The 3RF3330-3AA24 is a 1-pole SIRIUS 3RF33 solid-state contactor rated 30 A in AC-1 duty at 40 °C. AC-1 covers resistive loads — heaters, ovens, lighting banks — where the switching current and load current are essentially the same. For motor or inductive loads you'd need the AC-51 or AC-53a rating from a different variant in the same family. The 48-460 V operating range covers standard three-phase line voltages across most industrial regions; the 110-230 V AC control voltage is a common coil supply that matches standard panel control transformers.
Ring cable lug connection means the power terminations accept ring terminals — common in North American panel practice where compression lugs are preferred over bare wire or box lugs. The 105 x 27 x 122 mm footprint fits a standard DIN-rail enclosure; the 27 mm width is one and a half 18 mm modular spaces, so plan your rail layout accordingly. It's a 1-pole device, so for three-phase resistive loads you need three units, ganged mechanically or controlled from a common signal.