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Siemens 5SJ4314-8HG42 — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SJ4314-8HG42 MCB, 3P D 0.3A 10kA

MPN5SJ4314-8HG42
Active

Siemens SENTRON 5SJ4314-8HG42, miniature circuit breaker, 3-pole, D-curve, 0.3 A, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, DIN rail mount.

Siemens 5SJ4314-8HG42 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4314-8HG42 — Identification
ParameterValue
Design / model code5SJ4
Brand nameSENTRON
Number of poles3
Suitability for operationMechanical engineering / industry
5SJ4314-8HG42 — Protection
ParameterValue
Tripping characteristic (curve)D
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
5SJ4314-8HG42 — Electrical
ParameterValue
Rated frequency50 Hz
5SJ4314-8HG42 — Mechanical
ParameterValue
Mounting positionany
Width54 mm
Height121 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SJ4314-8HG42 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% humidity

Product details

The Siemens SENTRON 5SJ4314-8HG42 is a 3-pole miniature circuit breaker with a D tripping characteristic, rated at 0.3 A and 400 V AC.

Panel fit & integration

Installation depth is 70 mm. IP20 with conductors connected, IP40 in the handle range — fine for enclosed panels; keep the gland plate sealed if washdown is nearby. Terminal torque spec: 3.5 Nm for Cu conductors rated 60/75 °C.

Both are rated for 400 V AC, and the D-curve's magnetic trip threshold (10–20× In) handles motor inrush without dropping the line.

Frequently asked questions

Where can I buy 5SJ4314-8HG42 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ and we'll get you a firm number.

What is the breaking capacity of 5SJ4314-8HG42?

It is rated 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC, giving you two certified fault-interruption levels depending on the standard your panel must meet.

What compliance documentation does Siemens provide for 5SJ4314-8HG42?

The part is designed to EN 60898 and IEC 60947-2, carries an overvoltage category of 3, and is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations are available from Siemens on request.

MPN
5SJ4314-8HG42