Circuit Breakers – Mouser Canada

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5SY4 Miniature Circuit Breakers

Siemens 5SY4 Miniature Circuit Breakers provide safe short-circuit and overload protection for industrial applications. Siemens 5SY Miniature Circuit Breakers are available in 1-, 2-, 3-, 4-, 1+N, and 3+N-pole versions and are designed for rated currents from 0.3A to 80A at rated switching capacities of 6kA, 10kA, and 15kA. 5SY4 protects circuits of air-conditioning and ventilation systems, control cabinets, and controllers from the consequences of short-circuit and overload events.

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Part #

Circuit Breakers SUP PTOR 5SY4 3P 480V 0.5A 5K D-TRIP

5SY43058
Siemens
1: $277.86
1In Stock

Mfr. Part #
5SY43058

Mouser Part #
982-5SY43058

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 0.5A 5K D-TRIP

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Datasheet

1In Stock

$277.86

$247.94

$234.72

$220.29

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

500 mA

400 VAC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 2.5A 7.5K C-TRIP

5SY41007
Siemens
1: $110.45
3In Stock

Mfr. Part #
5SY41007

Mouser Part #
982-5SY41007

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 2.5A 7.5K C-TRIP

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Datasheet

3In Stock

$110.45

$88.99

$85.65

$79.46

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

2.5 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K B-TRIP

5SY41066
Siemens
1: $104.05
44In Stock

Mfr. Part #
5SY41066

Mouser Part #
982-5SY41066

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K B-TRIP

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Datasheet

44In Stock

$104.05

$94.77

$87.87

$80.42

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 16A 7.5K C-TRIP

5SY41167
Siemens
1: $85.54
36In Stock

Mfr. Part #
5SY41167

Mouser Part #
982-5SY41167

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 16A 7.5K C-TRIP

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Datasheet

36In Stock

$85.54

$85.52

$82.79

$60.08

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 15A 7.5K C-TRIP

5SY41187
Siemens
1: $84.59
33In Stock

Mfr. Part #
5SY41187

Mouser Part #
982-5SY41187

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 15A 7.5K C-TRIP

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Datasheet

33In Stock

$84.59

$77.86

$75.36

$68.54

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

15 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 10A 5K C-TRIP

5SY42107
Siemens
1: $201.97
19In Stock

Mfr. Part #
5SY42107

Mouser Part #
982-5SY42107

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 10A 5K C-TRIP

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Datasheet

19In Stock

$201.97

$184.87

$168.57

$128.19

$117.99

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 4P 480V 40A 5K C-TRIP

5SY44407
Siemens
1: $387.42
8In Stock

Mfr. Part #
5SY44407

Mouser Part #
982-5SY44407

Siemens

Circuit Breakers SUP PTOR 5SY4 4P 480V 40A 5K C-TRIP

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Datasheet

8In Stock

$387.42

$304.34

$302.47

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

40 A

400 VAC

60 VDC

4 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY41018
Siemens
1: $123.62
5In Stock

Mfr. Part #
5SY41018

Mouser Part #
982-5SY41018

Siemens

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

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Datasheet

5In Stock

$123.62

$104.98

$92.16

$79.65

$73.93

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: $103.26
3In Stock

Mfr. Part #
5SY41025

Mouser Part #
982-5SY41025

Siemens

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

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Datasheet

3In Stock

$103.26

$88.99

$85.65

$79.46

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: $103.26
1In Stock
4Expected 2026-08-03

Mfr. Part #
5SY41026

Mouser Part #
982-5SY41026

Siemens

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

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Datasheet

1In Stock

4Expected 2026-08-03

$103.26

$90.16

$85.67

$80.14

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: $104.67
21In Stock

Mfr. Part #
5SY41027

Mouser Part #
982-5SY41027

Siemens

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

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Datasheet

21In Stock

$104.67

$97.73

$95.59

$68.54

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: $124.66
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

$124.66

$107.34

$88.75

$77.80

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: $99.58
1In Stock

Mfr. Part #
5SY41036

Mouser Part #
982-5SY41036

Siemens

Circuit Breakers circuit breaker 10ka 1pole b3

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Datasheet

1In Stock

$99.58

$76.62

$71.83

$61.72

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: $88.42
3In Stock
10Expected 2026-07-27

Mfr. Part #
5SY41037

Mouser Part #
982-5SY41037

Siemens

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

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Datasheet

3In Stock

10Expected 2026-07-27

$88.42

$74.78

$72.29

$67.38

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: $87.31
15In Stock

Mfr. Part #
5SY41047

Mouser Part #
982-5SY41047

Siemens

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

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Datasheet

15In Stock

$87.31

$73.30

$68.96

$64.24

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 4A 7.5K D-TRIP

5SY41048
Siemens
1: $123.83
5In Stock

Mfr. Part #
5SY41048

Mouser Part #
982-5SY41048

Siemens

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

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Datasheet

5In Stock

$123.83

$105.11

$93.84

$80.29

$73.93

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: $103.26
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

$103.26

$88.99

$85.65

$79.46

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 6A 7.5K C-TRIP

5SY41067
Siemens
1: $104.04
21In Stock

Mfr. Part #
5SY41067

Mouser Part #
982-5SY41067

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K C-TRIP

Learn More

Datasheet

21In Stock

$104.04

$93.28

$90.43

$68.54

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K D-TRIP

5SY41068
Siemens
1: $123.83
5In Stock

Mfr. Part #
5SY41068

Mouser Part #
982-5SY41068

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 6A 7.5K D-TRIP

Learn More

Datasheet

5In Stock

$123.83

$112.08

$97.04

$80.29

$73.93

Min.: 1
Mult.: 1

5SY4

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K A-TRIP

5SY41105
Siemens
1: $104.05
4In Stock

Mfr. Part #
5SY41105

Mouser Part #
982-5SY41105

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K A-TRIP

Learn More

Datasheet

4In Stock

$104.05

$90.49

$85.97

$80.42

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K B-TRIP

5SY41106
Siemens
1: $104.05
5In Stock

Mfr. Part #
5SY41106

Mouser Part #
982-5SY41106

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K B-TRIP

Learn More

Datasheet

5In Stock

$104.05

$94.77

$85.97

$80.42

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K C-TRIP

5SY41107
Siemens
1: $101.32
29In Stock

Mfr. Part #
5SY41107

Mouser Part #
982-5SY41107

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K C-TRIP

Learn More

Datasheet

29In Stock

$101.32

$93.25

$84.93

$68.54

View

Min.: 1
Mult.: 1

5SY4

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K D-TRIP

5SY41108
Siemens
1: $123.83
10In Stock

Mfr. Part #
5SY41108

Mouser Part #
982-5SY41108

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 10A 7.5K D-TRIP

Learn More

Datasheet

10In Stock

$123.83

$105.09

$99.46

$80.29

$73.93

Min.: 1
Mult.: 1

5SY4

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY41117
Siemens
1: $105.16
18In Stock

Mfr. Part #
5SY41117

Mouser Part #
982-5SY41117

Siemens

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

Learn More

Datasheet

18In Stock

$105.16

$89.80

$68.54

$63.12

$57.46

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

5 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 13A 7.5K C-TRIP

5SY41137
Siemens
1: $110.45
6In Stock

Mfr. Part #
5SY41137

Mouser Part #
982-5SY41137

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 13A 7.5K C-TRIP

Learn More

Datasheet

6In Stock

$110.45

$85.65

$79.46

$76.88

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

13 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

5SY4 Miniature Circuit Breakers

Mouser Electronics®

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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