Allen-Bradley 855E-00XN6 Stack Light

Allen-Bradley 855E-00XN6 is a 50 mm Control Tower Stack Light module that provides a blue, steady status indication for industrial equipment. This variant is a no-lamp module, meaning the light source is supplied separately and paired with a compatible lamp module. It accepts 0 to 250 VAC or DC input, aligning with Rockwell’s Control Tower architecture that enables multiple light units to be combined into a single indicator tower. As part of the 855E family, it is designed for panel-mounted signaling on production lines, packaging machinery, or process equipment where a constant blue light communicates a specific condition, such as information or maintenance status. The 50 mm form factor fits standard mounting frames and integrates with the appropriate lamp module and wiring per Rockwell guidelines, offering a modular path to clear, at-a-glance status signaling in busy industrial environments.