Allen-Bradley 855T-B24GL4 Stack Light Base

Allen-Bradley 855T-B24GL4 Stack Light Base is a 70 mm control-tower base designed to accept 855T stack-light modules and create a visible, multi-color signaling tower on industrial equipment. The B24GL4 variant operates at 24V AC/DC and delivers a red flashing LED indication when paired with compatible light modules, making it suitable for high-priority status signaling. Up to five modules can be stacked on a single base, and mounting options include surface bases or pole assemblies to fit a range of machine layouts. As part of the 855T Stack Light family, the base provides standardized sockets and mounting to simplify installation and future maintenance in control panels, manufacturing lines, and process areas where clear, continuous signaling is required.