Overview
The Allen-Bradley 855T-G24DN4 is a modular red stack light beacon designed for the Bulletin 855T control tower system. This 70mm light module delivers high-intensity, flashing red signaling for industrial alarm and warning applications. Operating on 24V AC/DC power, it integrates seamlessly into standard 855T tower bases and stacking configurations, making it ideal for assembly lines, warehouses, and equipment control stations where immediate visual feedback is critical.
Key Features
- High-intensity red flashing incandescent beacon for maximum visibility in industrial environments
- 24V AC/DC operation for compatibility with control systems and low-voltage power supplies
- Modular design allows stacking with other 855T light and sound modules to create custom signal combinations
- Durable construction rated for industrial shock and vibration exposure
- Compatible with standard 855T bases including surface mount, pole, and DeviceNet configurations
Technical Specifications
The 855T-G24DN4 module is engineered to specification with the following parameters:
- Voltage Rating: 24V AC/DC
- Lens Color: Red
- Light Type: Flashing Incandescent
- Module Size: 70mm
- Housing Color: Black
- Mounting: Stackable modular design compatible with 855T bases
Typical Applications
- Assembly Lines: Signal specific operational states or machine status to assembly line personnel for improved efficiency and safety coordination
- Warehouse Operations: Indicate loading/unloading activities, equipment status, or safety alerts to optimize logistics flow
- Manufacturing Equipment: Provide immediate visual alarm feedback on production machinery and process conditions
- Facility Safety: Alert personnel to hazardous conditions, equipment faults, or emergency shutdowns with high-visibility red signaling
- Equipment Control Stations: Communicate operational status and warning states at centralized control points
Compatibility & Replacements
Compatible With
- Bulletin 855T standard bases (855T-BSB, 855T-BCB surface mount bases)
- 855T aluminum pole bases (10cm, 25cm configurations)
- DeviceNet-compatible 855T bases
- 855T light modules, sound modules, and combination light/sound modules for custom stacking
- 24V AC/DC control relay outputs and programmable logic controller (PLC) outputs
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering. The 855T-G24DN4 is a specific variant designed for flashing operation; alternative models (such as the 855T-B24DN4 steady incandescent or other color/function variants) may not be direct replacements depending on your application requirements.
Works With
- Allen-Bradley ControlLogix, CompactLogix, and MicroLogix programmable controllers via discrete or networked outputs
- Industrial control relays and electromechanical contactors for 24V signal switching
- Solid-state output modules with dry contact or relay output capability
- DeviceNet communication networks (DeviceNet-capable base models)
- Manual control panels and push-button stations for operator-initiated signaling
