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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 7,499 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 W33-S4B1Q-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 2poles 5Amps Rocker Therm Circuit Brker
Data Sheet 77
In Stock
1: $23.08
5: $22.23
10: $21.12
25: $20.19
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 Illuminated
TE Connectivity / P&B W31-X2M1G-35
 Enlarge
TE Connectivity / P&B Circuit Breakers 35A TOGGLE ACTUATOR
Page 2,131

Data Sheet
40
In Stock
1: $29.52
10: $27.54
25: $25.82
50: $23.36
100: $18.45



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 35 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W33-T4B1Q-5
 Enlarge
TE Connectivity / P&B Circuit Breakers 5A 2-P Illum Amber P1 & P2 Trip QC
Page 2,941

Data Sheet
49
In Stock
1: $29.66
10: $27.67
25: $25.93
50: $23.48
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 5 A 250 V 50 V 2 Pole Rocker Series Trip Overload Sensing W33 Illuminated
TE Connectivity / P&B 3-1393248-3
 Enlarge
TE Connectivity / P&B Circuit Breakers W33-T1N1Q-15=W33
Data Sheet 60
In Stock
1: $34.81
10: $27.85
50: $26.40
100: $25.09



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 W23-X1A1G-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1A PUSH/PULL ACT.
Page 2,131

Data Sheet
31
In Stock
1: $35.69
10: $33.31
25: $31.23
50: $28.26
100: $22.31



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 1 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-2
 Enlarge
TE Connectivity / P&B Circuit Breakers 2A TOGGLE ACTUATOR
Page 2,131

Data Sheet
43
In Stock
1: $45.30
10: $42.52
25: $39.63
50: $35.85
100: $28.31



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 2 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W92-X112-50
 Enlarge
TE Connectivity / P&B Circuit Breakers 50A 2 POLE 2 TOGGLE
Page 2,132

Data Sheet
25
In Stock
More Info Available
1: $46.59
10: $41.85
25: $39.26
50: $35.94
100: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 50 A 277 V 2 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W92-X112-15
 Enlarge
TE Connectivity / P&B Circuit Breakers 15A 2 POLE 2 TOGGLE
Page 2,132

Data Sheet
24
In Stock
1: $48.33
10: $42.85
25: $39.26
50: $35.94
100: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 15 A 277 V 2 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W92-X112-10
 Enlarge
TE Connectivity / P&B Circuit Breakers 2pole 10Amp Toggle Mag circuit breaker
Data Sheet 30
In Stock
1: $48.34
5: $45.63
10: $41.85
25: $39.26
50: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 10 A 277 V 2 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity W92-X112-40
 Enlarge
TE Connectivity Circuit Breakers CIRCUIT BREAKER SWITCH 40A BLK
Data Sheet 20
In Stock
1: $50.80
5: $48.64
10: $46.77
25: $43.13
50: View



Min.: 1
Mult.: 1


Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 40 A 277 V 2 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W92-X112-1
 Enlarge
TE Connectivity / P&B Circuit Breakers 1A 2 POLE 2 TOGGLE
Page 2,132

Data Sheet
35
In Stock
1: $51.53
10: $46.22
25: $45.09
50: $40.78
100: $40.52



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 1 A 277 V 2 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity / P&B W92-X112-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25AMP 277VAC TOGGLE 2 POLE
Data Sheet 31
In Stock
1: $73.53
5: $66.84
10: $60.78
25: $54.69



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 25 A 277 V 2 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
Phoenix Contact 0914138
 Enlarge
Phoenix Contact Circuit Breakers TMC 1 F1 100 5.0A
Data Sheet 22
In Stock
1: $78.42
10: $71.57
25: $69.69
50: $67.40
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 5 A 250 V 65 V 1 Pole Toggle - 30 C to + 60 C Not Illuminated
TE Connectivity / P&B W93-X112-50
 Enlarge
TE Connectivity / P&B Circuit Breakers 50A 3 POLE TOGGLE
Page 2,132

Data Sheet
13
In Stock
1: $94.90
10: $88.57
25: $83.03
50: $75.13
100: $68.46



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 50 A 277 V 3 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
TE Connectivity Circuit Breakers 16A Push to Reset 6.35 Strt Quick Conn
Data Sheet 200
In Stock
100: $4.19
200: $3.60



