.hide-partial { max-height: none; } .show-more { display: none; }

M Series Circuit Breakers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 1,695

Applied Filters:

Series = M

Product

Type

Current Rating

Voltage Rating AC

Voltage Rating DC

Number of Poles

Actuator Type

Minimum Operating Temperature

Maximum Operating Temperature

Illuminated

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circuit Breakers 15 A ONE POLE ANGLED

MA1-B-34-615-1-A26-B-C
Carling Technologies
1: $49.75
10Expected 2026-03-16

Mfr. Part #
MA1-B-34-615-1-A26-B-C

Mouser Part #
691-MA1B346151A26BC

Carling Technologies

Circuit Breakers 15 A ONE POLE ANGLED

Learn More

Datasheet

10Expected 2026-03-16

$49.75

$37.81

$29.90

$29.64

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

15 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MD1B346251A34BC

MD1-B-34-625-1-A34-B-C
Carling Technologies
1: $46.59
7Expected 2026-03-16

Mfr. Part #
MD1-B-34-625-1-A34-B-C

Mouser Part #
691-MD1B346251A34BC

Carling Technologies

Circuit Breakers MD1B346251A34BC

Learn More

Datasheet

7Expected 2026-03-16

$46.59

$45.70

$39.80

$38.51

View

Min.: 1
Mult.: 1

Circuit Breaker

Supplementary Protector

125 VAC, 250 VAC

80 VDC

Circuit Breakers MD1B346253A35BC

MD1-B-34-625-3-A35-B-C
Carling Technologies
1: $46.59
9Expected 2026-03-17

Mfr. Part #
MD1-B-34-625-3-A35-B-C

Mouser Part #
691-MD1B346253A35BC

Carling Technologies

Circuit Breakers MD1B346253A35BC

Learn More

Datasheet

9Expected 2026-03-17

$46.59

$45.84

$42.44

$41.71

View

Min.: 1
Mult.: 1

Circuit Breaker

Supplementary Protector

125 VAC, 250 VAC

80 VDC

Circuit Breakers MN2B2262542AABC

MN2-B-22-625-4-2AA-B-C
Carling Technologies
1: $86.51
5Expected 2026-03-18

Mfr. Part #
MN2-B-22-625-4-2AA-B-C

Mouser Part #
691-MN2B2262542AABC

Carling Technologies

Circuit Breakers MN2B2262542AABC

Learn More

Datasheet

5Expected 2026-03-18

$86.51

$75.12

$68.45

$67.80

View

Min.: 1
Mult.: 1

Hydraulic Magnetic Circuit Breaker

Hydraulic Magnetic

25 A

125 VAC, 250 VAC

80 VDC

2 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MS1B1461031CBA0AC

MS1-B-14-610-3-1CB-A-0AC
Carling Technologies
1: $123.77
4Expected 2026-05-04

Mfr. Part #
MS1-B-14-610-3-1CB-A-0AC

Mouser Part #
691-MS1B1461031CBA

Carling Technologies

Circuit Breakers MS1B1461031CBA0AC

Learn More

Datasheet

4Expected 2026-05-04

$123.77

$107.86

$96.40

$96.06

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

10 A

65 VDC

1 Pole

Toggle

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MD1B326251A32BC

MD1-B-32-625-1-A32-B-C
Carling Technologies
1: $58.87
8Expected 2026-04-20

Mfr. Part #
MD1-B-32-625-1-A32-B-C

Mouser Part #
691-MD1B326251A32BC

Carling Technologies

Circuit Breakers MD1B326251A32BC

Learn More

Datasheet

8Expected 2026-04-20

$58.87

$55.41

$40.05

$39.65

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

25 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers M SERIES ROCKER

MF1-B-32-450-1-BB2-B-C
Carling Technologies
1: $49.33
20Expected 2026-03-06

Mfr. Part #
MF1-B-32-450-1-BB2-B-C

Mouser Part #
691-MF1B324501BB2BC

Carling Technologies

Circuit Breakers M SERIES ROCKER

Learn More

Datasheet

20Expected 2026-03-06

$49.33

$47.57

$37.10

$36.63

View

Min.: 1
Mult.: 1

Circuit Breaker

Supplementary Protector

5 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Illuminated

