Allen-Bradley 855T-B24DN5 Stack Light Module

The Allen-Bradley 855T-B24DN5 is a 70 mm control-tower stack-light module featuring amber steady-incandescent illumination and a black housing, designed to mount on Allen-Bradley 855T stack-light bases. It operates from a 24 V AC/DC supply and is color-coded amber through a dedicated amber lens for clear status signaling in industrial environments. As part of the 855T signaling family, this module stacks with other light modules to build multi-color indicators on a single machine, enabling operators to distinguish states at a glance. Typical applications include signaling run/stop status, fault or process-signal indicators on manufacturing lines, packaging equipment, conveyors, and automated process systems. The 855T-B24DN5 designation identifies 24-volt operation with amber, steady-incandescent illumination and a black housing, compatible with standard 70 mm control-tower form-factor bases in Rockwell Automation installations. Because it is a standalone, replaceable signal module, it can be integrated or swapped in existing 855T stacks without altering other modules, helping maintain consistent visual signaling across lines. This part is commonly sold as a single amber signal module to complement other colors in a multi-light stack, offering straightforward visibility in bright plant environments and aligning with Rockwell's 855T family for cohesive signaling across control panels and equipment.