The Siemens 3RF3380-3BA24 is a 1-pole SIRIUS 3RF33 solid-state contactor rated for AC-15 duty at 27.5 A at 40 °C, with a switching voltage range of 48-460 V and a 110-230 V AC control coil. Instantaneous switching eliminates the zero-cross delay typical of some SSR designs, which matters when you need predictable turn-on timing for a clutch or brake.
This is a DIN-rail-mounted unit in the SIRIUS 3RF33 family. The ring cable terminal (ring cable lug connection) is the power termination style — expect ring tongues on the load and line cables, not spring-cage or screw-clamp. The 105 x 73 x 128 mm package fits standard 35 mm DIN rail; plan for the ring terminal's bend radius when laying out the panel gland plate. The 110-230 V AC coil draws from the control transformer; verify the coil's pick-up and drop-out thresholds against your PLC output card's drive capability if you're switching it via a relay interface.