Circuit Breakers Mag Circuit Breaker

MF2-B-32-615-1-CC5-7-C
Carling Technologies
1: $114.08
5Expected 2026-02-23

Mfr. Part #
MF2-B-32-615-1-CC5-7-C

Mouser Part #
691-MF2B326151CC57C

Carling Technologies

Circuit Breakers Mag Circuit Breaker

Learn More

Datasheet

5Expected 2026-02-23

$114.08

$94.63

$80.36

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

15 A

125 VAC, 250 VAC

80 VDC

2 Pole

Rocker

- 40 C

+ 85 C

Illuminated

Circuit Breakers MT1B144203A23BJ

MT1-B-14-420-3-A23-B-J
Carling Technologies
1: $76.11
3Expected 2026-03-20

Mfr. Part #
MT1-B-14-420-3-A23-B-J

Mouser Part #
691-MT1B144203A23BJ

Carling Technologies

Circuit Breakers MT1B144203A23BJ

Learn More

Datasheet

3Expected 2026-03-20

$76.11

$58.76

$58.68

$57.30

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

2 A

125 VAC, 250 VAC

80 VDC

1 Pole

Push-Pull

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MT1B144303A23BJ

MT1-B-14-430-3-A23-B-J
Carling Technologies
1: $65.82
9Expected 2026-03-20

Mfr. Part #
MT1-B-14-430-3-A23-B-J

Mouser Part #
691-MT1B144303A23BJ

Carling Technologies

Circuit Breakers MT1B144303A23BJ

Learn More

Datasheet

9Expected 2026-03-20

$65.82

$59.13

$53.73

$53.71

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

3 A

125 VAC, 250 VAC

80 VDC

1 Pole

Push-Pull

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MT1B144403A23BJ

MT1-B-14-440-3-A23-B-J
Carling Technologies
1: $76.75
9Expected 2026-03-20

Mfr. Part #
MT1-B-14-440-3-A23-B-J

Mouser Part #
691-MT1B14443A23BJ

Carling Technologies

Circuit Breakers MT1B144403A23BJ

Learn More

Datasheet

9Expected 2026-03-20

$76.75

$63.67

$39.66

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

4 A

125 VAC, 250 VAC

80 VDC

1 Pole

Push-Pull

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MT1B144501A23BJ

MT1-B-14-450-1-A23-B-J
Carling Technologies
1: $57.16
16Expected 2026-04-30

Mfr. Part #
MT1-B-14-450-1-A23-B-J

Mouser Part #
691-MT1B144501A23BJ

Carling Technologies

Circuit Breakers MT1B144501A23BJ

Learn More

Datasheet

16Expected 2026-04-30

$57.16

$51.73

$50.21

$43.85

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

5 A

125 VAC, 250 VAC

80 VDC

1 Pole

Push-Pull

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers Carling Technologies

MT1-B-14-450-3-A23-B-J
Carling Technologies
1: $66.56
11Expected 2026-03-20

Mfr. Part #
MT1-B-14-450-3-A23-B-J

Mouser Part #
691-MT1B144503A23BJ

Carling Technologies

Circuit Breakers Carling Technologies

Learn More

Datasheet

11Expected 2026-03-20

$66.56

$52.60

$52.16

$52.13

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

5 A

125 VAC, 250 VAC

80 VDC

1 Pole

Push-Pull

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MT1B146103A23BJ

MT1-B-14-610-3-A23-B-J
Carling Technologies
1: $64.29
9Expected 2026-03-20

Mfr. Part #
MT1-B-14-610-3-A23-B-J

Mouser Part #
691-MT1B146103A23BJ

Carling Technologies

Circuit Breakers MT1B146103A23BJ

Learn More

Datasheet

9Expected 2026-03-20

$64.29

$58.68

$52.24

$51.98

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

10 A

125 VAC, 250 VAC

80 VDC

1 Pole

Push-Pull

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MS1M12450E1CAA0AE

MS1-M-12-450-E-1CA-A-0AE
Carling Technologies
1: $137.06
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MS1-M-12-450-E-1CA-A-0AE

