The Siemens 3VA1063-3ED42-0AA0-ZD00 is a 4-pole IEC frame 100 circuit breaker from the 3VA1 series, rated 63 A with a breaking capacity of 25 kA at 415 V (class N). It uses a TM210 thermal-magnetic trip unit with fixed overload protection at Ir=63 A and fixed short-circuit protection set at Ii=10 x In. The N conductor is unprotected, and the unit includes a nut keeper kit for DC Power OEM applications in China. This is a current-production part, so it's a standard BOM line item, not a phase-out watch.
What the ratings mean for fit
The 25 kA breaking capacity at 415 V (IEC 60947-2) tells you this breaker can safely interrupt fault currents up to that level in a 415 V three-phase system — critical for selectivity studies and SCCR compliance on the panel nameplate. The fixed Ir=63 A means the thermal overload is not adjustable; if your load draws more than 63 A continuous, you need a different frame. The fixed short-circuit trip at 10 x In (630 A magnetic pickup) is typical for line protection of feeders and distribution, not motor starting — a motor circuit would need a higher Ii setting to avoid nuisance trips on inrush.