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 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

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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

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 30A 5K C-TRIP

5SY43307
Siemens
1: ¥32,794.8
5In Stock

Mfr. Part #
5SY43307

Mouser Part #
982-5SY43307

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 30A 5K C-TRIP

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Datasheet

5In Stock

¥32,794.8

¥28,723.7

¥25,023

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

30 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers SUP PTOR 5SY4 3P 480V 32A 5K C-TRIP

5SY43327
Siemens
1: ¥30,545.8
10In Stock

Mfr. Part #
5SY43327

Mouser Part #
982-5SY43327

Siemens

Circuit Breakers SUP PTOR 5SY4 3P 480V 32A 5K C-TRIP

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Datasheet

10In Stock

¥30,545.8

¥28,680.5

¥27,469.6

¥25,449.8

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

32 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43357
Siemens
1: ¥26,959.7
3In Stock

Mfr. Part #
5SY43357

Mouser Part #
982-5SY43357

Siemens

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

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Datasheet

3In Stock

¥26,959.7

¥26,390

¥24,478.2

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

35 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43407
Siemens
1: ¥32,794.8
5In Stock

Mfr. Part #
5SY43407

Mouser Part #
982-5SY43407

Siemens

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

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Datasheet

5In Stock

¥32,794.8

¥27,954.6

¥25,772.1

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

40 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43408
Siemens
1: ¥32,794.8
4In Stock

Mfr. Part #
5SY43408

Mouser Part #
982-5SY43408

Siemens

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

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Datasheet

4In Stock

¥32,794.8

¥26,904.9

¥25,023

¥21,297.3

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

40 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43508
Siemens
1: ¥38,236.2
5In Stock

Mfr. Part #
5SY43508

Mouser Part #
982-5SY43508

Siemens

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

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Datasheet

5In Stock

¥38,236.2

¥32,293.2

¥29,185.4

¥24,946.6

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

50 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43638
Siemens
1: ¥39,204.6
3In Stock

Mfr. Part #
5SY43638

Mouser Part #
982-5SY43638

Siemens

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

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Datasheet

3In Stock

¥39,204.6

¥32,612.1

¥29,937.9

¥24,544.6

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

63 A

400 VAC

60 VDC

3 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY44107
Siemens
1: ¥41,661.2
1In Stock

Mfr. Part #
5SY44107

Mouser Part #
982-5SY44107

Siemens

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

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Datasheet

1In Stock

¥41,661.2

¥36,394.2

¥34,397.6

¥32,615.4

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Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

400 VAC

60 VDC

4 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY44167
Siemens
1: ¥44,687.5
2In Stock

Mfr. Part #
5SY44167

Mouser Part #
982-5SY44167

Siemens

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

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Datasheet

2In Stock

¥44,687.5

¥36,394.2

¥34,397.6

¥32,615.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

4 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY45067
Siemens
1: ¥20,461.9
4In Stock

Mfr. Part #
5SY45067

Mouser Part #
982-5SY45067

Siemens

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

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Datasheet

4In Stock

¥20,461.9

¥17,169.8

¥15,995.4

¥12,930.9

¥12,176.8

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

230 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY45068
Siemens
1: ¥20,003.4
5In Stock

Mfr. Part #
5SY45068

Mouser Part #
982-5SY45068

Siemens

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

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Datasheet

5In Stock

¥20,003.4

¥16,992

¥16,433.9

¥15,412.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

6 A

230 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY45107
Siemens
1: ¥20,403.7
4In Stock

Mfr. Part #
5SY45107

Mouser Part #
982-5SY45107

Siemens

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

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Datasheet

4In Stock

¥20,403.7

¥17,264.4

¥16,548.5

¥15,322.7

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

10 A

230 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY45167
Siemens
1: ¥21,338.9
4In Stock

Mfr. Part #
5SY45167

Mouser Part #
982-5SY45167

Siemens

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

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Datasheet

4In Stock

¥21,338.9

¥16,992

¥16,548.5

¥15,322.7

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

230 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY45207
Siemens
1: ¥20,003.4
2In Stock

Mfr. Part #
5SY45207

Mouser Part #
982-5SY45207

Siemens

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

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Datasheet

2In Stock

¥20,003.4

¥17,264.4

¥16,548.5

¥15,322.7

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

230 VAC

60 VDC

2 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY46167
Siemens
1: ¥44,553
2In Stock

Mfr. Part #
5SY46167

Mouser Part #
982-5SY46167

Siemens

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

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Datasheet

2In Stock

¥44,553

¥36,277.9

¥34,288

¥32,510.8

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

16 A

400 VAC

60 VDC

4 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY41205
Siemens
1: ¥12,739.9
7Expected 9/14/2026

Mfr. Part #
5SY41205

Mouser Part #
982-5SY41205

Siemens

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

Learn More

Datasheet

7Expected 9/14/2026

¥12,739.9

¥10,172

¥9,879.6

¥9,165.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

20 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY43028
Siemens
1: ¥32,050.7
6Expected 8/31/2026

Mfr. Part #
5SY43028

Mouser Part #
982-5SY43028

Siemens

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

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Datasheet

6Expected 8/31/2026

¥32,050.7

¥28,680.5

¥27,469.6

¥25,449.8

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 1P 240V 1A 7.5K A-TRIP

5SY41015
Siemens
1: ¥11,235
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
5SY41015

Mouser Part #
982-5SY41015

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

¥11,235

¥10,265

¥9,879.6

¥9,165.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

1 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY41035
Siemens
1: ¥11,235
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
5SY41035

Mouser Part #
982-5SY41035

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥11,235

¥10,265

¥9,879.6

¥9,165.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

3 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

Circuit Breakers circuit breaker 10ka 1pole b3

5SY41036
Siemens
1: ¥11,485.8
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
5SY41036

Mouser Part #
982-5SY41036

Siemens

Circuit Breakers circuit breaker 10ka 1pole b3

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Datasheet

Non-Stocked Lead-Time 4 Weeks

¥11,485.8

¥8,838.2

¥8,285.1

¥7,119

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

3 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY41038
Siemens
1: ¥14,259.7
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
5SY41038

Mouser Part #
982-5SY41038

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥14,259.7

¥12,122

¥10,632.1

¥9,187

¥8,527.6

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

3 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY41045
Siemens
1: ¥11,236.7
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
5SY41045

Mouser Part #
982-5SY41045

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥11,236.7

¥10,265

¥9,879.6

¥9,165.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY41046
Siemens
1: ¥11,235
Non-Stocked Lead-Time 6 Weeks

Mfr. Part #
5SY41046

Mouser Part #
982-5SY41046

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 6 Weeks

¥11,235

¥10,265

¥9,879.6

¥9,165.4

View

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

1 Pole

- 40 C

+ 70 C

Non-Illuminated

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

5SY41048
Siemens
1: ¥13,219.9
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
5SY41048

Mouser Part #
982-5SY41048

Siemens

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

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥13,219.9

¥11,379.5

¥10,632.1

¥9,187

¥8,527.6

Min.: 1
Mult.: 1

Circuit Breakers

Miniature

4 A

400 VAC

60 VDC

1 Pole

- 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