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Siemens 5SJ4330-8HG42 — 3-Pole MCB (DIN Rail)

Siemens 5SJ4330-8HG42 Miniature Circuit Breaker, 3P D-Curve

MPN5SJ4330-8HG42
Active

Siemens SENTRON 5SJ4330-8HG42, 3-pole D-curve miniature circuit breaker, 10kA EN 60898 / 15kA IEC 60947-2, AC 400V, 70mm depth, DIN rail mount.

$345.58Ref. price · indicative, final on quote
Siemens 5SJ4330-8HG42 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4330-8HG42 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SJ4330-8HG42 — 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
Pollution degree3
5SJ4330-8HG42 — Electrical
ParameterValue
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)3.2 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
5SJ4330-8HG42 — 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
5SJ4330-8HG42 — 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

Panel-fit notes

The 5SJ4330-8HG42: D-curve trips between 10x and 20x In, purpose-sized for motor and transformer inrush – it avoids nuisance tripping on startup surge without delaying the short-circuit clearance time materially.

DIN-rail mounting & space

Terminals – combined top and bottom – accept Cu conductors up to the 3.5 Nm torque spec. No separate neutral switch; uses the busbar for shared neutral on 3-phase circuits.

Environment & vibration

Rated –40 to 75 °C ambient, so it can sit in an unconditioned roof space or a freezer plant without derating. Vibration resistance of 50 m/s² (25–150 Hz) and 60 m/s² (35 Hz, 4 sec) covers most rotating machinery floors. IP20 with conductors connected, IP40 in the handle area – sufficient for panel interiors; a separate door seal isn't needed.

Frequently asked questions

What terminal type does it use?

Combined terminals top and bottom (tunnel terminals not fitted); torque to 3.5 Nm for Cu conductors.

What is the operating temperature range?

–40 °C to +75 °C ambient.

MPN
5SJ4330-8HG42