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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Type	Current Rating	Voltage Rating AC	Voltage Rating DC	Number of Poles	Actuator	Minimum Operating Temperature	Maximum Operating Temperature	Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 2A 10K C-TRIP 5SJ41027HG42 Siemens 1: £63.35 16In Stock	Mfr. Part No. 5SJ41027HG42 Mouser Part No 982-5SJ41027HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 2A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	16In Stock	£63.35 £53.85 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	2 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 2A 10K D-TRIP 5SJ41028HG42 Siemens 1: £63.35 5In Stock	Mfr. Part No. 5SJ41028HG42 Mouser Part No 982-5SJ41028HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 2A 10K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	5In Stock	£63.35 £50.55 £47.22 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	2 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 3A SAME PH 14K C-TRIP 5SJ41037HG40 Siemens 1: £58.48 15In Stock	Mfr. Part No. 5SJ41037HG40 Mouser Part No 982-5SJ41037HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 3A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	15In Stock	£58.48 £49.29 £45.77 £37.30 View £34.88 £33.99 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	3 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 3A 14K C-TRIP 5SJ41037HG41 Siemens 1: £63.35 5In Stock	Mfr. Part No. 5SJ41037HG41 Mouser Part No 982-5SJ41037HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 3A 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	5In Stock	£63.35 £53.85 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	3 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 3A 10K C-TRIP 5SJ41037HG42 Siemens 1: £63.35 13In Stock	Mfr. Part No. 5SJ41037HG42 Mouser Part No 982-5SJ41037HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 3A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	13In Stock	£63.35 £53.76 £50.93 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	3 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 4A SAME PH 14K C-TRIP 5SJ41047HG40 Siemens 1: £52.68 12In Stock	Mfr. Part No. 5SJ41047HG40 Mouser Part No 982-5SJ41047HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 4A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	12In Stock	£52.68 £49.29 £45.77 £36.92 View £34.68 £33.28 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	4 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 4A 14K C-TRIP 5SJ41047HG41 Siemens 1: £63.35 4In Stock	Mfr. Part No. 5SJ41047HG41 Mouser Part No 982-5SJ41047HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 4A 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	4In Stock	£63.35 £53.85 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	4 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 4A 10K C-TRIP 5SJ41047HG42 Siemens 1: £63.35 3In Stock 4Expected 05/10/2026	Mfr. Part No. 5SJ41047HG42 Mouser Part No 982-5SJ41047HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 4A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	3In Stock 4Expected 05/10/2026	£63.35 £53.85 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	4 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 4A 10K D-TRIP 5SJ41048HG42 Siemens 1: £63.35 10In Stock	Mfr. Part No. 5SJ41048HG42 Mouser Part No 982-5SJ41048HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 4A 10K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	10In Stock	£63.35 £55.05 £50.93 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	4 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K C-TRIP 5SJ41067HG40 Siemens 1: £58.48 1In Stock 7Expected 14/10/2026	Mfr. Part No. 5SJ41067HG40 Mouser Part No 982-5SJ41067HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	1In Stock 7Expected 14/10/2026	£58.48 £49.29 £45.77 £37.30 View £34.88 £33.99 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	6 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 6A 10K C-TRIP 5SJ41067HG42 Siemens 1: £62.57 12In Stock	Mfr. Part No. 5SJ41067HG42 Mouser Part No 982-5SJ41067HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 6A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	12In Stock	£62.57 £57.72 £50.91 £41.18 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	6 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 6A 10K D-TRIP 5SJ41068HG42 Siemens 1: £63.35 4In Stock	Mfr. Part No. 5SJ41068HG42 Mouser Part No 982-5SJ41068HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 6A 10K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	4In Stock	£63.35 £50.55 £47.22 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	6 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 8A SAME PH 14K C-TRIP 5SJ41087HG40 Siemens 1: £58.48 9In Stock	Mfr. Part No. 5SJ41087HG40 Mouser Part No 982-5SJ41087HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 8A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	9In Stock	£58.48 £50.63 £43.17 £37.30 View £34.88 £33.98 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	8 