The PSR-SPP-24DC/ESD/5X1/1X2/T30 safety relay is designed for emergency stop and safety door monitoring in safety circuits, achieving up to category 4, PL e according to EN ISO 13849-1 and SIL 3 according to IEC 61508. It features three undelayed and two delayed normally open contacts with a fixed 30.0 s dropout delay, plug-in spring-cage terminal blocks, and supports single- or two-channel wiring with cross-circuit detection. The device operates with a 24 V DC nominal input voltage and includes automatic or manual start circuit options. A monitored reset button connected to S33/S34 is required for activation.
