Struthers-Dunn 219ABA179 Electromechanical Relay

The Struthers-Dunn 219ABA179 Electromechanical Relay is a plug-in general‑purpose relay from the 219 Series, designed for industrial and nuclear plug‑in installations. It uses a 24/28 VDC coil and combines SPST‑NO, a DPDT (two Form C) section, and SPST‑NC contacts in a single package, enabling multiple switching paths from one device. The unit features a 12‑pin plug‑in interface and a polycarbonate cover for protected panel mounting, and it carries a 10 A rating for switching. This configuration allows a single relay to drive multiple circuits or logic conditions without needing separate components. The 219ABA179 sits within Struthers‑Dunn’s catalog of Industrial & Nuclear Plug‑in Relays, underscoring its suitability for demanding environments where reliable electromechanical switching is required. Within the broader 219 Series, nuclear‑grade variants exist (such as 219NE), illustrating the lineage and the availability of rugged options for high‑reliability applications.