The Siemens 5SJ4135-7HG41 is a single-pole SENTRON miniature circuit breaker with a C characteristic, rated 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2. Its 18 mm width (one modular unit) and 70 mm depth keep the layout compact, and the combined terminals top and bottom accept copper conductors up to a 3.5 Nm torque spec, which is typical for solid or stranded wire up to 16 mm² or so in this class.
If your panel sees humidity up to 95% non-condensing, this part handles that too. It's rated for 400 V AC and 60 V DC, with an overvoltage category 3 and pollution degree 3 — that's the standard industrial environment where you've got some dust and transient surges from nearby contactors or drives. The 10 kA rating per EN 60898 (15 kA per IEC 60947-2) tells you it can clear a fault on a typical 400 V distribution board where the prospective short-circuit current doesn't exceed those numbers. For most motor-control panels or conveyor feeders, that's enough headroom.
The vibration resistance (50 m/s² at 25–150 Hz, 60 m/s² at 35 Hz) means it stays put on a machine frame that shakes, like a conveyor drive or a compressor skid.