Circuit Breakers – Mouser United Kingdom

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5SJ4 Miniature Circuit Breakers

Siemens 5SJ4 Miniature Circuit Breakers come in 1-, 2- or 3-pole versions with 0.3A to 63A rated current. These 70mm mounting depth devices are smaller than traditional molded-case circuit breakers and feature identical wire screw connections on the line and load sides. Siemens 5SJ4 provides DIN rail mounting, an ON and OFF/Trip visible indicator, and EN50274 touch protection.

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Part #

Circuit Breakers MCB 5SJ4 2P 480/277 6A 10K C-TRIP

5SJ42067HG42
Siemens
1: £120.95
5In Stock

Mfr. Part No.
5SJ42067HG42

Mouser Part No
982-5SJ42067HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 6A 10K C-TRIP

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Datasheet

5In Stock

£120.95

£100.59

£92.40

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

6 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 8A 14K C-TRIP

5SJ42087HG41
Siemens
1: £109.53
5In Stock

Mfr. Part No.
5SJ42087HG41

Mouser Part No
982-5SJ42087HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 8A 14K C-TRIP

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Datasheet

5In Stock

£109.53

£101.39

£88.00

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

8 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 8A 10K D-TRIP

5SJ42088HG42
Siemens
1: £122.31
1In Stock

Mfr. Part No.
5SJ42088HG42

Mouser Part No
982-5SJ42088HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 8A 10K D-TRIP

Learn More

Datasheet

1In Stock

£122.31

£101.40

£93.49

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

8 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 10A 10K C-TRIP

5SJ42107HG42
Siemens
1: £122.30
5In Stock

Mfr. Part No.
5SJ42107HG42

Mouser Part No
982-5SJ42107HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 10A 10K C-TRIP

Learn More

Datasheet

5In Stock

£122.30

£101.39

£93.48

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

10 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers CB 5SJ4 2P 240V 10A 14K D-TRIP

5SJ42108HG41
Siemens
1: £121.48
1In Stock

Mfr. Part No.
5SJ42108HG41

Mouser Part No
982-5SJ42108HG41

Siemens

Circuit Breakers CB 5SJ4 2P 240V 10A 14K D-TRIP

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Datasheet

1In Stock

£121.48

£101.39

£93.48

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

10 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 10A 10K D-TRIP

5SJ42108HG42
Siemens
1: £121.70
3In Stock

Mfr. Part No.
5SJ42108HG42

Mouser Part No
982-5SJ42108HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 10A 10K D-TRIP

Learn More

Datasheet

3In Stock

£121.70

£95.86

£87.59

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

10 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1CB 5SJ4 2P 240V 5A 14K C-TRIP

5SJ42117HG41
Siemens
1: £120.96
9In Stock

Mfr. Part No.
5SJ42117HG41

Mouser Part No
982-5SJ42117HG41

Siemens

Circuit Breakers 1CB 5SJ4 2P 240V 5A 14K C-TRIP

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Datasheet

9In Stock

£120.96

£100.31

£89.32

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

5 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 5A 10K C-TRIP

5SJ42117HG42
Siemens
1: £122.31
3In Stock

Mfr. Part No.
5SJ42117HG42

Mouser Part No
982-5SJ42117HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 5A 10K C-TRIP

Learn More

Datasheet

3In Stock

£122.31

£101.39

£88.96

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

5 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 13A 14K C-TRIP

5SJ42137HG41
Siemens
1: £110.57
4In Stock

Mfr. Part No.
5SJ42137HG41

Mouser Part No
982-5SJ42137HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 13A 14K C-TRIP

Learn More

Datasheet

4In Stock

£110.57

£107.67

£106.03

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

13 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 13A 10K C-TRIP

5SJ42137HG42
Siemens
1: £121.48
2In Stock

Mfr. Part No.
5SJ42137HG42

Mouser Part No
982-5SJ42137HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 13A 10K C-TRIP

Learn More

Datasheet

2In Stock

£121.48

£97.29

£88.87

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

13 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 16A 14K C-TRIP

5SJ42167HG41
Siemens
1: £121.48
1In Stock
5Expected 09/03/2026

Mfr. Part No.
5SJ42167HG41

Mouser Part No
982-5SJ42167HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 16A 14K C-TRIP

Learn More

Datasheet

1In Stock

5Expected 09/03/2026

£121.48

£101.39

£93.48

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

16 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 16A 10K C-TRIP

5SJ42167HG42
Siemens
1: £121.70
6In Stock

Mfr. Part No.
5SJ42167HG42

Mouser Part No
982-5SJ42167HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 16A 10K C-TRIP

Learn More

Datasheet

6In Stock

£121.70

£107.86

£89.37

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

16 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 15A 14K D-TRIP

5SJ42188HG41
Siemens
1: £122.34
1In Stock

Mfr. Part No.
5SJ42188HG41

Mouser Part No
982-5SJ42188HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 15A 14K D-TRIP

Learn More

Datasheet

1In Stock

£122.34

£101.43

£93.52

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

15 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 15A 10K D-TRIP

5SJ42188HG42
Siemens
1: £122.31
5In Stock

Mfr. Part No.
5SJ42188HG42

Mouser Part No
982-5SJ42188HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 15A 10K D-TRIP

