The 3RT1035-1AP04-3MA0: The AC-3 rating at 400 V is 18.5 kW, and at 500 V it's 22 kW — these are the numbers that tell you what induction motor this contactor can switch under full load. For heavy-duty jogging or inching (AC-4), it's rated 35 A at 400 V, so it handles plugging and reversing duty on smaller motors. Mechanical endurance is typical 10,000,000 operations, which is standard for a SIRIUS S2 frame. The coil operates on 230 V at 50 Hz, with an operating range of 0.8 to 1.1 times rated voltage, so it holds in during brownout conditions down to about 184 V.
Terminal and wiring
Solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded: 2x (0.75 to 25 mm²). That's enough for the full rated current on a 22 kW motor at 500 V — you'd typically land 6 mm² or 10 mm² stranded. At 40 °C the minimum permissible conductor is 16 mm² for the main circuit, which matters if you're derating for a warm enclosure.
Auxiliary contacts
Built-in auxiliary contact block rated: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. That's a standard 1 NO + 1 NC configuration for the SIRIUS S2 frame — enough for a holding circuit and a status feedback to the PLC without an add-on block.