Allen-Bradley 855T-B12GC4 Indicator Light

Allen-Bradley 855T-B12GC4 is a 70 mm control tower stack light module from the 855T family, designed for panel mounting with a black housing and socket-mount illumination. It operates on 12V AC/DC full voltage and features a red flashing LED accompanied by an audible alert, delivering both visible and audible signaling for machine status or faults. As a modular element of the 855T lineup, it can be paired with other light modules to form a multi-layer signaling tower on control panels, conveyors, or automated production cells, enabling quick recognition of operating conditions across a line. The unit’s socket-mount configuration and rugged construction suit demanding industrial environments, offering clear visibility in typical factory lighting and ease of integration within standard Allen-Bradley 855T installations. With a dedicated socket-mount interface, it simplifies replacement and upgrades within existing 855T towers, letting technicians swap in a single module without rewiring.