The 55 mm width and 112 mm height fit a standard footprint for this frame class.
Motor switching capacity — the ratings that matter
For AC-3 duty (standard squirrel-cage motor starting), this contactor is rated to switch motors up to 15 kW at 400 V. That is the figure to match against your motor nameplate for general-purpose starting and stopping. For AC-4 duty (plugging, inching, or reversing under load), the continuous current rating is 29 A at 400 V. AC-4 is harder on contacts than AC-3, so if your application involves frequent reversals or jogging, this is the rating to check. At higher voltages, the motor power capability is 18.5 kW at 500 V and 10 kW at 690 V. Switching frequency limits vary by duty: 1200 cycles/hour for AC-1 resistive loads, 1000 for AC-3, 750 for AC-2, and 250 for AC-4. The AC-4 limit is the binding one for high-cycle reversing applications.
Auxiliary contact ratings and environmental limits
The built-in auxiliary contacts are rated for switching: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. These cover typical PLC-level and relay interface loads.
No UL or CSA listing is explicitly stated in the available data, so verify jurisdictional acceptance if your site requires those marks.