The Siemens 3RT7035-1AP00 is a Size S2, 3-pole contactor from the SIRIUS family, rated for AC-3 and AC-3e switching up to 690 V.
Three main NO contacts handle the load circuit. The contactor is rated for AC-3 (squirrel-cage motor switching) and AC-3e up to 690 V. For type of coordination 2, the recommended upstream fuse is 80 A gL/gG NH 3NA; for type 1 coordination, 125 A. That gives you headroom for selectivity with downstream motor starters. Coil consumption is modest: 0.78 W closing power, 0.42 W holding power at DC. That keeps the heat rise in a crowded panel manageable. The magnet coil is DC-operated; verify your control voltage polarity and free-wheel diode placement if you're paralleling with inductive loads.
Operating temperature range is -10 to +55 °C; storage from -25 to +70 °C. Pollution degree 3 means it's suitable for conductive environments like factory floors. Screw-type terminals on both main and auxiliary circuits accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire, with core-end ferrules supported. Mechanical switching frequency: up to 800 operations per hour under AC-3, 250 per hour under AC-4.