At AC-2 duty (starting and stopping slip-ring motors), the contactor is rated 15 kW at 400 V — that's the figure that governs the motor load it can handle in that application. For AC-4 duty (plugging, inching, reversing), it's rated 29 A at 400 V, which is the higher thermal stress from frequent switching. The auxiliary contact block handles 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — these are the limits for the control circuit, not the main power path.
The contactor is 55 mm wide, 112 mm high, and 164 mm deep. It accepts screw-type terminals for the main circuit: solid or stranded wire 2x (0.75...16 mm²), and stranded alone up to 2x (0.75...25 mm²).