Reliance Electric 86474-7S Electromechanical Relay

Reliance Electric 86474-7S is a solid-state thyristor assembly sold as a rectifier stack, a power-electronics module used to convert AC input to DC within Reliance Electric rectifier systems. The model is explicitly identified as 86474-7S in manufacturer and distributor catalogs, described as a thyristor assembly or rectifier stack. It appears in repair and replacement inventories from several suppliers (IMS Supply, Santa Clara Systems, Radwell, ACS Industrial), indicating its availability as a genuine spare part within the Baldor/Reliance/ABB product lineage. As a rectifier stack, the 86474-7S comprises multiple thyristor devices configured to regulate or rectify current, and exact electrical ratings, package dimensions, and pinouts can vary by production batch, so buyers should verify unit-specific specifications with the supplier or the OEM before purchasing. Because it is listed as a rectifier stack or thyristor assembly rather than a conventional relay, it’s important to match the exact part number and cross-reference with current supplier catalogs to ensure compatibility with the target equipment.