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Siemens 5SJ4230-8HG42 — 2-Pole MCB (DIN Rail)

Siemens 5SJ4230-8HG42 SENTRON MCB, 2-Pole, D-Curve, 10/15 kA

MPN5SJ4230-8HG42
Active

Siemens SENTRON 5SJ4230-8HG42, 2-pole miniature circuit breaker, D tripping characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 2 MW units, IP20/IP40.

$105.41Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4230-8HG42 — Identification
ParameterValue
Product designationMiniature circuit breakers
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SJ4230-8HG42 — Electrical
ParameterValue
Number of poles2
5SJ4230-8HG42 — Protection
ParameterValue
Tripping characteristic classD
Overvoltage category3
5SJ4230-8HG42 — 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
5SJ4230-8HG42 — Environmental
ParameterValue
Pollution degree3
5SJ4230-8HG42 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value10 kA

Product details

Rated 400 V AC / 60 V DC, it breaks 10 kA per EN 60898 and 15 kA per IEC 60947-2, so it handles fault currents up to those levels without upstream coordination issues. The D-curve means the magnetic trip is set at 10–20× rated current, avoiding nuisance trips on inductive starts.

Current production — no end-of-life notice.

Frequently asked questions

What is the depth of 5SJ4230-8HG42?

70 mm — this is the installation depth, so ensure the enclosure depth is at least 70 mm plus wiring clearance.

MPN
5SJ4230-8HG42