Overview
The Allen-Bradley 855T-B24DN3 is a Control Towerâ„¢ modular stack light module from the 855T series, designed for visual machine status indication in industrial automation and manufacturing environments. This 70 mm diameter unit features a steady incandescent lamp with a green lens, ensuring high visibility. Operating at 24 VAC/DC with a power consumption of 7 watts and a current draw of 0.271 amps, this module integrates seamlessly into stackable signaling tower configurations for clear operator communication.
Key Features
- Steady-State Operation: Non-flashing incandescent lamp for continuous status signaling
- Green Lens Color: Highly visible and universally recognized signal color for indicating normal operation or safe status
- Compact 70mm Form Factor: Modular design allows stacking with other 855T modules to build custom signal towers
- Rugged Black Housing: Durable enclosure ensuring long-lasting performance even in demanding industrial environments
- Low Power Consumption: 7W operation with 0.271A current draw, suitable for relay and PLC control circuits
- Global Certifications: Certified to CE, CUL, KC, and UL standards, compliant with global requirements for international deployment
Technical Specifications
| Voltage Rating | 24 VAC/DC |
| Power Consumption | 7 W |
| Current Draw | 0.271 A |
| Lamp Type | Steady Incandescent |
| Lens Color | Green |
| Housing Color | Black |
| Module Size | 70 mm Diameter |
| Product Series | 855T Control Tower |
| Certifications | UL, CE, CUL, KC |
| Weight | 0.25 lbs |
| Condition | New – No Box |
Typical Applications
The 855T-B24DN3 is widely used in:
- Machine tool status indication (production ready, running, maintenance mode)
- Manufacturing line visual feedback and operator awareness systems
- Assembly line completion and quality check signaling
- Process condition monitoring and alarm status display
- Control panel and enclosure integrated signaling towers
- Warehouse and logistics equipment status indication
Compatibility & Replacements
Compatible With
- 855T Control Tower series bases and accessory modules
- 24V AC/DC relay and PLC output circuits
- Standard DIN-rail and panel-mount signaling tower configurations
- Allen-Bradley industrial control systems and automation networks
Replaces / Drop-In Replacement For
The 855T-B24DN3 is a specific 70mm steady green module. Verify exact module specifications (voltage, lamp type, lens color) before ordering as replacement. Similar modules in the 855T line include steady modules with different lens colors (red, amber, clear, blue) and equivalent voltage ratings. Consult your original equipment documentation or system integrator to confirm compatibility with existing tower bases.
Works With
- Allen-Bradley Studio 5000 Logix Designer (PLC control integration)
- PowerFlex variable frequency drives and soft starters
- Ethernet/IP, ControlNet, and legacy DeviceNet networks for supervisory monitoring
- Standard 24V AC/DC relay control logic and hardwired circuits
- Industrial automation signal tower systems and status management
