The Siemens 3VA1163-4GD42-0AA0-ZD00 is a current-production IEC frame 160 molded case circuit breaker from the 3VA1 series, rated 63 A with a 36 kA breaking capacity at 415 V (class S). It is a 4-pole unit configured for line protection using a TM210 thermal-magnetic trip unit — fixed overload Ir at 63 A, fixed short-circuit Ii set at 10 × In, and 100% N-conductor protection. The order code includes a nut keeper kit and is designated for DC Power OEM supply in China.
What the ratings mean for your panel
The 36 kA Icu at 415 V tells you this breaker can safely interrupt a fault current up to that level without welding its contacts or venting plasma into the enclosure — that's the SCCR headroom the panel designer needs for the downstream coordination study. The TM210 thermal-magnetic trip gives you a fixed 63 A overload element (Ir) and a magnetic instantaneous pickup at 630 A (10 × In), which is a standard motor-start or distribution feeder curve. The 100% N-conductor protection means the neutral pole is fully rated and protected, not just switched — critical for 4-wire systems where a neutral fault can't be ignored.