Mouser Part #
691-1M12450E1CAA0AE

Carling Technologies

Circuit Breakers MS1M12450E1CAA0AE

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$137.06

$123.18

$84.62

$80.56

View

Min.: 1
Mult.: 1

Circuit Breaker

Supplementary Protector

5 A

65 VDC

1 Pole

Toggle

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA1M346101A12BC

MA1-M-34-610-1-A12-B-C
Carling Technologies
1: $58.71
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-M-34-610-1-A12-B-C

Mouser Part #
691-MA1-M346101A12BC

Carling Technologies

Circuit Breakers MA1M346101A12BC

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$58.71

$51.98

$40.45

$39.76

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

10 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA14144601A867E

MA1-4-14-460-1-A86-7-E
Carling Technologies
1: $109.12
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-4-14-460-1-A86-7-E

Mouser Part #
691-MA1414461A867E

Carling Technologies

Circuit Breakers MA14144601A867E

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$109.12

$102.34

$76.17

$71.62

Quote

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

6 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA14146151A262C

MA1-4-14-615-1-A26-2-C
Carling Technologies
1: $102.09
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-4-14-615-1-A26-2-C

Mouser Part #
691-MA14146151A262C

Carling Technologies

Circuit Breakers MA14146151A262C

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$102.09

$84.70

$66.80

Quote

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

15 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA19144101A162J

MA1-9-14-410-1-A16-2-J
Carling Technologies
1: $94.53
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-9-14-410-1-A16-2-J

Mouser Part #
691-MA19144101A162J

Carling Technologies

Circuit Breakers MA19144101A162J

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$94.53

$81.60

$63.44

$62.34

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

1 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA19144201A162J

MA1-9-14-420-1-A16-2-J
Carling Technologies
1: $94.53
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-9-14-420-1-A16-2-J

Mouser Part #
691-MA19144201A162J

Carling Technologies

Circuit Breakers MA19144201A162J

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$94.53

$81.60

$71.29

$69.52

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

2 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA19144501A162J

MA1-9-14-450-1-A16-2-J
Carling Technologies
1: $119.88
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-9-14-450-1-A16-2-J

Mouser Part #
691-MA19144501A162J

Carling Technologies

Circuit Breakers MA19144501A162J

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$119.88

$115.34

$73.47

$72.36

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

5 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA19144751A162J

MA1-9-14-475-1-A16-2-J
Carling Technologies
1: $107.25
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-9-14-475-1-A16-2-J

Mouser Part #
691-MA19144751A162J

Carling Technologies

Circuit Breakers MA19144751A162J

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$107.25

$95.35

$71.58

$70.16

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

7.5 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA19146101A162J

MA1-9-14-610-1-A16-2-J
Carling Technologies
1: $107.25
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-9-14-610-1-A16-2-J

Mouser Part #
691-MA19146101A162J

Carling Technologies

Circuit Breakers MA19146101A162J

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$107.25

$95.35

$71.58

$70.16

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

10 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

Circuit Breakers MA1A036151A222C

MA1-A-03-615-1-A22-2-C
Carling Technologies
1: $53.49
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-A-03-615-1-A22-2-C

Mouser Part #
691-MA1A036151A222C

Carling Technologies

Circuit Breakers MA1A036151A222C

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$53.49

$51.35

$39.50

$38.50

Quote

Min.: 1
Mult.: 1

125 VAC, 250 VAC

80 VDC

Circuit Breakers MA1A036151A252C

MA1-A-03-615-1-A25-2-C
Carling Technologies
1: $53.19
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
MA1-A-03-615-1-A25-2-C

Mouser Part #
691-MA1A36151A252C

Carling Technologies

Circuit Breakers MA1A036151A252C

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$53.19

$49.73

$37.56

$34.88

View

Min.: 1
Mult.: 1

Circuit Breaker

Hydraulic Magnetic

15 A

125 VAC, 250 VAC

80 VDC

1 Pole

Rocker

- 40 C

+ 85 C

Non-Illuminated

M Series Circuit Breakers

Mouser Electronics®

Company

Resources

Support

20 mA
50 mA
100 mA
200 mA
250 mA
300 mA
350 mA
500 mA
600 mA
750 mA
800 mA
850 mA
1 A
1.25 A
1.5 A
1.75 A
2 A
2.25 A
2.5 A
3 A