Allen-Bradley 855E-24BR4 Stack Light Red Strobe

Allen-Bradley 855E-24BR4 is a 50 mm control-tower stack light module with a red strobe that runs on 24 V AC or DC at full voltage, drawing about 70 mA. As part of the 855E family, this xenon-based light serves as a high-visibility status indicator on industrial equipment, signaling alarms or fault conditions with a bright red glow. Key specifications include a 50 mm lens, red color, 24 V AC/DC input, and a 70 mA current draw; the module is designed for use within 855E control-tower assemblies. Note that Rockwell Automation announced the discontinuation of the 50 mm 855E light modules as of December 31, 2025, so availability may be limited; verify current stock with distributors before purchasing.