Circuit Breakers – Mouser Honduras

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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 10A 5K B-TRIP

5SY42106
Siemens
1: $134.29
3In Stock

Mfr. Part #
5SY42106

Mouser Part #
982-5SY42106

Siemens

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

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Datasheet

3In Stock

$134.29

$129.14

$123.38

$114.74

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY42108
Siemens
1: $134.27
6In Stock

Mfr. Part #
5SY42108

Mouser Part #
982-5SY42108

Siemens

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

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Datasheet

6In Stock

$134.27

$115.64

$107.67

$89.02

$81.94

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY42117
Siemens
1: $125.43
6In Stock

Mfr. Part #
5SY42117

Mouser Part #
982-5SY42117

Siemens

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

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Datasheet

6In Stock

$125.43

$119.11

$102.07

$87.84

$81.94

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

5 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 13A 5K C-TRIP

5SY42137
Siemens
1: $138.92
5In Stock

Mfr. Part #
5SY42137

Mouser Part #
982-5SY42137

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 13A 5K C-TRIP

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Datasheet

5In Stock

$138.92

$120.22

$111.74

$107.30

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

13 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 16A 5K B-TRIP

5SY42166
Siemens
1: $134.29
5In Stock

Mfr. Part #
5SY42166

Mouser Part #
982-5SY42166

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 16A 5K B-TRIP

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Datasheet

5In Stock

$134.29

$115.66

$112.16

$103.84

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 16A 5K C-TRIP

5SY42167
Siemens
1: $138.90
4In Stock

Mfr. Part #
5SY42167

Mouser Part #
982-5SY42167

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 16A 5K C-TRIP

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Datasheet

4In Stock

$138.90

$116.77

$104.87

$89.02

$81.94

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 16A 5K D-TRIP

5SY42168
Siemens
1: $138.37
3In Stock

Mfr. Part #
5SY42168

Mouser Part #
982-5SY42168

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 16A 5K D-TRIP

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Datasheet

3In Stock

$138.37

$114.68

$105.72

$87.37

$81.39

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 15A 5K C-TRIP

5SY42187
Siemens
1: $137.20
3In Stock
3Expected 9/18/2026

Mfr. Part #
5SY42187

Mouser Part #
982-5SY42187

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 15A 5K C-TRIP

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Datasheet

3In Stock

3Expected 9/18/2026

$137.20

$109.64

$101.96

$88.09

$81.94

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

15 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 20A 5K C-TRIP

5SY42207
Siemens
1: $137.20
14In Stock

Mfr. Part #
5SY42207

Mouser Part #
982-5SY42207

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 20A 5K C-TRIP

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Datasheet

14In Stock

$137.20

$115.66

$109.23

$88.09

$81.94

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 25A 5K C-TRIP

5SY42257
Siemens
1: $134.29
5In Stock

Mfr. Part #
5SY42257

Mouser Part #
982-5SY42257

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 25A 5K C-TRIP

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Datasheet

5In Stock

$134.29

$115.66

$112.16

$103.84

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 2P 480V 25A 5K D-TRIP

5SY42258
Siemens
1: $134.29
1In Stock

Mfr. Part #
5SY42258

Mouser Part #
982-5SY42258

Siemens

Circuit Breakers SUP PTOR 5SY4 2P 480V 25A 5K D-TRIP

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Datasheet

1In Stock

$134.29

$117.04

$112.16

$103.84

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY42407
Siemens
1: $137.20
3In Stock
1Expected 9/8/2026

