Allen-Bradley 450L-E4HL0900YD Transceiver Safety Light Curtain

The Allen-Bradley 450L-E4HL0900YD Transceiver Safety Light Curtain detects the presence of personnel or objects at guard openings and immediately stops machine motion to prevent injury. Commonly installed at guard openings, access points, robotic workcells, press lines, and automated machinery where safeguarding of operators and automated systems is required by safety standards, it is used for safety retrofits, control panel upgrades, and replacing failed safety components. Technical specs include infrared beam-array sensing with model-dependent sensing height, industrial-range reach, and outputs that are safety-relay or STO-compatible; the unit mounts in an upright profile at machine access points and operates under industrial-rated conditions with model-dependent power supply. Common replacements include the Allen-Bradley 450L-E4HL1800 and 450L-E4HL0450 safety light curtains, with Banner SLC Series safety light curtains noted as related options.