The Siemens 3RT6016-1AU01 is a SIRIUS power contactor in the compact S00 frame — the smallest size in the family, built for switching three-phase motors up to 22 kW at 690 V (at 60 °C) and resistive loads up to 10 A at 230 V.
The headline motor ratings are given at 60 °C ambient — 7.5 kW at 230 V, 13 kW at 400 V, 22 kW at 690 V. That's the continuous switching capacity for AC-3 duty (squirrel-cage motors, starting and disconnecting under load). The 690 V AC-3 maximum voltage means it handles 690 V motor circuits directly, no series-stacking needed. For resistive loads (AC-1), the contactor is rated at 10 A at 230 V. The switching frequency caps at 1,000 cycles/hour for AC-1, 750 for AC-3, and 250 for AC-4 (plugging/reversing). If you're running a conveyor that cycles every 30 seconds, that's 120 cycles/hour — well under the limit.
Screw terminals on the main circuit accept 2x 0.5–1.5 mm² solid/stranded, 2x 0.75–2.5 mm², or 2x 4 mm². At 40 °C ambient, the minimum permissible conductor is 4 mm²; at 60 °C, 2.5 mm².