 1


Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 25 A 277 V 3 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
Schneider Electric GV2ME10
 Enlarge
Schneider Electric Circuit Breakers MAN-START 600VAC 6.3AMP IEC
Data Sheet 6
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 6.3 A 690 V 3 Pole Pushbutton Motor Protection - 20 C to + 60 C
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
TE Connectivity W57-XJ2A22B10-10M
 Enlarge
TE Connectivity Circuit Breakers W57-XJ2A22B10-10M
Data Sheet 158
In Stock
1: $1.70
10: $1.62
25: $1.48
50: $1.34
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-XB7A4A10-8
 Enlarge
TE Connectivity / P&B Circuit Breakers CKTBKR, THERM,PB
Data Sheet 229
In Stock
1: $1.76
25: $1.58
50: $1.45
100: $1.25



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 8 A 250 V 1 Pole Pushbutton Series trip W57 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W57-XB1A4A10-5
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER QC.250 TERML 5A
Data Sheet 175
In Stock
1: $2.19
25: $1.95
50: $1.80
100: $1.51
200: $1.50



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-9
 Enlarge
TE Connectivity / P&B Circuit Breakers 1POLE 9Amps Therm Circuit Brker
Data Sheet 130
In Stock
1: $2.52
25: $2.26
50: $2.09
100: $1.84



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 9 A 250 V 32 V 1 Pole Pushbutton Series trip W28 Not Illuminated
TE Connectivity / P&B W28-XT1A-12
 Enlarge
TE Connectivity / P&B Circuit Breakers 1POLE 12Amps Therm Circuit Brker
Data Sheet 94
In Stock
1: $2.57
25: $2.30
50: $2.13
100: $2.06



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 12 A 250 V 32 V 1 Pole Pushbutton Series trip W28 Not Illuminated
TE Connectivity W57-XJ2A7B10-5M
 Enlarge
TE Connectivity Circuit Breakers W57-XJ2A7B10-5M
Data Sheet 202
In Stock
1: $2.61
10: $2.50
25: $2.33
50: $2.21
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 Circuit Breakers 10A PUSH TO RESET
Data Sheet 209
In Stock
1: $2.78
10: $2.58
25: $2.43
50: $2.20
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 W28-XT1A-3
 Enlarge
TE Connectivity / P&B Circuit Breakers W28-XT1A-3
Data Sheet 324
In Stock
1: $2.87
25: $2.51
50: $2.38
100: $1.84



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 3 A 250 V 32 V 1 Pole Pushbutton Series trip W28 Not Illuminated
TE Connectivity / P&B W54-XB1A4A10-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A PUSH TO RESET
Page 2,040

Data Sheet
150
In Stock
1: $2.95
10: $2.74
25: $2.57
50: $2.33
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 10 A 250 V 1 Pole Pushbutton Series trip W54 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W54-XB1A4A10-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A PUSH TO RESET
Page 2,040

Data Sheet
272
In Stock
More Info Available
1: $2.99
10: $2.78
25: $2.60
50: $2.36
100: $1.83



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 20 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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