Learn More

Datasheet

5In Stock

£122.31

£107.86

£89.01

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

15 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 20A 10K C-TRIP

5SJ42207HG42
Siemens
1: £106.14
5In Stock

Mfr. Part No.
5SJ42207HG42

Mouser Part No
982-5SJ42207HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 20A 10K C-TRIP

Learn More

Datasheet

5In Stock

£106.14

£101.41

£93.50

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

20 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 20A 14K D-TRIP

5SJ42208HG41
Siemens
1: £122.27
1In Stock
5Expected 09/03/2026

Mfr. Part No.
5SJ42208HG41

Mouser Part No
982-5SJ42208HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 20A 14K D-TRIP

Learn More

Datasheet

1In Stock

5Expected 09/03/2026

£122.27

£96.89

£87.17

£77.30

£77.14

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

20 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 20A 10K D-TRIP

5SJ42208HG42
Siemens
1: £121.21
4In Stock

Mfr. Part No.
5SJ42208HG42

Mouser Part No
982-5SJ42208HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 20A 10K D-TRIP

Learn More

Datasheet

4In Stock

£121.21

£107.86

£87.59

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

20 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 480/277 25A 10K D-TRIP

5SJ42258HG42
Siemens
1: £122.27
1In Stock

Mfr. Part No.
5SJ42258HG42

Mouser Part No
982-5SJ42258HG42

Siemens

Circuit Breakers MCB 5SJ4 2P 480/277 25A 10K D-TRIP

Learn More

Datasheet

1In Stock

£122.27

£95.80

£87.53

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

25 A

277 VAC, 480 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 30A 14K C-TRIP

5SJ42307HG41
Siemens
1: £120.21
4In Stock
3Expected 13/03/2026

Mfr. Part No.
5SJ42307HG41

Mouser Part No
982-5SJ42307HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 30A 14K C-TRIP

Learn More

Datasheet

4In Stock

3Expected 13/03/2026

£120.21

£98.24

£88.46

£77.30

£77.14

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

30 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 2P 240V 30A 10K D-TRIP

5SJ42308HG41
Siemens
1: £119.57
2In Stock

Mfr. Part No.
5SJ42308HG41

Mouser Part No
982-5SJ42308HG41

Siemens

Circuit Breakers MCB 5SJ4 2P 240V 30A 10K D-TRIP

Learn More

Datasheet

2In Stock

£119.57

£110.29

£105.35

£103.35

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

30 A

240 VAC

60 VDC

2 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 480/277 1A 10K D-TRIP

5SJ43018HG42
Siemens
1: £186.52
3In Stock

Mfr. Part No.
5SJ43018HG42

Mouser Part No
982-5SJ43018HG42

Siemens

Circuit Breakers MCB 5SJ4 3P 480/277 1A 10K D-TRIP

Learn More

Datasheet

3In Stock

£186.52

£158.01

£155.87

£154.64

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

1 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers _MCB 5SJ4 3P 480/277 2A 10K C-TRIP

5SJ43027HG42
Siemens
1: £177.63
1In Stock

Mfr. Part No.
5SJ43027HG42

Mouser Part No
982-5SJ43027HG42

Siemens

Circuit Breakers _MCB 5SJ4 3P 480/277 2A 10K C-TRIP

Learn More

Datasheet

1In Stock

£177.63

£140.82

£132.74

£117.53

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

2 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 480/277 2A 10K D-TRIP

5SJ43028HG42
Siemens
1: £174.43
4In Stock

Mfr. Part No.
5SJ43028HG42

Mouser Part No
982-5SJ43028HG42

Siemens

Circuit Breakers MCB 5SJ4 3P 480/277 2A 10K D-TRIP

Learn More

Datasheet

4In Stock

£174.43

£138.66

£131.26

£117.53

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

2 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 480/277 3A 10K D-TRIP

5SJ43038HG42
Siemens
1: £178.84
5In Stock

Mfr. Part No.
5SJ43038HG42

Mouser Part No
982-5SJ43038HG42

Siemens

Circuit Breakers MCB 5SJ4 3P 480/277 3A 10K D-TRIP

Learn More

Datasheet

5In Stock

£178.84

£148.69

£137.07

£117.53

Min.: 1
Mult.: 1

5SJ4

Circuit Breaker

Miniature

3 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers MCB 5SJ4 3P 480/277 4A 10K C-TRIP

5SJ43047HG42
Siemens
1: £178.51
2In Stock

Mfr. Part No.
5SJ43047HG42

Mouser Part No
982-5SJ43047HG42

Siemens

Circuit Breakers MCB 5SJ4 3P 480/277 4A 10K C-TRIP

Learn More

Datasheet

2In Stock

£178.51

£159.14

£155.09

£152.50

View

Min.: 1
Mult.: 1

Circuit Breaker

Miniature

4 A

277 VAC, 480 VAC

60 VDC

3 Pole

Lever

- 25 C

+ 55 C

Non-Illuminated

5SJ4 Miniature Circuit Breakers

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