It mounts via screw fixing or snaps onto a 35 mm DIN rail per DIN EN 60715, with a footprint of 55 mm wide by 114 mm high by 130 mm deep — that depth means it needs a 130 mm clear pocket behind the panel door, so check your enclosure depth before committing the BOM line.
The headline motor-switching rating is 52 A at 480 V under AC-3 duty — that's the current it can make and break a standard squirrel-cage induction motor across the line. Switching frequency varies by duty class: up to 1 000 operations per hour for AC-1 resistive loads, 800 per hour for AC-3 motor starting, and 250 per hour for AC-4 plugging or inching.