At 45 mm wide and 57.5 mm tall, it fits tightly in a crowded enclosure — useful when you're packing multiple contactors side by side (side-by-side mounting is supported).
The headline motor rating is 5.5 kW at 500 V and also at 690 V — that's the AC-3 duty, which covers standard squirrel-cage motor starting. If your application does frequent plugging or jogging, that's the number to watch — not the AC-3 figure. Auxiliary contact ratings cover the control side: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V. That's enough for direct PLC outputs or relay coils without an interposing relay in most cases.
Screw-type terminals on the main circuit accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) — solid or stranded. That covers most motor leads up to 4 mm² without needing a terminal adapter.
That's your selectivity starting point when designing the branch circuit.