What this MCCB is and where it fits
The Siemens 3VA2163-5HN36-0AD0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient range from 40 °C through 70 °C — no derating needed up to that ceiling. It is a 3-pole, line-protection design with no undervoltage release, no trip indicator, and no communication module, so it is a straightforward overcurrent guard for a distribution feeder or a large motor branch circuit in an industrial panel.
Interrupting capacity — what the numbers mean for coordination
This MCCB delivers 187 kA interrupting capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The 187 kA figure at 240 V gives you headroom for high-fault panels downstream of a large transformer — selectivity with an upstream fuse or breaker is achievable without cascading. At 690 V the 3.7 kA rating is modest, so verify the available fault current if you are running a 690 V line.
Physical fit in the panel
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint. The 86 mm depth (3.39 in) fits shallow enclosures.