Overview
The Allen-Bradley 855T-BCB /B is a mounting base designed for 70mm Control Tower stack lights in industrial automation and facility signaling. This Series B base features a black polycarbonate housing and supports both surface mounting and 1/2-inch NPT conduit installation, providing flexibility for panel or wall-mounted configurations. The base ships without a cap, allowing seamless integration with modular stack light modules.
Key Features
- 70mm Control Tower stack light compatibility
- Dual mounting options: surface and 1/2″ NPT threaded conduit
- Black polycarbonate housing for industrial durability
- No cap design for modular stack light stacking
- Compact form factor (approximately 5.5″ height)
- Multiple international certifications (CE, CUL, UL, KC, C-TICK)
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Part Number: 855T-BCB /B (Series B)
- Application: 70mm Stack Light Mounting Base
- Mounting Type: Surface mount or 1/2″ NPT threaded conduit
- Housing Material: Polycarbonate
- Housing Color: Black
- Cap Design: No cap included
- Operating Temperature: -25 to +70°C (-13 to +158°F)
- Certifications: CE, CUL, UL, KC, C-TICK
- UPC: 662468933544
- Height: Approximately 5.5 inches
Typical Applications
- Manufacturing facility status indication and alert systems
- Machine tool and CNC equipment signaling towers
- Production line condition monitoring
- Warehouse and logistics area notification
- Industrial automation control panels requiring visual feedback
- Safety and maintenance work area signaling
Compatibility & Replacements
The 855T-BCB /B mounts standard 70mm Control Tower stack light modules, including steady and flashing indicator lights. The base integrates with the full Allen-Bradley 855T stack light family, including tower extensions and signal light modules. While this base ships as a no-cap version, it can be paired with the 855T-BCAP or 855T-BCBC cap assemblies for a complete stack light solution. For applications requiring a pre-assembled base-and-cap unit, the 855T-BCBC (Series B with cap) is a direct alternative. Always verify 70mm stack light module compatibility before ordering replacements.
