Siemens 5SY7163-7 SENTRON MCB — 1-pole, C-curve, 63 A
It breaks 15 kA per EN 60898 and 20 kA per IEC 60947-2 at 50/60 Hz — the higher figure matters when the panel is specified to IEC 60947-2 for industrial motor circuits rather than the residential EN 60898 standard. Energy limitation class 3 keeps let-through energy low, protecting downstream wiring and loads. Rated current derates with ambient temperature: 59.16 A at 40 °C, 57.14 A at 45 °C, 55.06 A at 50 °C, 52.92 A at 55 °C, 50.65 A at 60 °C. Halogen-free and silicon-free construction; sealable with a lead or tag for lockout/tagout compliance. Supply cord position is any — no orientation restriction in the panel.
The part is designed for mechanical engineering and general industrial use per the manufacturer's suitability listing. Compliance documentation (RoHS, REACH, CE) is available with the shipment.