The Siemens 3RF3365-1BA24 is a 1-pole solid-state contactor from the SIRIUS 3RF33 family, rated for AC-15 duty at 27.5 A at 40 °C. AC-15 is the switching category for electromagnetic loads—solenoids, contactor coils, brakes—so the 27.5 A figure governs the inductive inrush you get with those loads, not a resistive heater curve. The load circuit spans 48-460 V AC, and the control is 110-230 V AC instantaneous switching, meaning the output follows the control signal without zero-crossing delay. Screw terminals for the wiring.
This is a DIN-rail mounted solid-state contactor, sized for control panel integration where you need silent, wear-free switching of AC solenoids or contactor coils. The 1-pole format keeps the footprint compact—one unit per switched line. The instantaneous switching response means it's suited for applications where you need the load to follow the control signal immediately, not at the next AC zero-crossing.