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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 5-1423675-8
 Enlarge
TE Connectivity / P&B Circuit Breakers W57-XA7A15A10-20 CKTBKR THERM
Data Sheet 147
In Stock
1: $3.93
10: $3.14
50: $2.97
100: $2.83
250: $2.47



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 1423673-4
 Enlarge
TE Connectivity / P&B Circuit Breakers W51-A121B1-8=CKTBKRK THERM ROCK
Data Sheet 182
In Stock
1: $4.00
10: $3.19
50: $3.02
100: $2.87
250: $2.53



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 8 A 125 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W54-XB1A4A10-35
 Enlarge
TE Connectivity / P&B Circuit Breakers 35 Amps 1Pole Therm Circuit Brker
Data Sheet 196
In Stock
1: $4.55
25: $3.98
50: $3.59
100: $2.84
200: $2.55



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 35 A 250 V 1 Pole Pushbutton Series trip W54 0 C to + 60 C Not Illuminated
TE Connectivity Circuit Breakers W54-XA1C99C10-40 CKTBKR THERM
Data Sheet 60
In Stock
1: $4.79
10: $3.83
50: $3.63
100: $3.45



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 40 A 250 V 1 Pole Pushbutton Series trip W54 0 C to + 60 C Not Illuminated
TE Connectivity / P&B W28-XT1A-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1POLE 1Amps Therm Circuit Brker
Data Sheet 80
In Stock
1: $5.19
25: $4.66
50: $4.30
100: $3.47



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 1 A 250 V 32 V 1 Pole Pushbutton Series trip W28 Not Illuminated
TE Connectivity / P&B W58-XB1A4A-12
 Enlarge
TE Connectivity / P&B Circuit Breakers 12A PUSH TO RESET QC
Page 2,041

Data Sheet
167
In Stock
1: $5.19
10: $4.84
25: $4.54
50: $4.11
100: $3.24



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 12 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B 1423695-4
 Enlarge
TE Connectivity / P&B Circuit Breakers W58-XC1A4A-16=CKTBKR THERM PB
Data Sheet 81
In Stock
1: $5.22
10: $4.56
50: $4.13
100: $3.26



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 16 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XB1A4A-7
 Enlarge
TE Connectivity / P&B Circuit Breakers 7A PUSH TO RESET QC
Page 2,041

Data Sheet
166
In Stock
1: $5.30
10: $4.94
25: $4.64
50: $4.19
100: $3.30



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 7 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-7
 Enlarge
TE Connectivity / P&B Circuit Breakers 7A PUSH TO RESET ST
Page 2,041

Data Sheet
89
In Stock
1: $5.81
10: $5.55
25: $5.17
50: $4.68
100: $3.69



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 7 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W58-XC4C12A-3
 Enlarge
TE Connectivity / P&B Circuit Breakers 3A PUSH TO RESET ST
Page 2,041

Data Sheet
29
In Stock
More Info Available
1: $7.18
10: $6.59
25: $6.03
50: $5.59
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-XC4C12A-2
 Enlarge
TE Connectivity / P&B Circuit Breakers 2A PUSH TO RESET ST
Page 2,041

Data Sheet
109
In Stock
1: $7.28
10: $6.84
25: $6.37
50: $5.76
100: $4.54



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
TE Connectivity / P&B W58-XC4C12A-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1A PUSH TO RESET ST
Page 2,041

Data Sheet
46
In Stock
1: $7.28
10: $6.84
25: $6.37
50: $5.76
100: $4.54



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-3.5 TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL 3.5A OUT
Data Sheet 113
In Stock
1: $7.43
25: $6.49
50: $5.88
100: $4.64



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 3.5 A 250 V 50 V 1 Pole Pushbutton Series trip W58 - 20 C to + 60 C Not Illuminated
Phoenix Contact 0700005
 Enlarge
Phoenix Contact Circuit Breakers TCP 5/DC32V
Data Sheet 41
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 5 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0700040
 Enlarge
Phoenix Contact Circuit Breakers TCP 40/DC32V
Data Sheet 50
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 40 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0700020
 Enlarge
Phoenix Contact Circuit Breakers TCP 20/DC32V
Data Sheet 48
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 20 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0700007
 Enlarge
Phoenix Contact Circuit Breakers TCP 7.5/DC32V
Data Sheet 55
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 7.5 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0700025
 Enlarge
Phoenix Contact Circuit Breakers TCP 25/DC32V
Data Sheet 49
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 25 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0700015
 Enlarge
Phoenix Contact Circuit Breakers TCP 15/DC32V
Data Sheet 31
In Stock
More Info Available
1: $14.06
10: $13.68
25: $13.33
50: $12.79
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermal Device 15 A 32 V 1 Pole Pushbutton TCP - 30 C to + 60 C Not Illuminated
Phoenix Contact 0916611
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 12A
Page 2,042

Data Sheet
40
In Stock
1: $14.77
10: $13.85
25: $13.21
50: $12.74
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 12 A 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
Phoenix Contact 0712123
 Enlarge
Phoenix Contact Circuit Breakers TCP 0.25 AMPS
Data Sheet 33
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 250 mA 250 V 65 V 1 Pole TCP - 20 C to + 60 C Not Illuminated
Phoenix Contact 0916606
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 4A
Page 2,042

Data Sheet
33
In Stock
1: $16.74
10: $15.70
25: $14.97
50: $14.44
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 4 A 240 V 28 V 1 Pole Pushbutton UT 6- TMC M - 30 C to + 60 C Not Illuminated
Phoenix Contact 0916608
 Enlarge
Phoenix Contact Circuit Breakers UT 6-TMC M 6A
Page 2,042

Data Sheet
18
In Stock
1: $16.74
10: $15.70
25: $14.97
50: $14.44
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 6 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-20
 Enlarge
TE Connectivity / P&B Circuit Breakers 20A 2-P Black Rocker P1 Switch P2 Trip QC
Page 2,803

Data Sheet
10
In Stock
1: $17.75
10: $17.02
25: $16.34
50: $14.78
100: $12.90



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 W33-S4B1Q-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 10A 2-P Illum Amber P1 Switch P2 Trip QC
Page 2,803

Data Sheet
38
In Stock
1: $18.22
10: $17.97
25: $17.71
50: $17.23
100: 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
Compare up to 20 parts.
7497
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