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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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Altech 1BU3R
 Enlarge
Altech Circuit Breakers 3A B Characteristic UL 1077 1 POLE
Page 2,802

Data Sheet
357
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 2,802

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
Altech RP2203 Altech Circuit Breakers 2POLE UNDELAY TRIP 25A 30mA 2MOD RCCB
Data Sheet 46
In Stock
1: $98.64
10: $81.54
50: $76.45
100: $74.58



Min.: 1
Mult.: 1
Earth Leakage Circuit Breakers Earth Leakage / Ground Fault 25 A 230 V 2 Pole Handle RP - 25 C to + 40 C Not Illuminated
TE Connectivity / P&B W33-T2N1Q-10
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 74
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 185080F-01-1
 Enlarge
Bussmann / Eaton Circuit Breakers 80-AMP BREAKER
Data Sheet 55
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 820
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 2,040

Data Sheet
802
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 2,040

Data Sheet
922
In Stock
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 W57-XB7A4A10-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A PUSH TO RESET
Page 2,040

Data Sheet
653
In Stock
1: $2.41
10: $2.26
25: $2.10
50: $1.91
100: $1.48



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 W58-X1101-2.5 TE Connectivity Circuit Breakers W58-X1101-2.5=CKTBKR,THERM,PB,QC.250,BUS
Data Sheet 396
In Stock
1: $3.20
10: $2.91
100: $2.66
500: $2.46
1,000: $2.28



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 2.5 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XT1A-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 1pole 5Amp Therm Circuit Brker
Data Sheet 518
In Stock
1: $3.28
25: $2.86
50: $2.58
100: $2.05
200: $1.84



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 5 A 250 V 32 V 1 Pole Pushbutton Series trip W28 Not Illuminated
TE Connectivity / P&B W28-XT1A-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A PUSH TO RESET
Data Sheet 618
In Stock
1: $3.28
10: $3.06
25: $2.86
50: $2.59
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 250 V 32 V 1 Pole Pushbutton Series trip W28 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
392
In Stock
More Info Available
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 W51-A152A1-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A RCKR ACT NON-ILL
Page 2,041

Data Sheet
440
In Stock
1: $3.41
10: $3.22
25: $3.02
50: $2.73
100: $2.12



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 Not Illuminated
TE Connectivity / P&B W51-A161A1-15
 Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL 15A RED
Data Sheet 478
In Stock
1: $3.46
10: $3.22
25: $3.02
50: $2.73
100: $2.15



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 15 A 125 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W51-A121B1-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A RCKR ACT RED ILL
Page 2,041

Data Sheet
452
In Stock
1: $3.48
10: $3.25
25: $3.03
50: $2.75
100: $2.15



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 10 A 125 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W51-A121B1-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A ROCKR ACT RED ILL
Page 2,041

Data Sheet
446
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 5 A 125 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W51-A122B1-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A ROCKR ACT RED ILL
Page 2,041

Data Sheet
399
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 5 A 250 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W58-XB1A4A-6
 Enlarge
TE Connectivity / P&B Circuit Breakers 6A PUSH TO RESET QC
Page 2,041

Data Sheet
220
In Stock
1: $5.12
10: $4.66
25: $4.27
50: $3.94
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 6 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A PUSH TO RESET ST
Page 2,041

Data Sheet
277
In Stock
1: $5.20
10: $4.56
25: $4.28
50: $3.87
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 10 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30A PUSH TO RESET ST
Page 2,041

Data Sheet
190
In Stock
1: $5.63
10: $5.25
25: $4.93
50: $4.45
100: $3.55



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 30 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25A PUSH TO RESET ST
Page 2,041

Data Sheet
271
In Stock
1: $5.92
10: $5.79
25: $5.30
50: $4.79
100: $3.79



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 25 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A PUSH TO RESET ST
Page 2,041

Data Sheet
211
In Stock
1: $6.06
10: $5.79
25: $5.30
50: $4.79
100: $3.79



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 5 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
Compare up to 20 parts.
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