What it is and what it does
The Siemens SENTRON 3VA2063-6HL32-0DC0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, designed for line protection in industrial distribution panels. It carries a breaking capacity of 242 kA at 240 V AC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — meaning it can safely interrupt fault currents up to those levels across common industrial voltages without upstream cascading. The adjustable thermal-magnetic trip unit covers a setting range from 95 A minimum to 756 A maximum, so it fits motor feeders or transformer primaries where the load current is well above the 63 A frame rating. An integrated undervoltage release (UVR) and two auxiliary switches (HQ design) are built in, saving panel space and wiring time compared to adding them as external accessories.
Panel integration and mounting
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures without rework. Rated for operation from -25 °C to 70 °C ambient, with no derating of the 63 A continuous current across the full temperature range; storage limits are -40 °C to 80 °C.