The IP20 front enclosure protects against finger contact during operation, while the terminals themselves are IP00 — meaning the wiring compartment is open to the panel environment, which is typical for contactors mounted inside a cabinet. The 24 VDC coil draws the listed holding current; the dropout threshold is below 18 V, so verify your control supply stays above that during brownout conditions. For resistive loads (AC-12) the maximum operating current is 10 A. The rated operational voltage covers 230 V at 50 Hz up to 690 V, with a motor rating of 7.5 kW at both 500 V and 690 V.
The screw-type terminals for the main current circuit accept solid conductors from 2x (0.5 to 1.5 mm²) up to max 2x (0.75 to 4 mm²), and stranded conductors from 2x (1 to 2.5 mm²) up to max 2x 10 mm². AWG equivalents are 2x (16 to 12) solid and 2x (14 to 10) stranded, with a single 8 AWG maximum.