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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 7,501 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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Carling Technologies CA2-B0-34-620-121-D
 Enlarge
Carling Technologies Circuit Breakers 20 A TWO POLE
Page 2,129

Data Sheet
37
In Stock
1: $75.48
10: $53.47
25: $49.38
50: $44.03
100: $43.45



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 277 V 80 V 2 Pole Handle Series Trip (Current) C - 40 C to + 85 C Not Illuminated
Carling Technologies CA2-B0-34-630-121-D
 Enlarge
Carling Technologies Circuit Breakers 30 A TWO POLE
Page 2,129

Data Sheet
47
In Stock
1: $75.48
10: $53.47
25: $49.38
50: $44.03
100: $43.45



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 277 V 80 V 2 Pole Handle Series Trip (Current) C - 40 C to + 85 C Not Illuminated
Carling Technologies EA2-B0-26-450-32E-HB
 Enlarge
Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 2 Pole, Blk Act, 5A
Page 2,129

Data Sheet
105
In Stock
1: $77.49
5: $52.23
10: $44.76
25: $41.78



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 5 A 600 V 125 V 2 Pole Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Carling Technologies EA2-B0-26-620-32E-HB
 Enlarge
Carling Technologies Circuit Breakers Cir Bkr, Hyd/Mag 2 Pole, Blk Act, 20A
Page 2,129

Data Sheet
49
In Stock
1: $77.49
5: $52.24
10: $44.75
25: $41.77



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 20 A 600 V 125 V 2 Pole Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Phoenix Contact 0914138
 Enlarge
Phoenix Contact Circuit Breakers TMC 1 F1 100 5.0A
Data Sheet 24
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-X112-40
 Enlarge
TE Connectivity / P&B Circuit Breakers 40A 3 POLE TOGGLE
Data Sheet 24
In Stock
1: $82.04
25: $70.77
50: $65.55
100: $63.94



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 40 A 277 V 3 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
Phoenix Contact 0903023
 Enlarge
Phoenix Contact Circuit Breakers EC-E1 1A 1 A, N/O SIGNAL CNT
Page 2,941

Data Sheet
37
In Stock
1: $85.59
10: $78.12
25: $76.07
50: $73.57
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Electronic 1 A 24 V 1 Pole Slide Switch EC-E 0 C to + 50 C Not Illuminated
Phoenix Contact 0903022
 Enlarge
Phoenix Contact Circuit Breakers EC-E1 0,5A 0.5A, N/O SIGNAL CNT
Data Sheet 47
In Stock
More Info Available
1: $85.59
10: $78.12
25: $76.07
50: $73.57
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Electronic 500 mA 24 V 1 Pole Slide Switch EC-E 0 C to + 50 C Not Illuminated
TE Connectivity / P&B W93-X112-30
 Enlarge
TE Connectivity / P&B Circuit Breakers 30A 3 POLE TOGGLE
Data Sheet 40
In Stock
1: $85.87
25: $75.44
50: $73.93
100: $63.98
200: Quote



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 30 A 277 V 3 Pole Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
Altech 1BU3R
 Enlarge
Altech Circuit Breakers 3A B Characteristic UL 1077 1 POLE
Page 2,938

Data Sheet
185
In Stock
More Info Available
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 2,938

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 19
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 78
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 Circuit Breakers 80-AMP BREAKER
Data Sheet 62
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
Schurter 4404.0024
 Enlarge
Schurter Circuit Breakers 16A 0.25" QC Threaded neck
Page 2,940

Data Sheet
976
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
Schurter 4404.0010
 Enlarge
Schurter Circuit Breakers 15A 0.25" QC Snap-in front
Page 2,940

Data Sheet
554
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 4404.0007
 Enlarge
Schurter Circuit Breakers 5A 240V AC / 48V DC SNAP-IN MOUNT
Page 2,940

Data Sheet
739
In Stock
1: $1.75
10: $1.66
25: $1.55
50: $1.45
100: $1.27



Min.: 1
Mult.: 1
Thermal Circuit Breakers Circuit Breaker for Equipment 5 A 240 V 48 V 1 Pole Pushbutton T9 - 5 C to + 60 C Not Illuminated
Carling Technologies CTB-B-B-15 Carling Technologies Circuit Breakers 15 AMP 50VDC PNL MNT
Page 2,130

Data Sheet
642
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
811
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
TE Connectivity / P&B W28-XQ1A-16
 Enlarge
TE Connectivity / P&B Circuit Breakers W28-XQ1A-16
Data Sheet 497
In Stock
1: $3.00
25: $2.72
50: $2.46
100: $2.24
200: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 16 A 250 V 32 V 1 Pole Pushbutton Series Trip W28 Not Illuminated
TE Connectivity / P&B W54-XB1A4A10-25
 Enlarge
TE Connectivity / P&B Circuit Breakers 25A PUSH TO RESET
Page 2,131

Data Sheet
380
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
Schurter 4404.0101
 Enlarge
4404.0101

New Product
New Product


Schurter Circuit Breakers 1 pole 8A THT Term for PCB mounting
Page 2,134

Data Sheet
1,679
In Stock
More Info Available
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 8 A 240 V 48 V 1 Pole Pushbutton Trip Free T9-823 - 5 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 2,132

Data Sheet
482
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
Compare up to 20 parts.
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