Panel-fit and ratings
The main circuit uses screw-type terminals; the control circuit accepts solid wire 2x (0.25... 2.5 mm²) and stranded 2x (10... 50 mm²). Rated for AC-3 duty at 37 kW at 500 V — that's the motor-switching capability for a typical 3-phase induction motor at that voltage. For heavy jogging or plugging duty (AC-4), it carries 55 A at 400 V. The contactor is rated at 50 Hz; mechanical life is 10,000,000 operations. The enclosure protection is IP20 on the front with the cover or box terminal fitted; the terminal area itself is IP00.