The 5SJ4335-8HG41 is a Siemens SENTRON 5SJ4 miniature circuit breaker with a D tripping characteristic, rated 35 A at both 30 °C and 40 °C ambient. Derating is published: at 45 °C the rating drops to 34 A, at 50 °C to 33.3 A, at 55 °C to 32.4 A, and at 60 °C to 31.5 A. Snap-on mounting to standard DIN rail (35 mm), any orientation. The 3-module-wide footprint (54 mm) and 70 mm depth fit standard distribution boards. IP20 with conductors connected; IP40 in the handle area — suitable for enclosed panel use, not open washdown.
Halogen-free and silicon-free construction, sealable, with touch protection. Vibration resistance tested to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4 s) — passes survey for machinery and marine auxiliary panels where the class society expects a vibration profile.