Schmersal SRB 301LC-24V Safety Relay Module For Industrial Use

Schmersal SRB301LC-24V is a DIN-rail mounted safety monitoring module designed for industrial machines, delivering verified safety signaling from a compact, robust unit. It operates from 24 V power (AC or DC) and accepts standard safety inputs to drive safety outputs for controlled machine shutdown in defined fault and stop conditions, helping to implement verifiable safety circuits in line with industrial requirements. The module uses screw-terminal connections for 0.25–2.5 mm² conductors and includes a glass fuse for overcurrent protection, all housed in an IP20-rated enclosure suitable for indoor control cabinets. As part of Schmersal’s SRB family, SRB301LC-24V is intended to monitor safety devices and provide safe signaling to downstream control equipment, supporting common safety applications in DIN rail installations. Typical configurations support emergency-stop circuits, guard-door monitoring, magnetic safety switches, and actuated safety devices (AOPDs), enabling reliable fail-safe behavior across safety functions while keeping wiring simple and auditable. This safety relay module is designed for industrial use where certified safety signaling, quick diagnostics, and straightforward integration with Schmersal’s safety ecosystem are important, offering a compact, standards‑driven solution for building robust machine safety circuits.