Allen-Bradley 855TS-B24F4 Stack Light Tower Flashing Incandescent

Allen-Bradley 855TS-B24F4 is a 70 mm control tower stack light designed for surface or PG16 conduit mounting with cap, housed in black, and configured as a four‑position, pre‑assembled unit. It operates on 24 V AC/DC full voltage and uses a red, flashing incandescent lamp at the level(s) configured in the stack, enabling rapid visibility of status or alarm conditions on industrial equipment. This four‑module stack supports distinct, high‑contrast signaling on busy production floors, and is part of Rockwell’s 855T/855E signaling family designed for reliable machine indication with a compact, modular form factor suitable for panel mounting or mounted enclosures. Applications include conveying line status, fault or process alerts, and general process signaling in manufacturing and packaging environments where a clear, attention‑getting visual cue is needed. The black housing and standardized mounting options help integrate with other Rockwell Automation signaling modules while maintaining a clean control panel aesthetic.