Siemens 5SJ4103-8HG41 — SENTRON 1-pole D-curve MCB
Breaking capacity is rated at 10 kA per EN 60898 and 15 kA per IEC 60947-2, both at 400 V AC. The higher IEC figure matters when the part is specified into an industrial distribution board where the prospective fault current exceeds 10 kA; the EN rating governs residential or light-commercial installations.
Width is 18 mm (1 modular unit), depth 70 mm, height 110 mm. Mounting position is any orientation — no derating required for horizontal or inverted installation. Combined (box + tunnel) terminals at both top and bottom accept Cu conductors. Vibration resistance tested at 50 m/s² over 25–150 Hz and 60 m/s² at 35 Hz (4 sec duration). This qualifies the breaker for installation on machinery or conveyors with moderate vibration; for high-shock applications (e.g., press lines), verify against the specific vibration profile.
