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Siemens 5SJ4225-7HG42 — 2-Pole MCB (DIN Rail)

Siemens 5SJ4225-7HG42 SENTRON MCB, C-Curve, 2-Pole, 400V AC

MPN5SJ4225-7HG42
Active

Siemens SENTRON 5SJ4 series, miniature circuit breaker, 2-pole, C-curve, 400 V AC / 60 V DC rated, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 36 mm wide, 70 mm deep, IP20.

$76.20Ref. price · indicative, final on quote
Siemens 5SJ4225-7HG42 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4225-7HG42 — Identification
ParameterValue
Product designationMiniature circuit breakers
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SJ4225-7HG42 — Electrical
ParameterValue
Number of poles2
5SJ4225-7HG42 — Protection
ParameterValue
Tripping characteristic classC
Overvoltage category3
5SJ4225-7HG42 — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height121 mm
Depth70 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors, IP 40 in the handle range
5SJ4225-7HG42 — Environmental
ParameterValue
Pollution degree3
5SJ4225-7HG42 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value10 kA

Product details

What this 2-pole C-curve MCB is for

Its C-curve tripping characteristic means it holds through moderate inrush — typical for motor-starter feeders, small transformers, and contactor coils — before tripping at 5–10× rated current. Rated 400 V AC and 60 V DC, it fits standard 230/400 V three-phase panels and DC control circuits up to 60 V. The 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 cover most commercial and light industrial fault levels; the higher IEC figure applies when the breaker is used in industrial distribution per 60947-2.

Frequently asked questions

Where can I buy 5SJ4225-7HG42 and get a price?

The 5SJ4225-7HG42 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote.

What is the closest functional second-source for 5SJ4225-7HG42?

The Siemens 5SY4 series is the closest functional peer — same C-curve, 2-pole, same 10 kA (EN 60898) / 15 kA (IEC 60947-2) ratings, and identical 36 mm width and 70 mm depth. It drops into a panel designed for the 5SJ4 without rewiring or DIN-rail changes.

What is the depth and width of 5SJ4225-7HG42?

Depth is 70 mm, width is 36 mm — 2 modular units. Height is 121 mm.

Will 5SJ4225-7HG42 drop into a panel specified around 5SY4304-7CV?

Yes. Both are 2-pole C-curve MCBs with the same 36 mm width and 70 mm depth, so the 5SJ4225-7HG42 mounts on the same DIN rail and occupies the same panel space without rewiring.

MPN
5SJ4225-7HG42