Allen-Bradley 854J-24GL4 Flashing LED Indicator

The Allen-Bradley 854J-24GL4 is a 40 mm control-tower light module from Rockwell Automation’s 854J family that provides a red, flashing LED indicator for 24 V AC/DC control circuits. It operates from a 24 V supply at 50/60 Hz and draws about 28 mA, making it suitable for compact signaling in panel-mounted stack-light configurations. The GL4 designation marks a red lens variant of the 854J-24 series, designed to deliver a high-visibility flashing cue in automation environments and to integrate with existing 40 mm signaling towers. Use cases include signaling machine status, run/fault conditions, and other process-state indicators in manufacturing cells, packaging lines, and automated equipment control panels where a conspicuous red flash helps draw operator attention. As part of the Bulletin 854J line, it pairs with other 854J light modules to create a consistent, color-coded signaling scheme across equipment, simplifying installation and maintenance in Rockwell-centric control architectures.