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 2P 480V 4A 5K A-TRIP

5SY42045
Siemens
1: $193.38
5In Stock

Mfr. Part #
5SY42045

Mouser Part #
982-5SY42045

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 4A 5K A-TRIP

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Datasheet

5In Stock

$193.38

$166.55

$161.51

$149.53

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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 2P 480V 40A 5K B-TRIP

5SY42406
Siemens
1: $176.80
1In Stock

Mfr. Part #
5SY42406

Mouser Part #
982-5SY42406

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 40A 5K B-TRIP

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Datasheet

1In Stock

$176.80

$168.22

$162.14

$156.64

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

40 A

400 VAC

60 VDC

2 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: $91.31
32In 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

32In Stock

$91.31

$84.48

$64.05

$61.29

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: $202.80
17In 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

17In Stock

$202.80

$185.60

$170.76

$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 C-TRIP

5SY41017
Siemens
1: $108.27
20In Stock

Mfr. Part #
5SY41017

Mouser Part #
982-5SY41017

Siemens

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

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Datasheet

20In Stock

$108.27

$89.80

$82.81

$68.54

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: $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 2026-08-12

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 2026-08-12

$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 C-TRIP

5SY41027
Siemens
1: $105.35
16In 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

16In Stock

$105.35

$95.23

$92.09

$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

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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
10In Stock

Mfr. Part #
5SY41037

Mouser Part #
982-5SY41037

Siemens

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

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Datasheet

10In Stock

$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
13In 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

13In 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 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

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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 0.5A 7.5K C-TRIP

5SY41057
Siemens
1: $108.27
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

$108.27

$92.65

$89.83

$85.36

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

500 mA

400 VAC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY41067
Siemens
1: $104.60
16In Stock

Mfr. Part #
5SY41067

Mouser Part #
982-5SY41067

Siemens

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

Learn More

Datasheet

16In Stock

$104.60

$88.19

$83.55

$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: $123.62
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

$123.62

$104.98

$92.17

$79.65

$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 8A 7.5K C-TRIP

5SY41087
Siemens
1: $106.88
10In Stock

Mfr. Part #
5SY41087

Mouser Part #
982-5SY41087

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 8A 7.5K C-TRIP

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Datasheet

10In Stock

$106.88

$86.54

$80.14

$68.54

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

8 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

5SY4 Miniature Circuit Breakers

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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