Mfr. Part #
5SY42407

Mouser Part #
982-5SY42407

Siemens

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

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Datasheet

3In Stock

1Expected 9/8/2026

$137.20

$109.64

$101.96

$88.09

$81.94

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

40 A

400 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 2A 5K C-TRIP

5SY43027
Siemens
1: $192.96
5In Stock

Mfr. Part #
5SY43027

Mouser Part #
982-5SY43027

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 2A 5K C-TRIP

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Datasheet

5In Stock

$192.96

$172.93

$165.38

$153.23

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

2 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 4A 5K C-TRIP

5SY43047
Siemens
1: $192.96
5In Stock

Mfr. Part #
5SY43047

Mouser Part #
982-5SY43047

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 4A 5K C-TRIP

Learn More

Datasheet

5In Stock

$192.96

$172.93

$165.38

$153.23

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers MINIATURE CIRCUIT BREAKER 400V

5SY43055
Siemens
1: $199.92
6In Stock

Mfr. Part #
5SY43055

Mouser Part #
982-5SY43055

Siemens

Circuit Breakers MINIATURE CIRCUIT BREAKER 400V

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Datasheet

6In Stock

$199.92

$168.31

$151.17

$127.56

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

500 mA

400 VAC

72 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 6A C-TRIP

5SY43067
Siemens
1: $181.50
2In Stock

Mfr. Part #
5SY43067

Mouser Part #
982-5SY43067

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 6A C-TRIP

Learn More

Datasheet

2In Stock

$181.50

$160.28

$150.10

$128.22

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 6A 5K D-TRIP

5SY43068
Siemens
1: $197.44
5In Stock

Mfr. Part #
5SY43068

Mouser Part #
982-5SY43068

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 6A 5K D-TRIP

Learn More

Datasheet

5In Stock

$197.44

$172.93

$150.65

$128.22

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 10A 5K C-TRIP

5SY43107
Siemens
1: $179.95
4In Stock

Mfr. Part #
5SY43107

Mouser Part #
982-5SY43107

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 10A 5K C-TRIP

Learn More

Datasheet

4In Stock

$179.95

$159.01

$149.07

$128.22

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 10A 5K D-TRIP

5SY43108
Siemens
1: $197.44
1In Stock

Mfr. Part #
5SY43108

Mouser Part #
982-5SY43108

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 10A 5K D-TRIP

Learn More

Datasheet

1In Stock

$197.44

$161.98

$150.65

$128.22

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 16A 5K D-TRIP

5SY43168
Siemens
1: $168.75
3In Stock

Mfr. Part #
5SY43168

Mouser Part #
982-5SY43168

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 16A 5K D-TRIP

Learn More

Datasheet

3In Stock

$168.75

$153.14

$142.92

$128.09

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 15A 5K C-TRIP

5SY43187
Siemens
1: $192.96
5In Stock

Mfr. Part #
5SY43187

Mouser Part #
982-5SY43187

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 15A 5K C-TRIP

Learn More

Datasheet

5In Stock

$192.96

$172.93

$165.38

$153.22

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

15 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 20A 5K B-TRIP

5SY43206
Siemens
1: $192.96
5In Stock

Mfr. Part #
5SY43206

Mouser Part #
982-5SY43206

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 20A 5K B-TRIP

Learn More

Datasheet

5In Stock

$192.96

$172.67

$165.38

$153.22

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers MINI CIRCUIT BREAKER_20A_400V

5SY43207
Siemens
1: $197.44
5In Stock

Mfr. Part #
5SY43207

Mouser Part #
982-5SY43207

Siemens

Circuit Breakers MINI CIRCUIT BREAKER_20A_400V

Learn More

Datasheet

5In Stock

$197.44

$172.93

$150.65

$128.22

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43257
Siemens
1: $192.96
4In Stock

Mfr. Part #
5SY43257

Mouser Part #
982-5SY43257

Siemens

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

Learn More

Datasheet

4In Stock

$192.96

$172.67

$165.38

$153.23

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43258
Siemens
1: $197.44
5In Stock

Mfr. Part #
5SY43258

Mouser Part #
982-5SY43258

Siemens

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

Learn More

Datasheet

5In Stock

$197.44

$172.93

$150.65

$128.22

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

3 Pole

- 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