The Siemens 3VA1163-5EE42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker from the 3VA1 series, rated for line protection with a TM220 thermal-magnetic trip unit and ATFM. It carries a 63 A nominal rating (In) with adjustable overload protection (Ir) from 44 A to 63 A, and a fixed short-circuit protection setting of Ii = 10 × In. The breaking capacity hits 55 kA at 415 V, putting it in the M class — meaning it'll clear a serious fault without letting the arc climb upstream.
What the ratings mean on the panel
The 55 kA Icu at 415 V is the maximum short-circuit current this breaker can safely interrupt once. That's a high-fault rating for a 63 A frame — it tells you this panel is expected to sit on a distribution board with significant transformer capacity behind it. The adjustable Ir band (44–63 A) gives you some tuning range for the actual load, which is handy if the motor or feeder draw isn't exactly 63 A. The fixed Ii at 10× In means instantaneous trip kicks in at 630 A; no dial to mis-set there. The N conductor is unprotected, so this is a 3-pole-plus-neutral configuration — the neutral bar passes through but isn't switched or monitored.
The ZD00 suffix designates a DC Power OEM variant built for the Chinese market, including a nut keeper kit. That doesn't change the electrical ratings — same 55 kA, same 63 A frame — but it does mean the packaging and hardware differ from a standard 3VA1 catalog number. If you're swapping this into a panel that expects a standard 3VA1, the footprint and termination are identical; just note the kit.