The Siemens 3VA1063-2ED32-0BA0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current at 40 °C, carrying the full 63 A all the way up to 50 °C before thermal derating kicks in — at 55 °C it's 60.48 A, at 70 °C it's 56.7 A. That 63 A is the Iu rating, so it's the current the breaker will carry without tripping under normal load, not a short-time rating. Breaking capacity drops as voltage climbs: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. This is a line-protection breaker, not a motor-protection or generator breaker. It's sized for feeder and distribution circuits where you need to protect cable and buswork, not a specific motor FLA. The 15 000 mechanical endurance cycles mean it's built for a panel that sees occasional switching, not daily load-break duty.
The auxiliary contact version is "without", so if you need a status contact for the panel PLC, you'll add the separate auxiliary switch (order code 3VA9608-0BB11).