Min.: 100
Mult.: 100
Thermal Circuit Breakers Supplementary Protector 16 A 250 V 50 V 1 Pole Pushbutton Series Trip W58 - 20 C to + 60 C Not Illuminated
Schurter 4404.0010
 Enlarge
Schurter Circuit Breakers 15A 0.25" QC Snap-in front
Page 2,940

Data Sheet
544
In Stock
1: $1.67
10: $1.59
25: $1.48
50: $1.39
100: $1.30



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 15 A 240 V 48 V 1 Pole Pushbutton T9 - 5 C to + 60 C Not Illuminated
Schurter 4404.0024
 Enlarge
Schurter Circuit Breakers 16A 0.25" QC Threaded neck
Page 2,940

Data Sheet
690
In Stock
1: $1.67
10: $1.59
25: $1.48
50: $1.39
100: $1.29



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 16 A 240 V 48 V 1 Pole Pushbutton T9 - 5 C to + 60 C Not Illuminated
Qualtek QMB-203-11C3N-3BA Qualtek Circuit Breakers 20A FRT PNL PLASTIC .250 QC TAB
Data Sheet 795
In Stock
1: $2.05
50: $1.80
100: $1.64
250: $1.56



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 20 A 125 V to 250 V 32 V 1 Pole Pushbutton QMB Not Illuminated
Carling Technologies CTB-B-B-15 Carling Technologies Circuit Breakers 15 AMP 50VDC PNL MNT
Page 2,130

Data Sheet
856
In Stock
1: $2.18
10: $1.87
25: $1.72
50: $1.45



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 15 A 250 V 32 V 1 Pole Rocker CTB - 10 C to + 60 C Not Illuminated
Carling Technologies CMB-153-11C3N-B-A
 Enlarge
Carling Technologies Circuit Breakers 15 AMP PLASTIC BLK
Page 2,130

Data Sheet
798
In Stock
1: $2.55
10: $2.35
25: $2.20
50: $2.01
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 15 A 125 V to 250 V 32 V 1 Pole Pushbutton C - 10 C to + 60 C Not Illuminated
Schurter 4404.0102
 Enlarge
4404.0102

New Product
New Product


Schurter Circuit Breakers 1 pole 10A THT Term for PCB mounting
Page 2,134

Data Sheet
500
In Stock
1: $3.20
50: $2.94
100: $2.71
500: $2.15
1,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 10 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-824 - 5 C to + 60 C Not Illuminated
Schurter 4404.0099
 Enlarge
4404.0099

New Product
New Product


Schurter Circuit Breakers 1 pole 6A THT Term for PCB mounting
Page 2,134

Data Sheet
490
In Stock
1: $3.20
50: $2.94
100: $2.71
500: $2.15
1,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 6 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-821 - 5 C to + 60 C Not Illuminated
Schurter 4404.0098
 Enlarge
4404.0098

New Product
New Product


Schurter Circuit Breakers 1 pole 5A THT Term for PCB mounting
Page 2,134

Data Sheet
600
In Stock
1: $3.20
50: $2.94
100: $2.71
500: $2.15
1,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 5 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-820 - 5 C to + 60 C Not Illuminated
Schurter 4404.0105
 Enlarge
4404.0105

New Product
New Product


Schurter Circuit Breakers 1 pole 15A THT Term for PCB mounting
Page 2,134

Data Sheet
635
In Stock
1: $3.20
50: $2.94
100: $2.71
500: $2.15
1,000: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 15 A 240 V 32 V 1 Pole Pushbutton Trip Free T9-827 - 5 C to + 60 C Not Illuminated
Carling Technologies CMB-033-11C3N-B-A
 Enlarge
Carling Technologies Circuit Breakers 3 AMP PLASTIC BLK
Page 2,130

Data Sheet
346
In Stock
More Info Available
1: $3.44
10: $2.87
25: $2.73
50: $2.62
100: $2.35



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 3 A 125 V to 250 V 32 V 1 Pole Pushbutton C - 10 C to + 60 C Not Illuminated
Compare up to 20 parts.
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