The Siemens 3VA2163-6HL36-0HA0 is a SENTRON 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, designed for line protection in distribution panels. It ships with a factory-installed shunt trip (STL) auxiliary release, so you get remote tripping capability without adding a separate module. Interrupting capacity hits 242 kA at 240 VAC and still holds 187 kA at 415 VAC — that's serious fault-clearing headroom for high-available-fault installations like industrial switchboards or data-center feeders.
Thermal performance and real-world derating
This breaker holds its full 63 A rating from 40 °C all the way up to 70 °C ambient — no derating curve to chase in a hot panel. That's uncommon for a compact MCCB; most start dropping current above 50 °C. If your enclosure sits near a furnace line or in a crowded switchboard, this part keeps the full ampacity without a larger frame size.
Interrupting capacity across voltages
The SCCR numbers tell a clean story: 242 kA at 240 VAC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. That steep drop above 500 V means you need to check your system voltage before specifying — at 690 V the breaker is still usable for moderate fault levels, but it's not the same brute-force device it is at 480 V. For most 400/480 V industrial services, though, you've got more than enough interrupting margin.
Physical fit and panel integration
Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — a standard 3-pole MCCB footprint for the SENTRON 3VA2 family. Mounts on a DIN rail or direct-panel. Make sure your enclosure depth clears the 86 mm plus wiring space; the shunt trip adds no extra depth.