63 A continuous, no thermal derating through 70 °C
The Siemens SENTRON 3VA2163-5KP32-0BC0 is a 3-pole molded case circuit breaker rated 63 A continuous across the full ambient range from 40 °C to 70 °C — no derating curve to calculate, which simplifies panel thermal coordination. Interrupting capacity hits 187 kA at 240 V, dropping to 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V, giving solid fault-level headroom for most industrial distribution boards without needing a current-limiting upstream device.
Built-in undervoltage release, no auxiliary trip module needed
This variant ships with an undervoltage release (UVR) integrated — design of the auxiliary release is listed as undervoltage release (UVR), so you don't need to order a separate shunt trip module for brownout or emergency-stop drop-out schemes. The auxiliary switch complement is 2 auxiliary switches HQ (high-qualified), which gives status feedback without adding a side-mount block. If your BOM calls for ground-fault monitoring, note this unit is specified without that function.
Panel footprint: 105 mm wide, 86 mm deep, 181 mm tall
Dimensions are 105 mm width (4.13 in), 86 mm depth (3.39 in), 181 mm height (7.13 in) — fits the standard SENTRON 3VA2 panel cutout and busbar spacing. The 3-pole form factor matches existing Siemens MCCB mounting rails; no adapter plate needed for most distribution boards. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C, so it handles unheated electrical rooms and outdoor enclosures within reason.