The Siemens 3RF3190-2AA24 is a SIRIUS 3RF31 solid-state relay, 1-pole, 22.5 mm wide, rated for 90 A continuous at 48-460 VAC line voltage, with a 110-230 VAC control supply.
This SSR is designed for mounting on available cooling surfaces — it does not include an integral heatsink, so the panel builder must provide a flat metal surface (typically the backplate or a dedicated heatsink) with thermal compound to dissipate the 90 A load heat. The 22.5 mm width matches the standard DIN-rail footprint for SIRIUS components, allowing side-by-side ganging with contactors, overloads, and other 22.5 mm modules in the same enclosure. The 48-460 VAC range covers common three-phase line voltages (230 V, 400 V, 460 V) for resistive heater banks, lamp loads, or motor soft-start bypass circuits.
RoHS compliant since 15-01-24. No UL or CSA listing is recorded in the evidence; verify with local Siemens documentation for specific project certification needs. Export control: AL N / ECCN N — no license required for most destinations.