Allen-Bradley 42FT-F2LPA-Y3 Photoelectric Sensor

Allen-Bradley 42FT-F2LPA-Y3 Photoelectric Sensor is a DIN-rail mounted PHOTOSWITCH fiber-optic sensor designed for control-panel installations where positioning the sensing head away from the amplifier is advantageous. This 12–24 VDC device uses a 42-foot fiber optic cable to locate the sensing head at a distance from the main electronics, enabling remote sensing in tight or hazardous spaces. The model belongs to the 42FT family and, according to Rockwell Automation, was discontinued on March 8, 2017, with 45FPL-2LHE-Y3 listed as the direct replacement. It is built to integrate with standard Allen-Bradley automation ecosystems and supports fiber-optic sensing within the PHOTOSWITCH platform, offering rugged performance for industrial environments. The DIN-rail form factor helps keep wiring organized inside cabinets, while the long fiber reach supports sensing tasks that require flexible head placement without compromising panel accessibility or protection. This variant is specifically configured for 12–24 VDC operation and is part of the broader PHOTOSWITCH lineup, ensuring compatibility with Allen-Bradley controllers and related accessories in established Rockwell Automation installations.