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 8A 14K C-TRIP 5SJ41087HG41 Siemens 1: £63.35 4In Stock	Mfr. Part No. 5SJ41087HG41 Mouser Part No 982-5SJ41087HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 8A 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	4In Stock	£63.35 £53.85 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	8 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 8A 10K C-TRIP 5SJ41087HG42 Siemens 1: £63.35 5In Stock	Mfr. Part No. 5SJ41087HG42 Mouser Part No 982-5SJ41087HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 8A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	5In Stock	£63.35 £53.76 £47.22 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	8 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 10A SAME PH 14K B-TRIP 5SJ41106HG40 Siemens 1: £58.48 6In Stock 5On Order	Mfr. Part No. 5SJ41106HG40 Mouser Part No 982-5SJ41106HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 10A SAME PH 14K B-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	6In Stock 5On Order On Order Ship Dates Mfr. No: 5SJ41106HG40 Stock: 6 Can Dispatch Immediately On Order: 1 Expected 09/10/2026 4 Expected 14/10/2026 Factory Lead Time: 5 Weeks	£58.48 £49.29 £45.77 £37.30 View £34.88 £33.99 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	10 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 10A 14K C-TRIP 5SJ41107HG41 Siemens 1: £57.18 10In Stock	Mfr. Part No. 5SJ41107HG41 Mouser Part No 982-5SJ41107HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 10A 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	10In Stock	£57.18 £49.80 £46.60 £40.34 View £37.89 £37.45 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	10 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 10A 10K C-TRIP 5SJ41107HG42 Siemens 1: £63.35 6In Stock	Mfr. Part No. 5SJ41107HG42 Mouser Part No 982-5SJ41107HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 10A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	6In Stock	£63.35 £53.85 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	10 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 10A SAME PH 14K D-TRIP 5SJ41108HG40 Siemens 1: £58.48 4In Stock 1Expected 18/11/2026	Mfr. Part No. 5SJ41108HG40 Mouser Part No 982-5SJ41108HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 10A SAME PH 14K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	4In Stock 1Expected 18/11/2026	£58.48 £46.21 £43.17 £37.30 View £34.88 £33.98 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	10 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 10A 14K D-TRIP 5SJ41108HG41 Siemens 1: £57.71 12In Stock 14Expected 13/11/2026	Mfr. Part No. 5SJ41108HG41 Mouser Part No 982-5SJ41108HG41	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 10A 14K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	12In Stock 14Expected 13/11/2026	£57.71 £55.05 £50.77 £40.64 View £37.92 £37.66 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	10 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 10A 10K D-TRIP 5SJ41108HG42 Siemens 1: £63.35 1In Stock	Mfr. Part No. 5SJ41108HG42 Mouser Part No 982-5SJ41108HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 10A 10K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	1In Stock	£63.35 £50.55 £47.22 £40.80 £37.92	Min.: 1 Mult.: 1		Circuit Breakers	Miniature	10 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 240V 5A SAME PH 14K C-TRIP 5SJ41117HG40 Siemens 1: £58.48 17In Stock	Mfr. Part No. 5SJ41117HG40 Mouser Part No 982-5SJ41117HG40	Siemens	Circuit Breakers MCB 5SJ4 1P 240V 5A SAME PH 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	17In Stock	£58.48 £49.29 £45.77 £37.30 View £34.88 £33.99 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	5 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 1P 240V 5A 14K C-TRIP 5SJ41117HG41 Siemens 1: £57.18 9In Stock	Mfr. Part No. 5SJ41117HG41 Mouser Part No 982-5SJ41117HG41	Siemens	Circuit Breakers MCB 1P 240V 5A 14K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	9In Stock	£57.18 £53.76 £46.60 £40.34 View £37.89 £37.44 Quote	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	5 A	240 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 5A 10K C-TRIP 5SJ41117HG42 Siemens 1: £63.14 11In Stock	Mfr. Part No. 5SJ41117HG42 Mouser Part No 982-5SJ41117HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 5A 10K C-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	11In Stock	£63.14 £53.76 £49.77 £40.80 £37.92	Min.: 1 Mult.: 1	5SJ4	Circuit Breakers	Miniature	5 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 5A 10K D-TRIP 5SJ41118HG42 Siemens 1: £63.35 5In Stock	Mfr. Part No. 5SJ41118HG42 Mouser Part No 982-5SJ41118HG42	Siemens	Circuit Breakers MCB 5SJ4 1P 277V 5A 10K D-TRIP Learn More about Siemens 5sj4 mini circuit breakers	Datasheet	5In Stock	£63.35 £53.76 £47.22 £40.80 £37.92	Min.: 1 Mult.: 1		Circuit Breakers	Miniature	5 A	277 VAC	60 VDC	1 Pole	Lever	- 25 C	+ 55 C	Non-Illuminated

5SJ4 Miniature Circuit Breakers

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300 mA
500 mA
1 A
1.6 A
2 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
40 A