The Siemens SENTRON 3VA2063-7HN46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 63 A continuous current across the full 40–70 °C ambient range — no derating needed in a warm panel. That 63 A holds steady all the way up to 70 °C, which is unusual; most breakers start pulling back above 40 °C. The interrupting ratings are serious: 330 kA at 240 V, 242 kA at 415 V, and still 187 kA at 500 V — that's enough to handle high-fault utility feeds or transformer secondaries without cascading upstream.
That 140 mm width across four poles is tight for a 63 A MCCB — it'll fit a 600 mm wide enclosure with room for a disconnect handle and some auxiliary contact blocks alongside.
Being a Siemens SENTRON product, the 3VA2063-7HN46-0AA0 carries the usual compliance suite: UL 489, CSA C22.2 No. 5, IEC 60947-2, and CE marking for European installations. RoHS and REACH declarations are available through Siemens' documentation portal. The ETU350 trip unit is UL-recognized for electronic overcurrent protection. If your QA needs a declaration of conformity or a material compliance cert, it's standard issue with this series.