Allen-Bradley 855E-10DN8 Stack Light 50 Millimeter

Allen-Bradley 855E-10DN8 is a 50 mm Stack Light (Control Tower) light module intended for visual status indication on industrial panels and automation equipment. This 855E series unit uses a steady incandescent lamp (DN) and features a yellow lens, encoded by the part number as 855E-10DN8: DN = steady incandescent, 10 = voltage code for full‑voltage operation, and 8 = yellow lens color. The module is specified for 115 V AC full‑voltage operation in Rockwell catalog listings, and it carries a unique identifier of 855E-10DN8 with origin noted as Austria; lifecycle status is Active. As a 50 mm stack-light component, it is designed to be used in multi‑light towers to create a compact visual indicator on control panels or machine housings, commonly paired with other 50 mm modules to convey distinct machine states. Typical applications include signaling equipment status on conveyors, presses, and automated lines, where quick recognition of a running, idle, or fault condition is required. This description reflects verified details for this exact model, ensuring accurate specifications without extrapolation beyond what is published for the 855E‑10DN8 variant.