Schmersal SE-400C 4-Channel Safety Relay Module

Schmersal SE-400C is a 4-channel safety monitoring module that evaluates signals from SE safety edges to ensure safe stop action in industrial machinery. It is designed to work with Schmersal SE 40 and SE 70 safety edges, consolidating four input channels into a single monitoring unit and applying safety logic that supports high-integrity shutdown. When configured in a compliant setup, the SE-400C delivers Category 4 safety performance and PL e, enabling robust protection for operators at points of ingress and egress such as doors, gates, and guarding panels. The part is cataloged as SE-400 C and carries Art.-Nr. 101153920 in Schmersal's product lineup, reflecting its role as the SE edge monitoring module within the broader SE safety-edge system. Typical applications include safeguarding industrial doors, gates, machine entrances, and other protective interfaces where a safety edge must reliably detect contact or proximity and trigger an immediate halt of hazardous motion. Designed for installation in standardized guard circuits, the SE-400C integrates into Schmersal's safety architecture with straightforward wiring and diagnostic options to support maintenance and fault tracing.