It's a 3-pole, size S0 frame, rated 36 A at AC-3 duty (400 V), which means it handles the switching and protection of squirrel-cage motors under normal starting and running conditions. The rated operational current at 400 V AC-3 is exactly 36 A, so that's the motor full-load current it's sized for; the magnetic short-circuit trip responds at 468 A, clearing a bolted fault before the contactor welds shut.
Voltage and insulation ratings
The rated impulse withstand voltage is 6 kV, so it holds off transient surges from nearby contactor switching or lightning-induced spikes on a long motor feeder, provided the installation altitude stays at or below 2000 m.
Mounting position is any. Clearances: 50 mm upward, 50 mm downward, 30 mm at the sides; zero forward and backward.
Environmental and mechanical limits
Relative humidity during operation is 10 to 95 %, non-condensing — fine for a panel in a humid plant provided there's no condensation. Shock resistance is 25 g for 11 ms per IEC 60068-2-27, which handles the vibration of a nearby hammer mill or compressor start.