Allen-Bradley 855T-BCBC Surface Mount Base Assembly

Allen-Bradley 855T-BCBC Surface Mount Base Assembly is the surface-mount foundation for Bulletin 855T control-tower stack lights, featuring a black housing and a 1/2-inch NPT conduit-mount interface for straightforward panel installations. In this BCBC configuration the unit is a surface-mount base with no cap option, providing the mounting plane and electrical connection point for modular 855T light assemblies. It is rated for 250V AC service and is specified as a Surface / 1/2" NPT conduit mount base, suitable for panel-mounted stack-light installations in industrial environments. This base is designed to support the lower portion of a complete 855T signaling tower by offering a stable mounting point and wiring entry for the modular 855T modules. The 855T signaling family, including surface-mount base variants, is documented by Rockwell Automation, confirming its role in assembling control-tower configurations and its compatibility with standard 855T modules in signaling and alerting applications. Manufacturers and distributors list the 855T-BCBC base alongside other 855T base variants, underscoring its role as the surface-mount base for this signaling family.