The 14 A rating at 480 V tells you it handles a 3 hp motor at 230 V and can manage the inrush without welding contacts.
The S0 frame is the mechanical envelope: 85 mm high, 97 mm deep, 45 mm wide. That 45 mm width is the key panel-space number — it matches the S0 footprint across the SIRIUS line, so if you're swapping into an existing panel, the mounting holes and DIN clip line up. Clearance around the contactor: 10 mm above and below, 10 mm forward, 6 mm to the side. That side clearance is tight — keep that in mind if you're packing multiple contactors side-by-side in a high-ambient cabinet.
For the coil terminals, the spec shows two-wire capability: 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²). That's useful if you're daisy-chaining control voltage to multiple contactors — you can land two wires per terminal without a separate junction block. The screw-type terminals are the traditional choice; they hold well under vibration but take a bit longer to torque than spring-cage.