The Allen-Bradley 855T-B10TL4 is a 70 mm Control Towerâ„¢ Stack Light module designed to provide clear and reliable visual signaling in industrial environments.
Key Features
- Voltage Rating: 120V AC
- Light Type: Steady LED
- Lens Color: Red
- Housing Color: Black
- Lens Material: Durable polycarbonate
- Module Type: Steady LED (socket mount)
- Enclosure Ratings: IP65, NEMA 4, 4X
- Operating Temperature Range: -25°C to 70°C
- Storage Temperature Range: -40°C to 85°C
- Shock Resistance: 35 G (for a 5-module stack with surface-mount base or 10 cm aluminum pole base)
- Vibration Resistance: 0.75 G (for a 5-module stack with surface-mount base or 10 cm aluminum pole base)
- Recommended Wire Size: 0.5 mm²
- Recommended Terminal Torque: 0.8 Nm
Applications
This stack light module is ideal for use in various industrial settings where clear visual indication is essential. Its robust design and high protection ratings make it suitable for environments requiring reliable signaling solutions.
Installation and Compatibility
The 855T-B10TL4 is designed for easy integration into existing systems, offering compatibility with other Allen-Bradley 855T series components. Its socket mount design ensures straightforward installation and maintenance.
Please note that the 855T-B10TL4 has been discontinued as of October 1, 2019. For functional replacements, consider the 856T-BT4 model.

















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