SEU-31TD-i Safety Relay Expansion Unit Datasheet

This datasheet describes the IDEM SEU-31TD-i, an expansion unit for SCR base safety relays that provides three delayed safety output contacts and one delayed auxiliary output contact with a configurable time delay of 0-30 seconds. It uses force-guided relays with feedback monitoring to ensure fault detection and maintain safety integrity up to PLd, SILCL 3, Category 3, and Stop Category 1.