Overview
The Allen-Bradley 855T-B24TL5 is a 70 mm stack light module engineered for industrial machinery status indication and process control visualization. This steady amber LED module integrates seamlessly into multi-segment tower systems to communicate machine states, warnings, and operational conditions. Rated for 24V AC/DC operation with low 45 mA current draw, it provides energy-efficient illumination in factory, production, and facility automation environments.
Key Features
- Steady LED Illumination — Amber lens delivers constant, unmistakable visual status indication without flashing
- Low Power Consumption — 45 mA at 24V (7W maximum) reduces electrical load on control circuits
- Dual Voltage Supply — Operates on both AC and DC power for flexible integration into existing control systems
- Industrial Certifications — CE, CUL, UL, and KC marked for global compliance and safety
- BA15d Socket — Standard base connector for straightforward module swaps and tower configuration
- Black Housing — Durable powder-coated enclosure; fits standard 855T tower bases and pole mounting assemblies
Technical Specifications
The 855T-B24TL5 module meets the stringent demands of industrial automation and machine vision applications:
- Supply Voltage: 24V AC/DC (nominal)
- Current Draw: 45 mA
- Power Rating: 7W maximum
- Lens Color: Amber
- Module Type: Steady LED (non-flashing)
- Socket Type: BA15d (standard lamp base)
- Housing: Black color-coded plastic
- Certifications: CE, CUL, UL, KC, CCC
- Series: C (70 mm tower lights)
Typical Applications
Engineers deploy the 855T-B24TL5 across diverse manufacturing and automation platforms:
- Assembly line status towers communicating run, idle, and fault conditions
- Machine tool visual feedback indicating spindle speed, coolant status, or tool change states
- Warehouse and production floor safety signaling for material flow and personnel alerts
- Process control indication in pharmaceutical, beverage, and food manufacturing systems
- Equipment room or utility cabinet status display for facility management
Compatibility & Replacements
Note: The 855T-B24TL5 was discontinued by Rockwell Automation as of October 1, 2019. The functional replacement module is the 856T-BT5, which offers advanced LED performance and extended operational life. This 855T-B24TL5 surplus unit remains fully operational and compatible with all standard 855T-series tower bases including 855T-BSB (stack base) and 855T-BCB (compact base), as well as pole-mount assemblies 855T-BPM10, 855T-BPM25, and 855T-BPM40.

