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18 mm Circuit Breakers

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Results: 231

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Width = 18 mm

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Part #

Circuit Breakers MCB 5SJ4 1P 240V 15A 14K C-TRIP

5SJ41187HG41
Siemens
1: $109.69
9In Stock
10Expected 9/11/2026

Mfr. Part #
5SJ41187HG41

Mouser Part #
982-5SJ41187HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 15A 14K C-TRIP

Learn More

Datasheet

9In Stock

10Expected 9/11/2026

$109.69

$93.24

$86.18

$70.66

$65.66

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

15 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 15A 10K C-TRIP

5SJ41187HG42
Siemens
1: $109.69
2In Stock

Mfr. Part #
5SJ41187HG42

Mouser Part #
982-5SJ41187HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 15A 10K C-TRIP

Learn More

Datasheet

2In Stock

$109.69

$93.25

$81.76

$70.66

$65.66

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

15 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 15A SAME PH 14K D-TRIP

5SJ41188HG40
Siemens
1: $101.93
5In Stock

Mfr. Part #
5SJ41188HG40

Mouser Part #
982-5SJ41188HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 15A SAME PH 14K D-TRIP

Learn More

Datasheet

5In Stock

$101.93

$77.60

$72.06

$63.17

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

15 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 20A SAME PH 14K B-TRIP

5SJ41206HG40
Siemens
1: $101.93
5In Stock

Mfr. Part #
5SJ41206HG40

Mouser Part #
982-5SJ41206HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 20A SAME PH 14K B-TRIP

Learn More

Datasheet

5In Stock

$101.93

$85.35

$79.22

$65.56

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

20 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 20A SAME PH 14K C-TRIP

5SJ41207HG40
Siemens
1: $101.26
24In Stock

Mfr. Part #
5SJ41207HG40

Mouser Part #
982-5SJ41207HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 20A SAME PH 14K C-TRIP

Learn More

Datasheet

24In Stock

$101.26

$85.35

$79.25

$65.57

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

20 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 20A 10K C-TRIP

5SJ41207HG42
Siemens
1: $109.69
8In Stock

Mfr. Part #
5SJ41207HG42

Mouser Part #
982-5SJ41207HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 20A 10K C-TRIP

Learn More

Datasheet

8In Stock

$109.69

$93.24

$86.18

$70.66

$65.66

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

20 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 20A 10K D-TRIP

5SJ41208HG42
Siemens
1: $109.86
6In Stock

Mfr. Part #
5SJ41208HG42

Mouser Part #
982-5SJ41208HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 20A 10K D-TRIP

Learn More

Datasheet

6In Stock

$109.86

$95.33

$83.24

$71.31

$65.66

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

20 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 25A 14K C-TRIP

5SJ41257HG41
Siemens
1: $111.02
4In Stock

Mfr. Part #
5SJ41257HG41

Mouser Part #
982-5SJ41257HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 25A 14K C-TRIP

Learn More

Datasheet

4In Stock

$111.02

$93.33

$86.18

$69.03

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 25A 10K C-TRIP

5SJ41257HG42
Siemens
1: $107.30
5In Stock

Mfr. Part #
5SJ41257HG42

Mouser Part #
982-5SJ41257HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 25A 10K C-TRIP

Learn More

Datasheet

5In Stock

$107.30

$93.08

$89.91

$83.38

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 30A 14K C-TRIP

5SJ41307HG41
Siemens
1: $110.66
3In Stock

Mfr. Part #
5SJ41307HG41

Mouser Part #
982-5SJ41307HG41

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 30A 14K C-TRIP

Learn More

Datasheet

3In Stock

$110.66

$93.24

$78.73

$69.03

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

30 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 30A 10K C-TRIP

5SJ41307HG42
Siemens
1: $110.66
4In Stock

Mfr. Part #
5SJ41307HG42

Mouser Part #
982-5SJ41307HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 30A 10K C-TRIP

Learn More

Datasheet

4In Stock

$110.66

$93.24

$78.73

$69.03

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

30 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 32A 10K D-TRIP

5SJ41328HG42
Siemens
1: $119.03
1In Stock

Mfr. Part #
5SJ41328HG42

Mouser Part #
982-5SJ41328HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 32A 10K D-TRIP

Learn More

Datasheet

1In Stock

$119.03

$104.10

$97.86

$92.66

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

32 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 240V 40A SAME PH 14K C-TRIP

