At 400 V AC-2 duty, this contactor is rated for 15 kW, and at AC-4 at 400 V it handles 29 A. These are the ratings that govern real motor switching — AC-2 covers slip-ring motors, AC-4 covers plugging and inching. The 50 Hz rated operating voltage range is 0.8 to 1.1 times the nominal, so at a 400 V nominal it stays within spec from 320 to 440 V. Mechanical life is listed at 10 million operations typical, with maximum switching rates of 1 200 cycles per hour at AC-1 and 1 000 at AC-3. For a conveyor line cycling every few seconds, that rate is the limiting factor — not the mechanical endurance.
IP20 on the front, IP00 at the terminals — the terminal area needs protection from accidental contact in the panel layout.