Contact Mouser (USA)  (800) 346-6873     |     Feedback        
View Cart     |     Change Location  USD
United States United States

Please confirm your currency selection:

US Dollars

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 7,500 Matches  

Manufacturer
 
Reset
 
Product
Reset
 
Product Type
Reset
 
Current Rating
Reset
 
Voltage Rating AC
Reset
 
Voltage Rating DC
Reset
 
Number of Poles
Reset
 
Actuator Type
Reset
 
Circuit Function
Reset
 
Series
Reset
 
Operating Temperature Range
Reset
 
Illuminated
Reset
 

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
Sort by Mouser Part # AscendingSort by Mouser Part # DescendingSort by Mfr. Part # AscendingSort by Mfr. Part # DescendingSort by Mfr. AscendingSort by Mfr. DescendingSort by Availability AscendingSort by Pricing AscendingSort by Pricing DescendingSort by Product AscendingSort by Product DescendingSort by Product Type AscendingSort by Product Type DescendingSort by Current Rating AscendingSort by Current Rating DescendingSort by Voltage Rating AC AscendingSort by Voltage Rating AC DescendingSort by Voltage Rating DC AscendingSort by Voltage Rating DC DescendingSort by Number of Poles AscendingSort by Number of Poles DescendingSort by Actuator Type AscendingSort by Actuator Type DescendingSort by Circuit Function AscendingSort by Circuit Function DescendingSort by Series AscendingSort by Series DescendingSort by Operating Temperature Range AscendingSort by Operating Temperature Range DescendingSort by Illuminated AscendingSort by Illuminated Descending
TE Connectivity / P&B W31-X2M1G-7.50
Enlarge
TE Connectivity / P&B Circuit Breakers 7.5A TOGGLE ACTUATOR
Page 2,131

Data Sheet
39
In Stock
More Info Available
1: $29.52
10: $27.54
25: $25.82
50: $23.36
100: View



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 7.5 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
TE Connectivity / P&B W31-X2M1G-20
Enlarge
TE Connectivity / P&B Circuit Breakers 20A TOGGLE ACTUATOR
Page 2,131

Data Sheet
34
In Stock
More Info Available
1: $29.54
10: $27.56
25: $25.84
50: $23.37
100: $21.76



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 20 A 240 V 50 V 1 Pole Toggle Series Trip W31 - 20 C to + 60 C Not Illuminated
Phoenix Contact 0902030
Enlarge
Phoenix Contact Circuit Breakers TMC 61C 02A
Data Sheet 45
In Stock
1: $29.88
10: $27.74
25: $26.68
50: $25.63
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 2 A 240 V, 415 V 1 Pole Handle TMC 60 Not 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: $33.96
10: $27.17
50: $25.75
100: $24.48



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 15 A 250 V 50 V 2 Poles Rocker Series Trip Overload Sensing W33 Not Illuminated
TE Connectivity / P&B W23-X1A1G-2
Enlarge
TE Connectivity / P&B Circuit Breakers 2A PUSH/PULL ACT.
Page 2,131

Data Sheet
42
In Stock
1: $36.43
10: $33.99
25: $31.87
50: $28.84
100: $26.93



Min.: 1
Mult.: 1
Thermal Circuit Breakers Supplementary Protector 2 A 240 V 50 V 1 Pole Pushbutton Series Trip W23 - 20 C to + 60 C Not Illuminated
Phoenix Contact 2800845
Enlarge
Phoenix Contact Circuit Breakers CB TM1 16A SFB P
Page 2,133

Data Sheet
34
In Stock
1: $42.89
10: $40.25
25: $37.19
100: $35.44
250: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 16 A 240 V, 277 V 50 V 1 Pole Slide Trip Free CB TM1 - 30 C to + 60 C Not Illuminated
Phoenix Contact 2800837
Enlarge
Phoenix Contact Circuit Breakers CB TM1 2A SFB P
Page 2,133

Data Sheet
26
In Stock
1: $42.89
10: $40.25
25: $37.19
100: $35.44
250: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 2 A 240 V, 277 V 50 V 1 Pole Slide Trip Free CB TM1 - 30 C to + 60 C Not Illuminated
TE Connectivity / P&B W68-X2Q12-15
Enlarge
TE Connectivity / P&B Circuit Breakers 15A 2 POLE 2 TOGGLE
Page 2,132

Data Sheet
19
In Stock
1: $49.28
10: $45.98
25: $43.12
50: $39.01
100: $34.55



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 15 A 277 V 2 Poles Toggle Series Trip W6 - 40 C to + 85 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
35
In Stock
1: $50.29
10: $45.11
25: $44.00
50: $39.80
100: $34.07



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 50 A 277 V 2 Poles Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
Carling Technologies BA2-B0-34-450-121-D
Enlarge
Carling Technologies Circuit Breakers 5 A TWO POLE
Page 2,129

Data Sheet
29
In Stock
1: $59.93
10: $41.22
25: $36.65
50: $33.20
100: $32.20



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector 5 A 277 V 80 V 2 Poles Handle Series Trip (Current) B - 40 C to + 85 C Not Illuminated
Carling Technologies CA2-B0-34-650-121-D
Enlarge
Carling Technologies Circuit Breakers 50 A TWO POLE
Page 2,129

