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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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TE Connectivity / P&B W28-XQ1A-4
 Enlarge
TE Connectivity / P&B Circuit Breakers 4A PUSH TO RESET
Page 2,040

Data Sheet
2,525
In Stock
1: $3.12
10: $2.60
25: $2.45
50: $2.21
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 4 A 250 V 32 V 1 Pole Pushbutton Series trip W28 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W51-A122B1-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A RCKR ACT RED ILL
Page 2,041

Data Sheet
750
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 250 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers 5A ROCKR ACT NON-ILL
Page 2,041

Data Sheet
768
In Stock
1: $3.52
10: $3.27
25: $3.07
50: $2.79
100: View



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 Not Illuminated
TE Connectivity / P&B W51-A121B1-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A RCKR ACT RED ILL
Page 2,041

Data Sheet
1,596
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 20 A 125 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W51-A121B1-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A RCKR ACT RED ILL
Page 2,041

Data Sheet
618
In Stock
More Info Available
1: $3.70
10: $3.45
25: $3.23
50: $2.92
100: View



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 Illuminated
TE Connectivity / P&B W58-XB1A4A-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A PUSH TO RESET
Page 2,041

Data Sheet
2,159
In Stock
1: $4.78
10: $4.25
25: $3.87
50: $3.59
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 15 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XB1A4A-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A PUSH TO RESET
Page 2,041

Data Sheet
1,660
In Stock
1: $4.78
10: $4.25
25: $3.87
50: $3.59
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 20 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XB1A4A-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A PUSH TO RESET
Page 2,041

Data Sheet
586
In Stock
More Info Available
1: $4.78
10: $4.25
25: $3.87
50: $3.59
100: View



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 W58-XB1A4A-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A PUSH TO RESET
Page 2,041

Data Sheet
1,438
In Stock
1: $4.93
10: $4.77
25: $4.39
50: $3.65
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-XB1A4A-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25A PUSH TO RESET
Page 2,041

Data Sheet
728
In Stock
1: $4.93
10: $4.77
25: $4.39
50: $3.65
100: View



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-XB1A4A-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30A PUSH TO RESET
Page 2,041

Data Sheet
642
In Stock
1: $4.93
10: $4.77
25: $4.39
50: $3.65
100: View



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-XB1A4A-8
 Enlarge
TE Connectivity / P&B Circuit Breakers 8A PUSH TO RESET QC
Page 2,041

Data Sheet
631
In Stock
1: $5.03
10: $3.97
25: $3.76
50: $3.42
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 8 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A PUSH TO RESET ST
Page 2,041

Data Sheet
364
In Stock
1: $5.51
10: $5.17
25: $4.74
50: $4.37
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 20 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XQ1A-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1A PUSH TO RESET
Page 2,040

Data Sheet
1,268
In Stock
More Info Available
1: $5.56
10: $5.19
25: $4.82
50: $4.38
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 1 A 250 V 32 V 1 Pole Pushbutton Series trip W28 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XQ1A-0.50
 Enlarge
TE Connectivity / P&B Circuit Breakers 0.5A PUSH TO RESET
Page 2,040

Data Sheet
477
In Stock
1: $5.65
10: $5.26
25: $4.94
50: $4.47
100: $3.53



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 500 mA 250 V 32 V 1 Pole Pushbutton Series trip W28 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XQ1A-0.25
 Enlarge
TE Connectivity / P&B Circuit Breakers 0.25A PUSH TO RESET
Page 2,040

Data Sheet
657
In Stock
1: $5.65
10: $5.26
25: $4.94
50: $4.47
100: $3.53



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 250 mA 250 V 32 V 1 Pole Pushbutton Series trip W28 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XB1A4A-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1A PUSH TO RESET QC
Page 2,041

Data Sheet
1,020
In Stock
1: $6.87
10: $6.25
25: $5.89
50: $5.27
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 1 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XB1A4A-3
 Enlarge
TE Connectivity / P&B Circuit Breakers 3A PUSH TO RESET
Page 2,041

Data Sheet
362
In Stock
1: $6.87
10: $6.25
25: $5.89
50: $5.27
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 3 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XB1A4A-2
 Enlarge
TE Connectivity / P&B Circuit Breakers 2A PUSH TO RESET
Page 2,041

Data Sheet
441
In Stock
1: $6.87
10: $6.25
25: $5.89
50: $5.27
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 2 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
Phoenix Contact 0916610
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 10A
Page 2,042

Data Sheet
166
In Stock
1: $14.77
10: $13.85
25: $13.21
50: $12.74
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 10 A 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
Phoenix Contact 0712291
 Enlarge
Phoenix Contact Circuit Breakers TCP 8 AMPS
Data Sheet 293
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 8 A 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
Phoenix Contact 0712314
 Enlarge
Phoenix Contact Circuit Breakers TCP 10 AMPS
Page 2,042

Data Sheet
155
In Stock
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 10 A 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
Phoenix Contact 0712194
 Enlarge
Phoenix Contact Circuit Breakers TCP 1 AMPS
Page 2,042

Data Sheet
256
In Stock
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 1 A 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
Phoenix Contact 0712275
 Enlarge
Phoenix Contact Circuit Breakers TCP 6 AMPS
Page 2,042

Data Sheet
152
In Stock
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 6 A 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
Phoenix Contact 0712233
 Enlarge
Phoenix Contact Circuit Breakers TCP 3 AMPS
Page 2,042

Data Sheet
266
In Stock
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 3 A 250 V 65 V TCP - 20 C to + 60 C Not Illuminated
Compare up to 20 parts.
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