The Siemens SENTRON 3VA2163-5HL32-0DC0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current at 40 °C through 70 °C — no derating needed across that full ambient span, which is unusual for a compact frame breaker and simplifies panel thermal calculations. Its interrupting capacity hits 187 kA at 240 VAC, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3.7 kA at 690 V — the steep fall at 690 V means this breaker is sized for 240–500 V distribution, not 690 V main feeders.
At 105 mm wide, 181 mm tall, and 86 mm deep, this 3-pole MCCB fits standard SENTRON 3VA2 panel footprints and leaves room for side-by-side mounting with other 3VA breakers on the same DIN rail or mounting plate. Maximum power loss is 6.5 W — low enough that internal panel temperature rise from the breaker itself is negligible, but still worth including in your enclosure thermal budget if you're packing a dense row of these.