Siemens SENTRON 5SY6316-6 — 3-pole B-curve MCB
It carries a 6 kA interrupting capacity per EN 60898 and a 15 kA rating per IEC 60947-2, meaning it clears faults up to 15 kA under industrial panel conditions — enough for most distribution subfeeds in mechanical engineering and industry environments. The 3-pole design switches all phases together; no neutral pole here.
This MCB is certified to IEC / EN 60898-1 for household-type installations and IEC / EN 60947-2 for industrial applications, plus UL 1077 for supplementary protection in North America. That dual certification simplifies BOM compliance across regions — the same part number works for a panel destined for Europe or North America. The IP20 rating applies with conductors connected; the enclosure itself is sealable.