Safety relay with integrated delay and logic
The Omron G9SX-GS226-T15-RC DC24 is a general-purpose safety controller rated to Category 4, PLe, SIL3. It runs on 24VDC and accepts 2 digital inputs, driving 4 solid-state safety outputs and 6 solid-state auxiliary outputs. Built-in delay adjustable from 0 to 15 seconds and logical AND I/O capability let it handle timed safe-stop sequences or interlock logic without an external timer module. Spring-cage terminals (0.2–2.5 mm²) and DIN-rail mounting keep panel wiring fast — no screw torque, no tool change for the termination row.
What the safety ratings mean for your machine
Category 4 (EN ISO 13849-1) means the architecture is fault-tolerant: a single fault in the safety path is detected and the system stays safe, with accumulated fault coverage above 99 %. PLe is the highest performance level — the probability of dangerous failure per hour is below 10⁻⁸. SIL3 (IEC 62061) matches that reliability band. For a press, robot cell, or conveyor with risk of injury, this part satisfies the most demanding control-reliable requirements. The 4 safety outputs are solid-state, so they switch faster than electromechanical contacts and last longer in high-cycle applications. The 6 auxiliary outputs can mirror status or drive a PLC input card without extra interposing relays.