Allen-Bradley 800T-PSDT16A Pilot Light

Allen-Bradley 800T-PSDT16A is an 18 mm amber pilot light from the 800T family, designed for panel mounting in control cabinets and operator stations. The PSDT16A designation identifies a Push-to-Test type with dual-input transformer capability, suitable for 120 V AC circuits (50/60 Hz) using an incandescent lamp rather than LED. This compact indicator fits standard 18 mm panel cutouts and pairs with other 800T pushbutton components to provide a visible amber signal for machine status, fault indication, or readiness across industrial equipment. The device operates from a 120 V AC supply and relies on an incandescent lamp element, offering familiar brightness and color for traditional control panels. Typical applications include indicating run/stop states on motors, conveyors, presses, and automated lines, or serving as a status beacon in safety interlock circuits, where a reliable amber indication helps operators quickly assess equipment condition. The 800T-PSDT16A variant is manufactured by Allen-Bradley (Rockwell Automation) and is used wherever a compact, testable amber pilot light is required within Rockwell’s 800T ecosystem, ensuring consistent interface language with other 800T components and compatible mounting hardware.