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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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TE Connectivity / P&B W54-XB1A4A10-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A PUSH TO RESET
Page 2,040

Data Sheet
525
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
TE Connectivity / P&B W54-XB1A4A10-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25A PUSH TO RESET
Page 2,040

Data Sheet
342
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
TE Connectivity W58-X1101-2.5 TE Connectivity Circuit Breakers
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 W54-XB1A4A10-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A PUSH TO RESET
Page 2,040

Data Sheet
359
In Stock
1: $3.26
10: $2.99
25: $2.85
50: $2.58
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 250 V 1 Pole Pushbutton Series trip W54 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XT1A-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A PUSH TO RESET
Data Sheet 620
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
472
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
441
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 580
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-A122B1-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A ROCKR ACT RED ILL
Page 2,041

Data Sheet
322
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 W51-A121B1-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A ROCKR ACT RED ILL
Page 2,041

Data Sheet
461
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 W58-XB1A4A-6
 Enlarge
TE Connectivity / P&B Circuit Breakers 6A PUSH TO RESET QC
Page 2,041

Data Sheet
223
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
280
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
219
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
216
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
TE Connectivity / P&B W28-XQ1A-0.75
 Enlarge
TE Connectivity / P&B Circuit Breakers 0.75A PUSH TO RESET
Data Sheet 314
In Stock
1: $6.17
25: $5.40
50: $4.89
100: $3.86
200: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 750 mA 250 V 32 V 1 Pole Pushbutton Series trip W28 Not Illuminated
TE Connectivity / P&B W58-XB1A4A-4
 Enlarge
TE Connectivity / P&B Circuit Breakers 4A PUSH TO RESET QC
Page 2,041

Data Sheet
169
In Stock
1: $7.14
10: $6.49
25: $6.05
50: $5.59
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 4 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
Phoenix Contact 0700010
 Enlarge
Phoenix Contact Circuit Breakers TCP 10/DC32V
Data Sheet 106
In Stock
1: $14.06
10: $13.68
25: $13.33
50: $12.79
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermal Device 10 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0916612
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 15A
Page 2,042

Data Sheet
75
In Stock
1: $14.77
10: $13.85
25: $13.21
50: $12.74
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 15 A 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
Phoenix Contact 0712152
 Enlarge
Phoenix Contact Circuit Breakers TCP 0.50 AMPS
Page 2,042

Data Sheet
76
In Stock
More Info Available
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 500 mA 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
Phoenix Contact 0916604
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 1A
Page 2,042

Data Sheet
64
In Stock
1: $16.74
10: $15.70
25: $14.97
50: $14.44
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 1 A 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
TE Connectivity / P&B W33-S1N1Q-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A 2-P Black Rocker P1 Switch P2 Trip QC
Page 2,803

Data Sheet
58
In Stock
1: $17.40
10: $16.68
25: $16.02
50: $14.49
100: $12.65



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 W33-S1N1Q-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A 2-P Black Rocker P1 Switch P2 Trip QC
Page 2,803

Data Sheet
68
In Stock
1: $18.67
5: $17.98
10: $17.00
25: $16.29
50: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 250 V 50 V 2 Pole Rocker Series Trip Overload Sensing W33 Not Illuminated
TE Connectivity / P&B W67-X2Q12-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A 1 POLE TOGGLE
Page 2,041

Data Sheet
48
In Stock
1: $20.42
10: $18.06
25: $17.37
50: $15.86
100: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 15 A 277 V 1 Pole Toggle Series trip W6 - 40 C to + 85 C Not Illuminated
Compare up to 20 parts.
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