The Siemens SENTRON 3VA2163-5HL32-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, designed for line protection in distribution panels and industrial switchboards. At 415 V and 440 V it still holds 121 kA, dropping to 75.6 kA at 500 V and 3.7 kA at 690 V, so the voltage class of your installation directly governs the interrupting rating you can rely on.
The 63 A frame is fully rated from 40 °C through 70 °C ambient — no derating needed across that range, which simplifies panel layout in warm enclosures or near other heat sources. Power loss is 6.5 W maximum, negligible for thermal budgeting in a standard IP54 cabinet. The UVR drops the breaker when control voltage falls below a threshold, useful for undervoltage protection on motor feeders or as part of an emergency-stop chain.
Physical integration
Dimensions are 181 mm height, 105 mm width, 86 mm depth — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures. The 86 mm depth (3.39 in) is shallow enough for slim wall-mount cabinets; the 105 mm width (4.13 in) is typical for a 3-pole frame.