Circuit Breakers – Mouser Singapore

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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 35A 5K C-TRIP

5SY43357
Siemens
1: $253.06
2In Stock

Mfr. Part No.
5SY43357

Mouser Part No
982-5SY43357

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 35A 5K C-TRIP

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Datasheet

2In Stock

$253.06

$224.44

$211.96

$174.57

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

35 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 40A 5K C-TRIP

5SY43407
Siemens
1: $248.25
3In Stock

Mfr. Part No.
5SY43407

Mouser Part No
982-5SY43407

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 40A 5K C-TRIP

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Datasheet

3In Stock

$248.25

$200.55

$183.22

$159.11

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

40 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 40A 5K D-TRIP

5SY43408
Siemens
1: $250.12
5In Stock

Mfr. Part No.
5SY43408

Mouser Part No
982-5SY43408

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 40A 5K D-TRIP

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Datasheet

5In Stock

$250.12

$224.40

$183.67

$159.11

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

40 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 50A 5K D-TRIP

5SY43508
Siemens
1: $357.05
5In Stock

Mfr. Part No.
5SY43508

Mouser Part No
982-5SY43508

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 50A 5K D-TRIP

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Datasheet

5In Stock

$357.05

$257.09

$247.21

$221.89

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

50 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 63A 5K D-TRIP

5SY43638
Siemens
1: $296.53
3In Stock

Mfr. Part No.
5SY43638

Mouser Part No
982-5SY43638

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 63A 5K D-TRIP

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Datasheet

3In Stock

$296.53

$252.34

$215.06

$196.43

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

63 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 4P 480V 10A 5K C-TRIP

5SY44107
Siemens
1: $329.04
1In Stock

Mfr. Part No.
5SY44107

Mouser Part No
982-5SY44107

Siemens

Circuit Breakers SUP PTOR 5SY4 4P 480V 10A 5K C-TRIP

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Datasheet

1In Stock

$329.04

$292.60

$286.44

$282.80

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

10 A

400 VAC

60 VDC

4 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 4P 480V 16A 5K C-TRIP

5SY44167
Siemens
1: $338.76
2In Stock

Mfr. Part No.
5SY44167

Mouser Part No
982-5SY44167

Siemens

Circuit Breakers SUP PTOR 5SY4 4P 480V 16A 5K C-TRIP

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Datasheet

2In Stock

$338.76

$279.83

$270.81

$263.34

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

16 A

400 VAC

60 VDC

4 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY45067
Siemens
1: $156.11
4In Stock

Mfr. Part No.
5SY45067

Mouser Part No
982-5SY45067

Siemens

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

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Datasheet

4In Stock

$156.11

$121.71

$112.60

$98.73

$91.21

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

6 A

230 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY45068
Siemens
1: $159.28
5In Stock

Mfr. Part No.
5SY45068

Mouser Part No
982-5SY45068

Siemens

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

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Datasheet

5In Stock

$159.28

$138.29

$133.06

$130.41

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

6 A

230 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY45107
Siemens
1: $156.19
5In Stock

Mfr. Part No.
5SY45107

Mouser Part No
982-5SY45107

Siemens

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

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Datasheet

5In Stock

$156.19

$147.26

$133.93

$130.97

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

10 A

230 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers MSP 1P+N 240V 16A 7.5K C-TRIP

5SY45167
Siemens
1: $167.63
5In Stock

Mfr. Part No.
5SY45167

Mouser Part No
982-5SY45167

Siemens

Circuit Breakers MSP 1P+N 240V 16A 7.5K C-TRIP

Learn More

Datasheet

5In Stock

$167.63

$127.92

$124.50

$123.39

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

16 A

230 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P+N 240V 20A 7.5K C-TRIP

5SY45207
Siemens
1: $156.14
3In Stock

Mfr. Part No.
5SY45207

Mouser Part No
982-5SY45207

Siemens

Circuit Breakers SUP PTOR 5SY4 1P+N 240V 20A 7.5K C-TRIP

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Datasheet

3In Stock

$156.14

$135.66

$128.59

$123.99

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

20 A

230 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P+N 480V 16A 5K C-TRIP

5SY46167
Siemens
1: $352.42
3In Stock

Mfr. Part No.
5SY46167

Mouser Part No
982-5SY46167

Siemens

Circuit Breakers SUP PTOR 5SY4 3P+N 480V 16A 5K C-TRIP

Learn More

Datasheet

3In Stock

$352.42

$284.51

$279.82

$276.87

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

16 A

400 VAC

60 VDC

4 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 1.6A 7.5K C-TRIP

5SY41157
Siemens
1: $98.23
1Expected 4/3/2026

Mfr. Part No.
5SY41157

Mouser Part No
982-5SY41157

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 1.6A 7.5K C-TRIP

Learn More

Datasheet

1Expected 4/3/2026

$98.23

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

1.6 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: $93.32
20On Order

Mfr. Part No.
5SY41167

Mouser Part No
982-5SY41167

Siemens

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

Learn More

Datasheet

20On Order

$93.32

$77.41

$71.39

$59.09

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

16 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42105
Siemens
1: $165.42
6Expected 6/3/2026

Mfr. Part No.
5SY42105

Mouser Part No
982-5SY42105

Siemens

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

Learn More

Datasheet

6Expected 6/3/2026

$165.42

$154.89

$149.34

$147.09

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

10 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 25A 5K C-TRIP

5SY43257
Siemens
1: $253.06
5Expected 10/4/2026

Mfr. Part No.
5SY43257

Mouser Part No
982-5SY43257

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 25A 5K C-TRIP

Learn More

Datasheet

5Expected 10/4/2026

$253.06

$224.71

$215.66

$212.36

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

25 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY41015
Siemens
1: $89.99
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
5SY41015

Mouser Part No
982-5SY41015

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$89.99

$87.63

$86.49

$85.47

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

1 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 3A 7.5K A-TRIP

5SY41035
Siemens
1: $98.23
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
5SY41035

Mouser Part No
982-5SY41035

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 3A 7.5K A-TRIP

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$98.23

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

3 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 1P 240V 3A 7.5K D-TRIP

5SY41038
Siemens
1: $108.21
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
5SY41038

Mouser Part No
982-5SY41038

Siemens

Circuit Breakers SUP PTOR 5SY4 1P 240V 3A 7.5K D-TRIP

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$108.21

$90.67

$83.62

$69.24

Min.: 1
Mult.: 1

Circuit Breaker

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 A-TRIP

5SY41045
Siemens
1: $98.23
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
5SY41045

Mouser Part No
982-5SY41045

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$98.23

Min.: 1
Mult.: 1

Circuit Breaker

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 B-TRIP

5SY41046
Siemens
1: $89.25
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
5SY41046

Mouser Part No
982-5SY41046

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$89.25

$81.98

$79.55

$77.88

View

Min.: 1
Mult.: 1

Circuit Breaker

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 C-TRIP

5SY41057
Siemens
1: $98.23
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
5SY41057

Mouser Part No
982-5SY41057

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

$98.23

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

500 mA

400 VAC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY41058
Siemens
1: $115.12
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
5SY41058

Mouser Part No
982-5SY41058

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

$115.12

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

500 mA

400 VAC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY41065
Siemens
1: $85.60
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
5SY41065

Mouser Part No
982-5SY41065

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 3 Weeks

$85.60

$81.63

$79.33

$77.44

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

6 A

400 VAC

60 VDC

1 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

5SY4 Miniature Circuit Breakers

Customer Service Office

Company

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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