5SJ41407HG40
Siemens
1: $102.01
12In Stock

Mfr. Part #
5SJ41407HG40

Mouser Part #
982-5SJ41407HG40

Siemens

Circuit Breakers MCB 5SJ4 1P 240V 40A SAME PH 14K C-TRIP

Learn More

Datasheet

12In Stock

$102.01

$93.51

$84.15

$71.85

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

40 A

240 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 1P 277V 40A 10K C-TRIP

5SJ41407HG42
Siemens
1: $121.10
5In Stock

Mfr. Part #
5SJ41407HG42

Mouser Part #
982-5SJ41407HG42

Siemens

Circuit Breakers MCB 5SJ4 1P 277V 40A 10K C-TRIP

Learn More

Datasheet

5In Stock

$121.10

$102.44

$85.33

$75.62

View

Min.: 1
Mult.: 1

5SJ4

Circuit Breakers

Miniature

40 A

277 VAC

60 VDC

1 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K C-TRIP

5SY41017
Siemens
1: $97.75
20In Stock

Mfr. Part #
5SY41017

Mouser Part #
982-5SY41017

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K C-TRIP

Learn More

Datasheet

20In Stock

$97.75

$90.26

$85.51

$61.88

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

1 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K D-TRIP

5SY41018
Siemens
1: $111.61
5In Stock

Mfr. Part #
5SY41018

Mouser Part #
982-5SY41018

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 1A 7.5K D-TRIP

Learn More

Datasheet

5In Stock

$111.61

$94.77

$83.20

$71.90

$66.74

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

1 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K A-TRIP

5SY41025
Siemens
1: $93.22
3In Stock

Mfr. Part #
5SY41025

Mouser Part #
982-5SY41025

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K A-TRIP

Learn More

Datasheet

3In Stock

$93.22

$80.34

$77.32

$71.73

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

2 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K B-TRIP

5SY41026
Siemens
1: $93.22
5In Stock

Mfr. Part #
5SY41026

Mouser Part #
982-5SY41026

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K B-TRIP

Learn More

Datasheet

5In Stock

$93.22

$80.34

$77.32

$71.73

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

2 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K C-TRIP

5SY41027
Siemens
1: $95.11
16In Stock

Mfr. Part #
5SY41027

Mouser Part #
982-5SY41027

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K C-TRIP

Learn More

Datasheet

16In Stock

$95.11

$85.97

$83.14

$61.88

View

Min.: 1
Mult.: 1

5SY4

Circuit Breakers

Miniature

2 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K D-TRIP

5SY41028
Siemens
1: $112.54
8In Stock

Mfr. Part #
5SY41028

Mouser Part #
982-5SY41028

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 2A 7.5K D-TRIP

Learn More

Datasheet

8In Stock

$112.54

$96.90

$80.12

$70.24

View

Min.: 1
Mult.: 1

5SY4

Circuit Breakers

Miniature

2 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers circuit breaker 10ka 1pole b3

5SY41036
Siemens
1: $89.90
1In Stock

Mfr. Part #
5SY41036

Mouser Part #
982-5SY41036

Siemens

Circuit Breakers circuit breaker 10ka 1pole b3

Learn More

Datasheet

1In Stock

$89.90

$69.17

$64.84

$55.72

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

3 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers MINIATURE CURCIUT BREAKER, 230/400V 10kA

5SY41037
Siemens
1: $81.85
10In Stock

Mfr. Part #
5SY41037

Mouser Part #
982-5SY41037

Siemens

Circuit Breakers MINIATURE CURCIUT BREAKER, 230/400V 10kA

Learn More

Datasheet

10In Stock

$81.85

$66.44

$63.34

$57.82

View

Min.: 1
Mult.: 1

5SY4

Circuit Breakers

Miniature

3 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 4A 7.5K C-TRIP

5SY41047
Siemens
1: $86.55
13In Stock

Mfr. Part #
5SY41047

Mouser Part #
982-5SY41047

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 4A 7.5K C-TRIP

Learn More

Datasheet

13In Stock

$86.55

$72.10

$69.89

$60.59

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 0.5A 7.5K A-TRIP

5SY41055
Siemens
1: $93.22
1In Stock

Mfr. Part #
5SY41055

Mouser Part #
982-5SY41055

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 0.5A 7.5K A-TRIP

Learn More

Datasheet

1In Stock

$93.22

$80.34

$77.32

$71.73

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

500 mA

400 VAC

72 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 0.5A 7.5K C-TRIP

5SY41057
Siemens
1: $97.75
10In Stock

Mfr. Part #
5SY41057

Mouser Part #
982-5SY41057

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 0.5A 7.5K C-TRIP

Learn More

Datasheet

10In Stock

$97.75

$83.64

$81.09

$77.06

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

500 mA

400 VAC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

18 mm Circuit Breakers

Customer Service Office

Company

Resources

Support

300 mA
500 mA
1 A
1.6 A
2 A
2.5 A
3 A
4 A
5 A
6 A
8 A
10 A
13 A
15 A
16 A
20 A
25 A
30 A
32 A
35 A