Keyence SL-T11R-151-3 Light Curtain Controller

Keyence SL-T11R-151-3 is a safety control relay terminal that serves as the light curtain controller for Keyence safety systems. It interfaces with light curtain sensors to monitor guarded zones and drive the machine’s stop outputs in a fail-safe manner, helping ensure safe operation of automated equipment. The SL-T11R-151-3 configuration identifies this specific variant within Keyence’s industrial safety lineup. Designed for use in manufacturing and automation environments, it coordinates sensor signals with safety relays to support reliable machine guarding and quick protective action when a hazard is detected.