The AF45-22-00-70: This part carries a current lifecycle status, meaning ABB still manufactures it as a standard catalog item.
Integration note for panel builders
The AF45-22-00-70 mounts on a DIN rail inside the enclosure. Its 4-pole layout suits applications like two-speed motor switching, star-delta transitions with a separate neutral, or resistive heating banks where a fourth pole isolates the neutral line. Verify the coil voltage and auxiliary contact configuration against the panel schematic before wiring — the order code alone doesn't encode those.