That AC-4 figure, not the AC-1 resistive rating, is the one that decides fit for a motor load that sees frequent starts or reversals. For AC-2 (slip-ring motor starting) or AC-3 (squirrel-cage motor starting and switching off under load), the contactor carries 11 kW at 400 V.
Type 2 coordination (contactor remains operational after a short) calls for a 35 A gL/gG fuse. These are the maximum fuse ratings for the respective coordination types — the actual selection depends on the downstream motor full-load current and the upstream breaker. Wire sizing for the main circuit accepts solid or stranded conductors: 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²), with a maximum of 2x 10 mm². AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8 AWG. Auxiliary contact wiring takes 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Electrical life will be lower and depends on the switching category, current, and frequency of operation. The contactor carries no built-in suppression for the coil; the installer provides the appropriate RC snubber or free-wheel diode across the coil terminals per the load type.