Allen-Bradley 42EF-E1EZB-Y4 Photoswitch Transmitted Beam Source is the emitter component of a two-part photoswitch system used in industrial automation. It provides the transmitted beam for a photoelectric sensor pair, working with a matching receiver to detect interruptions in the beam. The 42EF-E1EZB-Y4 designation identifies this specific transmitter module in Allen-Bradley’s Photoswitch line.
