Industrial FS4312BX-1 Light Curtain Transmitter

The FS4312BX-1 is the transmitter unit in STI’s FlexSafe FS4300 safety light curtain family, delivering a 12-inch protective field for guarding machine access points. Paired with the FS4312BR-1 receiver, this two‑part system provides the infrared beam array that detects interruptions and enables automated safety shutoff for hazardous equipment in industrial environments. Identified as the 12-inch transmitter in the FS4312 family, the FS4312BX-1 is designed for rugged, field-installable mounting alongside conveyors, presses, robots, and other automated cells where space is limited and safety coverage must be compact. The FlexSafe FS4300 series is designed to meet recognized safety standards, including ANSI/RIA R15.06-1992 and ANSI B11.19-1990, providing reliable detection of beam interruptions. The combination of the FS4312BX-1 transmitter and FS4312BR-1 receiver forms STI’s compact, modular light curtain solution intended to guard access points while minimizing footprint and wiring complexity, making it a common choice in guard-rail and machine-guard configurations.