Key ratings and what they mean for fit
The 3VA2163-5HN32-0HA0: The 63 A continuous rating is flat across the full operating temperature range from 40 °C to 70 °C — no derating needed if your panel runs hot. That's unusual for an MCCB; many competitors start dropping current above 40 °C. The 800 V rated insulation voltage tells you the internal clearances and creepage are designed for 690 V systems, so it's safe on 400/480/690 V line-to-line circuits. The shunt trip (STL) is factory-installed on this variant, so you don't have to order a separate accessory and wire it in the field — one less thing to carry on the van. The basic switch module is order code 3VA21635HN320AA0, which is the replaceable core if the breaker ever needs internal service.
Dimensions and panel fit
At 181 mm high, 105 mm wide, and 86 mm deep, this MCCB fits standard Siemens SENTRON 3VA panel cutouts and bus-bar systems. The 105 mm width is the standard 3-pole MCCB footprint — it'll drop into a panel that was laid out for a 3VA2 frame without redrilling the mounting holes or re-busing the line and load connections. Depth of 86 mm means it clears most standard enclosure backplates without hitting the door or gland plate. If you're swapping a failed 3VA2163-5HL32-0DB0 (a similar SENTRON variant), the physical footprint is identical — no rewiring needed, just match the trip curve and accessories.