Data Sheet
17
In Stock
1: $75.48
10: $53.47
25: $49.38
50: $44.03



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 50 A 277 V 80 V 2 Poles Handle Series Trip (Current) C - 40 C to + 85 C Not Illuminated
Phoenix Contact 0914167
Enlarge
Phoenix Contact Circuit Breakers TMC 1 F1 100 10.0A
Data Sheet 16
In Stock
1: $77.38
10: $70.62
25: $68.77
50: $66.51
100: View



Min.: 1
Mult.: 1
Device Circuit Breakers Thermomagnetic 10 A 250 V 65 V 1 Pole Toggle TMC - 30 C to + 60 C Not Illuminated
Phoenix Contact 0903023
Enlarge
Phoenix Contact Circuit Breakers EC-E1 1A 1 A, N/O SIGNAL CNT
Data Sheet 14
In Stock
1: $83.40
10: $76.12
25: $74.12
50: $71.68
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
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: $92.59
10: $86.42
25: $81.01
50: $73.30
100: $66.80



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 50 A 277 V 3 Poles Toggle Series Trip W9 - 40 C to + 85 C Not Illuminated
Carling Technologies Circuit Breakers Circuit Breaker 5pole, DC
Data Sheet 8
In Stock
1: $117.98



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 277 V 80 V 5 Poles Handle Series Trip (Current) A Series - 40 C to + 85 C Not Illuminated
Carling Technologies EA3-B0-66-490-11A-GB
Enlarge
Carling Technologies Circuit Breakers CIRCUIT BREAKER 3 POLE 20A
Data Sheet 10
In Stock
1: $127.88
5: $115.50
10: $109.61
20: $104.63
50: View



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 9 A 600 V 125 V 3 Poles Handle Series Trip (Current) E - 40 C to + 85 C Not Illuminated
Carling Technologies CB4-X0-04-053-11C-D
Enlarge
Carling Technologies Circuit Breakers 4 POLE CIRCUIT BRKR
Data Sheet 9
In Stock
1: $158.47
25: $124.83
50: $110.96
100: $97.10



Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Supplementary Protector / Motor Controller 60 A 277 V 80 V 4 Poles Handle C - 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
Qualtek QLB-253-11B3N-3BA
Enlarge
Qualtek Circuit Breakers 25A FRT PANEL METAL .250 QC TAB
Data Sheet 594
In Stock
1: $2.15
50: $1.87
100: $1.72
250: $1.63



Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 25 A 125 V to 250 V 32 V 1 Pole Pushbutton QLB Not Illuminated
Altech 2BU16R
Enlarge
Altech Circuit Breakers 16A B Characteristic UL 1077 2 POLE
Page 2,938

Data Sheet
82
In Stock
1: $23.08
10: $20.95
50: $19.63
100: $19.24
250: View



Min.: 1
Mult.: 1
Circuit Protection Devices B-Trip 16 A 277 V 2 Poles Handle Supplementary Protectors R - 25 C to + 60 C Not Illuminated
TE Connectivity / P&B W51-A122B1-8
Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BRKER 1POLE 8Amps Rocker
Data Sheet 389
In Stock
1: $3.91
25: $3.41
50: $3.09
100: $2.44
200: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 8 A 250 V 50 V 1 Pole Rocker Trip Free - Switchable W51 0 C to + 60 C Illuminated
TE Connectivity / P&B W33-S2N1Q-20
Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 60
In Stock
1: $19.10
25: $17.16
50: $15.83
100: $13.17
200: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 20 A 250 V 50 V 2 Poles Rocker Series Trip Overload Sensing W33 Not Illuminated
Littelfuse 0812005.ZXST
Enlarge
Littelfuse Circuit Breakers 5A STUD TYPE CIRCUIT BREAKER
Data Sheet 85
In Stock
1: $20.44
10: $17.29
25: $15.72
50: $14.94
100: View



Min.: 1
Mult.: 1
No

Aftermarket Circuit Breakers Stud Type 5 A 12 V 1 Pole Self-Reset 81xxxxST Not Illuminated
TE Connectivity / P&B W33-S4B1Q-5
Enlarge
TE Connectivity / P&B Circuit Breakers 2poles 5Amps Rocker Therm Circuit Brker
Data Sheet 79
In Stock
1: $22.52
5: $21.69
10: $20.60
25: $19.70
50: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 5 A 250 V 50 V 2 Poles Rocker Series Trip Overload Sensing W33 Illuminated
TE Connectivity / P&B W33-T2N1Q-5
Enlarge
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER THERMAL
Data Sheet 42
In Stock
1: $27.00
5: $24.24
10: $22.37
25: $18.62
50: View



Min.: 1
Mult.: 1


Thermal Circuit Breakers Supplementary Protector 5 A 250 V 50 V 2 Poles Rocker Series Trip Overload Sensing W33 Not Illuminated
Compare up to 20 parts.
7500