It'll handle 400 V European gear too, but the coil and main poles are specced for that 480 V sweet spot. Mechanical life of 10 million operations typical for this contactor size — that's the mechanical endurance of the switching mechanism before wear-out. Electrical life depends on the load: at AC-3 (motor starting) it's rated for 1000 operations per hour max; at AC-4 (inching/plugging) it drops to 130 per hour.
That's flexible enough for most panel layouts, but keep the arcing clearance in mind: 10 mm upward, 20 mm forward, 10 mm sideways, 10 mm downward. Main power terminals accept stranded wire from 25 to 120 mm² — that's serious cable, appropriate for the Size S6 frame. Auxiliary and coil terminals use 2x 0.25 to 2.5 mm² solid or stranded, spring-cage style. Fastening is via screw fixing through a single 9 mm hole. That's a bolt-down mount, not DIN rail — plan for a drilled backplate or mounting bracket.