Allen-Bradley 42GRL-9002-QD is a Guardmaster safety component that serves as the Transmitted Beam Emitter in Rockwell Automation’s safety-beam family, designed to work with Guardmaster sensors in guarding circuits. It accepts a wide power input from 70 to 264 VAC or DC and draws approximately 15 mA, with a SPDT electromecanical (EM) relay output. Used in industrial safety applications, this emitter supports interlock and monitoring in safety systems that rely on transmitted-beam or retroreflective photoelectric sensing to help safeguard personnel around machinery.
