STI FS4316B-2R-2 Light Curtain Receiver FlexSafe-B

The STI FS4316B-2R-2 is a 16-inch receiver unit in STI’s FlexSafe-B family of safety light curtains, designed to serve as the receiving element in FS4300-series installations. This model is listed specifically as Light Curtain 16IN Receiver Flex Safe FS4316B-2R-2 and is associated with the FS4300B2 configuration, signaling its role within the FlexSafe-B line. Built for use in machine guarding and automation environments, the FS4316B-2R-2 works with a corresponding FlexSafe transmitter to form a complete safety light curtain that helps detect interruptions in the optical beam and trigger safe-stop actions in accordance with standard safety practices. Distributor listings identify the FS4316B-2R-2 as a genuine STI spare part, underscoring its compatibility within the FS4300-series ecosystem. Typical deployment scenarios include CNC and robotic cells, presses, and other automated equipment where safeguarding personnel from accessing moving parts is critical. The model's 16-inch receiver format supports compact guard configurations while preserving reliable beam sensing essential to fail-safe operation; the designation '2R-2' is standard cataloging used to differentiate the FS4316B-2R-2 variant within the broader FlexSafe-B family.