Footprint is 105 mm wide by 181 mm tall by 86 mm deep — standard 3-pole MCCB envelope for a 63 A frame. Bolts onto a backplate or mounts in a distribution panel; no DIN-rail clip on this frame size. The shunt trip adds a control-wire pair; plan for that in the wiring duct.
Rated short-circuit breaking capacity drops as system voltage rises: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. For typical 400 V distribution, the 187 kA rating covers most industrial transformer feeds.