The 3VA2163-5HL36-0KL0: The 63 A continuous rating is the thermal-magnetic trip's backbone — it's rated for the full 63 A load at any ambient from 40 °C up to 70 °C, which is unusual. Most MCCBs start derating above 40 °C; this one doesn't, so you can mount it in a hot panel next to drives or transformers without oversizing. The 187 kA interrupting rating at 240 V is the headline number, but the real-world selectivity story is at 415 V (121 kA) and 500 V (75.6 kA). At 690 V it drops to 3.7 kA — that's still enough for most 690 V motor branch circuits, but you'll need coordination study if you're feeding a 690 V transformer secondary. That means you get remote status, trip indication, and a separate alarm contact without adding aftermarket modules.
It's a 3-pole SENTRON MCCB sized for line protection — meaning it's the main or feeder breaker in a distribution panel, not a motor-circuit protector.