Allen-Bradley 45FVL-2LHE-A2 Photoswitch Fiber Optic Sensor

Allen-Bradley 45FVL-2LHE-A2 Photoswitch Fiber Optic Sensor is a DIN-rail mounted fiber-optic photoelectric sensor that uses a small-aperture fiber path and a visible red emitter to detect targets through barriers in compact installations. It provides a PNP output and is designed for 12–24 V DC operation with a 2 m cable for straightforward wiring. The unit offers manual sensitivity adjustment and Teach capability to tailor its sensing response to specific targets, and it carries CE certification for use in industrial environments. This model is part of the PHOTOSWITCH family and is configured for fiber-optic sensing with a small-aperture pathway, making it suitable where direct line-of-sight is limited. Rockwell Automation lists the 45FVL-2LHE-A2 as discontinued as of July 1, 2020, with 46DFA-L2LBT1-A2 named as its functional replacement. Its 600 µs response time supports fast detection in automation, and the configuration includes a 2 m cable length for convenient integration into control panels. The visible red light source and small-aperture fiber optic sensing mode are key features that enable precise detection in confined spaces, while the sensitivity adjustments and teach capability help optimize performance for varied applications.