BOM / RFQ

Siemens 5SJ4302-8HG42 — 3-Pole MCB (DIN Rail)

Siemens 5SJ4302-8HG42 MCB, 3-pole D-curve 2A

MPN5SJ4302-8HG42

Active

Siemens SENTRON 5SJ4302-8HG42, 3-pole miniature circuit breaker, D-curve, 2 A, 54 mm width, active production.

$137.16 – $326.69Ref. price · indicative, final on quote

Add to RFQ

Siemens 5SJ4302-8HG42 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4302-8HG42 — Identification
Parameter	Value
Brand name	SENTRON
Number of poles	3
Pole configuration	3P
Suitability for operation	Mechanical engineering / industry

5SJ4302-8HG42 — Protection
Parameter	Value
Tripping characteristic (curve)	D
Breaking capacity per EN 60898	10 kA
Breaking capacity per IEC 60947-2	15 kA
Overvoltage category	3
IP protection class	IP20, with connected conductors, IP 40 in the handle range
Pollution degree	3

5SJ4302-8HG42 — Electrical
Parameter	Value
Supply frequency range	50/60 Hz
Power loss per pole at rated current (AC, hot)	1.8 W
Mechanical service life (operating cycles, typ.)	10 000
Neutral conductor switching	No

5SJ4302-8HG42 — Mechanical
Parameter	Value
Modular width units	3
Mounting position	any
Width	54 mm
Height	121 mm
Depth	70 mm
Installation depth	70 mm
Terminal tightening torque, max.	75 °C
Terminal tightening torque, min.	-40 °C
Combined terminal, top	Yes
Combined terminal, bottom	Yes
Fastening method	on standard mounting rail
Sealable	Yes
Accepts supplementary devices	Yes

5SJ4302-8HG42 — Environmental
Parameter	Value
Halogen-free	Yes
Silicone-free	Yes
Vibration resistance (IEC 60068-2-6)	±1 mm at 5 to 25 Hz; 50 m/s² at 25 to 150 Hz

Product details

The 5SJ4302-8HG42: Three-pole D-curve MCB rated 2 A, built for industrial control panels. 54 mm wide (3 modular units), clips onto standard DIN rail in any orientation. Halogen-free and silicon-free, sealable for panel lock-out.

Combined top and bottom terminals (no tunnel terminal needed). Tightening torque 3.5 Nm for copper conductors rated 60/75 °C. IP20 with conductors connected; IP40 in the handle area. Vibration resistance to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz for 4 s.