The Siemens 3RF3380-3AA04 is a SIRIUS 3RF33 series solid-state contactor, 1-pole, rated for AC-1 resistive loads at 80 A continuous at 40 °C ambient. Its control voltage is 24 V DC, and the power circuit handles 48-460 V AC. Termination is via ring cable lug connections — a secure, vibration-resistant fit for panel wiring.
What the AC-1 rating means for your load
That's the figure that governs thermal rise in the panel. If you're switching motor loads (AC-3 or AC-4 duty), the contactor will need derating; this part is purpose-built for resistive switching, not inductive kick.
Integration notes
Packaged singly, dimensions 105 x 73 x 128 mm — a compact 1-pole footprint for DIN-rail mounting alongside other SIRIUS control gear. The ring cable lug termination means you'll need ring terminals on your load wiring; no screw-clamp or spring-cage here. Plan for that in your panel bill of materials.