Circuit Breakers – Mouser Japan

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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 A-TRIP

5SY42105
Siemens
1: ¥23,858.6
6In Stock

Mfr. Part #
5SY42105

Mouser Part #
982-5SY42105

Siemens

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

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Datasheet

6In Stock

¥23,858.6

¥18,629.8

¥17,247.8

¥16,784.4

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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 2P 480V 10A 5K B-TRIP

5SY42106
Siemens
1: ¥22,305.6
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

¥22,305.6

¥21,488.4

¥20,995

¥19,746

View

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 2P 480V 10A 5K D-TRIP

5SY42108
Siemens
1: ¥23,089.6
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

¥23,089.6

¥21,000

¥17,884

¥14,786.2

¥13,610.2

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 2P 480V 13A 5K C-TRIP

5SY42137
Siemens
1: ¥20,116.4
1In Stock
4On Order

Mfr. Part #
5SY42137

Mouser Part #
982-5SY42137

Siemens

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

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Datasheet

1In Stock

4On Order

¥20,116.4

¥19,752.6

¥18,691.2

¥17,530.2

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

13 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42166
Siemens
1: ¥22,305.6
5In Stock

Mfr. Part #
5SY42166

Mouser Part #
982-5SY42166

Siemens

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

Learn More

Datasheet

5In Stock

¥22,305.6

¥19,211.1

¥18,629.8

¥17,247.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42167
Siemens
1: ¥23,071.3
4In Stock

Mfr. Part #
5SY42167

Mouser Part #
982-5SY42167

Siemens

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

Learn More

Datasheet

4In Stock

¥23,071.3

¥19,395.5

¥17,418.9

¥14,786.2

¥13,610.2

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42168
Siemens
1: ¥22,983.3
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

¥22,983.3

¥19,048.3

¥17,560.1

¥14,512.2

¥13,518.9

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42187
Siemens
1: ¥22,788.9
2In Stock
6Expected 8/6/2026

Mfr. Part #
5SY42187

Mouser Part #
982-5SY42187

Siemens

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

Learn More

Datasheet

2In Stock

6Expected 8/6/2026

¥22,788.9

¥18,211.2

¥16,935.6

¥14,631.7

¥13,610.2

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

15 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42207
Siemens
1: ¥22,611.2
15In Stock

Mfr. Part #
5SY42207

Mouser Part #
982-5SY42207

Siemens

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

Learn More

Datasheet

15In Stock

¥22,611.2

¥19,395.5

¥17,139.9

¥14,786.2

¥13,610.2

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42257
Siemens
1: ¥20,393.8
5In Stock

Mfr. Part #
5SY42257

Mouser Part #
982-5SY42257

Siemens

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

Learn More

Datasheet

5In Stock

¥20,393.8

¥19,372.2

¥18,671.3

¥18,036.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY42258
Siemens
1: ¥22,302.2
1In Stock

Mfr. Part #
5SY42258

Mouser Part #
982-5SY42258

Siemens

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

Learn More

Datasheet

1In Stock

¥22,302.2

¥19,372.2

¥18,671.3

¥18,036.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

2 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43027
Siemens
1: ¥32,050.7
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

¥32,050.7

¥28,723.7

¥27,469.6

¥25,451.5

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

2 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43047
Siemens
1: ¥33,160.2
3In Stock
2Expected 9/14/2026

Mfr. Part #
5SY43047

Mouser Part #
982-5SY43047

Siemens

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

Learn More

Datasheet

3In Stock

2Expected 9/14/2026

¥33,160.2

¥29,356.5

¥27,755.3

¥26,308.6

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers MINIATURE CIRCUIT BREAKER 400V

5SY43055
Siemens
1: ¥33,206.7
6In Stock

Mfr. Part #
5SY43055

Mouser Part #
982-5SY43055

Siemens

Circuit Breakers MINIATURE CIRCUIT BREAKER 400V

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Datasheet

6In Stock

¥33,206.7

¥27,956.3

¥25,109.3

¥21,187.7

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

500 mA

400 VAC

72 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43067
Siemens
1: ¥29,766.8
5In Stock

Mfr. Part #
5SY43067

Mouser Part #
982-5SY43067

Siemens

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

Learn More

Datasheet

5In Stock

¥29,766.8

¥27,949.6

¥25,767.1

¥21,187.7

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43068
Siemens
1: ¥33,087.1
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

¥33,087.1

¥27,956.3

¥25,772.1

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43107
Siemens
1: ¥28,712
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

¥28,712

¥25,772.1

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43108
Siemens
1: ¥32,839.6
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

¥32,839.6

¥27,506.2

¥25,378.4

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43167
Siemens
1: ¥32,839.6
5In Stock

Mfr. Part #
5SY43167

Mouser Part #
982-5SY43167

Siemens

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

Learn More

Datasheet

5In Stock

¥32,839.6

¥28,723.7

¥25,378.4

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43168
Siemens
1: ¥28,029.4
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

¥28,029.4

¥25,436.6

¥23,739

¥21,275.7

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43187
Siemens
1: ¥32,050.7
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

¥32,050.7

¥28,723.7

¥27,469.6

¥25,449.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

15 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43206
Siemens
1: ¥32,050.7
2In Stock
3On Order

Mfr. Part #
5SY43206

Mouser Part #
982-5SY43206

Siemens

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

Learn More

Datasheet

2In Stock

3On Order

¥32,050.7

¥28,680.5

¥27,469.6

¥25,449.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers MINI CIRCUIT BREAKER_20A_400V

5SY43207
Siemens
1: ¥32,794.8
2In Stock
3Expected 8/4/2026

Mfr. Part #
5SY43207

Mouser Part #
982-5SY43207

Siemens

Circuit Breakers MINI CIRCUIT BREAKER_20A_400V

Learn More

Datasheet

2In Stock

3Expected 8/4/2026

¥32,794.8

¥26,904.9

¥25,023

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43257
Siemens
1: ¥32,047.3
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

¥32,047.3

¥28,720.4

¥27,399.9

¥26,449.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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

5SY43258
Siemens
1: ¥32,794.8
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

¥32,794.8

¥28,723.7

¥25,023

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

25 A

400 VAC

60 VDC

3 Pole

Lever

- 40 C

+ 70 C

Non-Illuminated

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