Allen-Bradley 800T-QS24A Pilot Light

Allen-Bradley 800T-QS24A is an 18 mm pilot light from the 800T family, designed to mount with Allen-Bradley 800T push-button bodies and standard 18 mm panel cutouts, delivering a compact, color-defined indicator for control panels used in manufacturing and process automation. It uses a 24 V AC/DC incandescent lamp and is cataloged as the amber version of the 18 mm QS pilot-light family, enabling a clearly distinguishable amber indication on enclosures where rapid visual recognition is essential for operator awareness and safety. This full-voltage variant operates directly from 24 V AC/DC without an external transformer, matching the electrical load characteristics of typical 800T button assemblies and simplifying installation, field replacement, and system compatibility across Rockwell Automation control panels. Common applications include signaling machine status, start/stop indicators, and process alarms on control panels in manufacturing, packaging lines, automotive assembly, and other industrial environments where robust, quick-read amber indicators improve operator response and reduce downtime. When paired with compatible 800T components, the QS24A maintains consistent color and illumination across Rockwell installations, supporting standardized panel indicators in both new builds and retrofits and helping integrators preserve visual language across multiple machines and lines.