Allen-Bradley 800T-PST16B Indicator Pilot Light

Allen-Bradley 800T-PST16B is an 18 mm blue indicator pilot light designed to accompany Allen-Bradley 800T pushbutton assemblies, delivering a compact, panel-mounted status cue in industrial control circuits and machine controls; the unit belongs to the 800T family and uses a blue lens to provide high-contrast visibility in harsh environments. It operates as a transformer-type pilot light with an incandescent lamp, and is specified for 120 V AC at 50/60 Hz, delivering a steady blue illumination when energized and enabling quick validation via the built-in push-to-test feature that lets technicians verify lamp operation without energizing the controlled circuit. Designed for 18 mm panel cutouts, the PST16B fits standard control panels and supports reliable visibility in demanding environments, serving as a clear signal for machine readiness, process activity, or fault states within automation setups that rely on compact, 800T small pilot light indicators. Although the 800T line includes multiple color options and configurations, the PST16B specifically provides blue illumination to support color-coded status signaling in multi-light panels, aligning with common industrial practices for differentiating active versus inactive states.