Siemens 5SJ4302-7HG41 is a 3-pole C-curve MCB, rated 10 kA and 15 kA at 400 V AC, 60 V DC max. Operating range -40 °C to 75 °C.
Mounting & panel fit
Three modular width units (54 mm) on DIN rail, depth 70 mm. Any mounting position. Combined (tunnel/screw) terminals top and bottom; torque 3.5 Nm. IP20 (conductors connected) / IP40 (handle zone).
Compliance & environmental construction
Halogen- and silicon-free construction reduces outgassing and corrosion risk in sensitive process environments — relevant for petrochemical panel retrofits. The housing is sealable (lockable handle option). Overvoltage category III and pollution degree 3 keep it suited for industrial distribution boards. Vibration resistance tested to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz.