Core specs — what fits and what doesn't
The Siemens SENTRON 3VA2163-5HN32-0AE0 is a 3-pole molded case circuit breaker rated for 63 A continuous, with no derating from 40 °C up through 70 °C — useful if your panel runs hot or sits near a drive cabinet. The 187 kA interrupting capacity at 240 V drops to 121 kA at 415/440 V, then 75.6 kA at 500 V, and 3.7 kA at 690 V; that 690 V figure means it's not your go-to for 690 V bus work unless the available fault current is very low. Power loss maxes at 4 W, which keeps the heat load in the enclosure manageable.
What's on the van — field-service perspective
If you're swapping a failed breaker on site and the old one had a shunt trip or UVR coil, this bare unit won't cover that function. The auxiliary switch count matches a lot of common panel designs, so the alarm/status wiring usually lands without rework.
Panel integration — DIN rail and footprint
Mounts on standard DIN rail — 105 mm wide for a 3-pole unit, which is the usual 3-module width for SENTRON MCCBs. No trip indicator window on this variant, so a visual check of the handle position is how you confirm state.