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Siemens 5SJ4310-7HG42 — 3-Pole MCB (DIN Rail)

Siemens 5SJ4310-7HG42 SENTRON MCB, 3-Pole C-Curve, 10 kA

MPN5SJ4310-7HG42
Active

Siemens SENTRON 5SJ4 series, 5SJ4310-7HG42 miniature circuit breaker, 3-pole, C tripping characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 60 V DC, 70 mm depth, 3 MW units.

$107.95Ref. price · indicative, final on quote
Siemens 5SJ4310-7HG42 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4310-7HG42 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SJ4310-7HG42 — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 6089810 kA
Breaking capacity per IEC 60947-215 kA
Overvoltage category3
IP protection classIP20, with connected conductors, IP 40 in the handle range
Pollution degree3
5SJ4310-7HG42 — Electrical
ParameterValue
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)1.4 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
5SJ4310-7HG42 — Mechanical
ParameterValue
Modular width units3
Mounting positionany
Width54 mm
Height121 mm
Depth70 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Combined terminal, topYes
Combined terminal, bottomYes
Fastening methodon standard mounting rail
SealableYes
Accepts supplementary devicesYes
5SJ4310-7HG42 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Vibration resistance (IEC 60068-2-6)±1 mm at 5 to 25 Hz; 50 m/s² at 25 to 150 Hz

Product details

Siemens 5SJ4310-7HG42 — 3-Pole C-Curve MCB for Standard Panel Duty

The C characteristic (5–10× In magnetic trip) suits mixed resistive-inductive loads like motor starters, contactor coils, and lighting banks where inrush is moderate.

Operating temperature range -40 to 75 °C, with 95% humidity max. Vibration tested to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4 sec).

Sourcing and Cross-Reference

The 5SJ4310-7HG42 is an active SENTRON 5SJ4 series part. For a BOM freeze or second-source gate, the closest functional peer within the same manufacturer is the 5SY4140-7 — same 3-pole C-curve form factor, same 3 MW units, but check the specific breaking capacity and voltage ratings against your application before substituting. No rewiring required for the panel footprint.

Frequently asked questions

What are the key ratings of 5SJ4310-7HG42?

3-pole, C-curve, 400 V AC / 60 V DC max, 10 kA per EN 60898, 15 kA per IEC 60947-2. Occupies 3 modular width units at 54 mm wide, 70 mm deep.

Will 5SJ4310-7HG42 drop into a panel specified around 5SY4140-7?

Yes, both are 3-pole C-curve MCBs occupying 3 modular width units on standard DIN rail, so the physical fit and wiring are identical. Verify the breaking capacity and voltage ratings match your application before substitution.

Where can I buy 5SJ4310-7HG42?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer.

MPN
5SJ4310-7HG42