Circuit Breakers – Mouser Finland

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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: 115,49 €
3In Stock

Mfr. Part No.
5SY42106

Mouser Part No
982-5SY42106

Siemens

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

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Datasheet

3In Stock

115,49 €

111,06 €

106,11 €

98,68 €

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: 115,47 €
6In Stock

Mfr. Part No.
5SY42108

Mouser Part No
982-5SY42108

Siemens

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

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Datasheet

6In Stock

115,47 €

99,45 €

92,60 €

76,56 €

71,14 €

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: 107,87 €
6In Stock

Mfr. Part No.
5SY42117

Mouser Part No
982-5SY42117

Siemens

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

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Datasheet

6In Stock

107,87 €

102,43 €

87,78 €

75,54 €

71,14 €

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: 119,47 €
5In Stock

Mfr. Part No.
5SY42137

Mouser Part No
982-5SY42137

Siemens

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

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Datasheet

5In Stock

119,47 €

103,39 €

96,10 €

92,28 €

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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: 115,49 €
5In Stock

Mfr. Part No.
5SY42166

Mouser Part No
982-5SY42166

Siemens

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

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Datasheet

5In Stock

115,49 €

99,47 €

96,46 €

89,30 €

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: 119,45 €
4In Stock

Mfr. Part No.
5SY42167

Mouser Part No
982-5SY42167

Siemens

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

Learn More

Datasheet

4In Stock

119,45 €

100,42 €

90,19 €

76,56 €

71,14 €

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: 119,00 €
3In Stock

Mfr. Part No.
5SY42168

Mouser Part No
982-5SY42168

Siemens

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

Learn More

Datasheet

3In Stock

119,00 €

98,62 €

90,92 €

75,14 €

71,14 €

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: 117,99 €
3In Stock
3Expected 18/09/2026

Mfr. Part No.
5SY42187

Mouser Part No
982-5SY42187

Siemens

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

Learn More

Datasheet

3In Stock

3Expected 18/09/2026

117,99 €

94,29 €

87,69 €

75,76 €

71,14 €

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: 117,99 €
14In Stock

Mfr. Part No.
5SY42207

Mouser Part No
982-5SY42207

Siemens

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

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Datasheet

14In Stock

117,99 €

99,47 €

93,94 €

75,76 €

71,14 €

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: 115,49 €
5In Stock

Mfr. Part No.
5SY42257

Mouser Part No
982-5SY42257

Siemens

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

Learn More

Datasheet

5In Stock

115,49 €

99,47 €

96,46 €

89,30 €

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: 115,49 €
1In Stock

Mfr. Part No.
5SY42258

Mouser Part No
982-5SY42258

Siemens

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

Learn More

Datasheet

1In Stock

115,49 €

100,65 €

96,46 €

89,30 €

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: 117,99 €
4In Stock

Mfr. Part No.
5SY42407

Mouser Part No
982-5SY42407

Siemens

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

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Datasheet

4In Stock

117,99 €

94,29 €

87,69 €

75,76 €

71,14 €

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: 165,95 €
5In Stock

Mfr. Part No.
5SY43027

Mouser Part No
982-5SY43027

Siemens

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

Learn More

Datasheet

5In Stock

165,95 €

148,72 €

142,23 €

131,78 €

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: 165,95 €
5In Stock

Mfr. Part No.
5SY43047

Mouser Part No
982-5SY43047

Siemens

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

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Datasheet

5In Stock

165,95 €

148,72 €

142,23 €

131,78 €

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: 171,93 €
6In Stock

Mfr. Part No.
5SY43055

Mouser Part No
982-5SY43055

Siemens

Circuit Breakers MINIATURE CIRCUIT BREAKER 400V

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Datasheet

6In Stock

171,93 €

144,75 €

130,01 €

109,70 €

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: 156,09 €
2In Stock

Mfr. Part No.
5SY43067

Mouser Part No
982-5SY43067

Siemens

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

Learn More

Datasheet

2In Stock

156,09 €

137,84 €

129,09 €

110,27 €

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: 169,80 €
5In Stock

Mfr. Part No.
5SY43068

Mouser Part No
982-5SY43068

Siemens

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

Learn More

Datasheet

5In Stock

169,80 €

148,72 €

129,56 €

110,27 €

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: 154,76 €
4In Stock

Mfr. Part No.
5SY43107

Mouser Part No
982-5SY43107

Siemens

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

Learn More

Datasheet

4In Stock

154,76 €

136,75 €

128,20 €

110,27 €

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: 169,80 €
1In Stock

Mfr. Part No.
5SY43108

Mouser Part No
982-5SY43108

Siemens

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

Learn More

Datasheet

1In Stock

169,80 €

139,30 €

129,56 €

110,27 €

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: 145,13 €
3In Stock

Mfr. Part No.
5SY43168

Mouser Part No
982-5SY43168

Siemens

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

Learn More

Datasheet

3In Stock

145,13 €

131,70 €

122,91 €

110,16 €

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: 165,95 €
5In Stock

Mfr. Part No.
5SY43187

Mouser Part No
982-5SY43187

Siemens

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

Learn More

Datasheet

5In Stock

165,95 €

148,72 €

142,23 €

131,77 €

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: 165,95 €
5In Stock

Mfr. Part No.
5SY43206

Mouser Part No
982-5SY43206

Siemens

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

Learn More

Datasheet

5In Stock

165,95 €

148,50 €

142,23 €

131,77 €

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: 169,80 €
5In Stock

Mfr. Part No.
5SY43207

Mouser Part No
982-5SY43207

Siemens

Circuit Breakers MINI CIRCUIT BREAKER_20A_400V

Learn More

Datasheet

5In Stock

169,80 €

148,72 €

129,56 €

110,27 €

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: 165,95 €
4In Stock

Mfr. Part No.
5SY43257

Mouser Part No
982-5SY43257

Siemens

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

Learn More

Datasheet

4In Stock

165,95 €

148,50 €

142,23 €

131,78 €

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: 169,80 €
5In Stock

Mfr. Part No.
5SY43258

Mouser Part No
982-5SY43258

Siemens

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

Learn More

Datasheet

5In Stock

169,80 €

148,72 €

129,56 €

110,27 €

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