The 3RT2023-2AP00-ZW96: The 7.6 A at 480 V rating is the AC-3 motor-switching current — that's the figure that governs whether this contactor will hold in on a 3-phase motor start without welding contacts. The 1 000 operations per hour maximum across AC-1, AC-2, AC-3, and AC-3e duty means it's sized for moderate cycling; if your application exceeds that, you'll need to step up to a larger frame or lower the duty cycle. The AC-4 maximum of 300 1/h reflects the heavier inching/jogging duty — stay under that for plug-reversing or inching applications. Wire range: solid or stranded 1 to 10 mm² for the main circuit, and 2x 0.5 to 2.5 mm² for auxiliary wiring. The spring-type coil terminals eliminate the need for screwdriver torque checks — just strip and push. That's the minimum air gap to adjacent metalwork or other contactors; if you're packing multiple units side-by-side, add the 6 mm side clearance to your panel layout. Contact life depends on the switching current and duty cycle; the 10 million figure is for unloaded mechanical cycling.
Size S0 is the compact frame in the SIRIUS family; it occupies 45 mm width on the rail, 102 mm height, 97 mm depth.