The Siemens 3RT1024-3AV60 is a SIRIUS power contactor in size S0 with three normally-open main contacts. Rated for 480 V at 60 Hz, it carries 10 A in AC-12 duty (resistive loads) and switches motor loads at 7.5 kW at 500 V or 690 V. The 45 mm width and snap-on mounting onto 35 mm DIN rail per EN 50022 fit standard panel layouts; the IP20 front enclosure protects against finger contact during installation.
Ratings and what they mean for your panel
The AC-2 rating at 400 V (5.5 kW) covers wound-rotor motor starting and reversing — the contactor handles the higher inrush without welding. AC-4 at 400 V (12.5 A) is the plugging / inching duty cycle, the toughest thermal test for a contactor; this rating tells you the 3RT1024-3AV60 survives frequent reversals in a conveyor or crane application. The mechanical life of 10 million operations means the coil and armature assembly outlasts most load-side components in a standard control panel. Pollution degree 3 means the contactor is rated for conductive pollution environments — typical in industrial enclosures where dust, oil mist, or condensation are present. The screw-type terminals accept up to 2x 10 mm² or 1x AWG 8, so it handles common motor feeder cables without splicing. Side-by-side mounting is allowed, but verify the 6 mm side clearance for heat dissipation when ganging multiple contactors on the same rail.