The Siemens SENTRON 3VA2163-5JQ32-0CL0 is a 3-pole molded case circuit breaker (MCCB) with a 63 A frame and an adjustable thermal-magnetic trip unit covering 95 A to 756 A. It delivers a breaking capacity of 187 kA at 240 V AC, tapering to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — so at typical 400 V distribution voltages it clears fault currents up to 121 kA without cascading upstream. The trip indicator and undervoltage release (UVR) are built in, and the auxiliary switch configuration includes two auxiliary switches, one trip alarm switch, and one electrical alarm switch (HQ).
Thermal performance and panel fit
Rated current holds at 63 A across the full ambient range from 40 °C to 70 °C — no derating needed in a warm enclosure. The 86 mm depth × 105 mm width × 181 mm height footprint fits standard MCCB panel cutouts; the 3-pole block occupies a single DIN-rail or screw-mount position. Power loss is 6.5 W maximum, manageable in a sealed cabinet without forced ventilation.