855T-B24TL3 | Allen-Bradley 70mm Control Tower Stack Light, 24V AC/DC
855T-B24TL3 | Allen-Bradley 70mm Control Tower Stack Light, 24V AC/DC
855T-B24TL3 | Allen-Bradley 70mm Control Tower Stack Light, 24V AC/DC
    855T-B24TL3 | Allen-Bradley 70mm Control Tower Stack Light, 24V AC/DC
855T-B24TL3 | Allen-Bradley 70mm Control Tower Stack Light, 24V AC/DC

855T-B24TL3 | Allen-Bradley 70mm Control Tower Stack Light, 24V AC/DC

Part #: 855T-B24TL3 Manufactured by: Allen-Bradley
$299.00
$299.00
2 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
Allen Bradley 855T-B24TL3 855T 70mm Control Tower Stack Light, Black Housing, 24V AC/DC Full Voltage, Green Steady LED (So...  Read more
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Product Description P/N: 855T-B24TL3

Description / Specifications

Description 

The Allen-Bradley 855T-B24TL3 is a steady LED lamp module designed for 70 mm stack light systems, providing bright and reliable green illumination. Operating at 24 VAC/DC, it delivers efficient signaling performance with low power consumption and durable LED technology.

 

 

Technical Specifications 

Brand Allen-Bradley
Part Number 855T-B24TL3
Lamp Type LED
Illumination Mode Steady
Lens Color Green
Series 855T
Voltage 24 VAC/DC
Current 35 mA
Power 7 W
Housing Color Black
Standards UL, CE, CCC, CUL, KC
Type Steady LED Lamp Module
Stack Diameter 70 mm
Weight 0.2 lb

  

 

Information About 855T-B24TL3

The 855T-B24TL3 is a steady green LED module from the Allen-Bradley 855T series, engineered for use in industrial stack light assemblies requiring high-visibility status indication. Designed to operate at 24 VAC/DC, it draws only 35 mA while providing clear signaling, making it suitable for a wide range of control and monitoring applications. The module features a robust black housing and is built to perform reliably in demanding environments, meeting global standards such as UL, CE, CCC, KC, and CUL. Its steady-on illumination mode ensures continuous, unambiguous indication for machine states, system conditions, or alert status. With its durable construction and long-life LED elements, the 855T-B24TL3 integrates easily into 70 mm stack configurations and maintains dependable operation with minimal maintenance.

Key Features:

  • Steady Green LED Output: Provides continuous and highly visible illumination for clear, unambiguous status indication.
  • 24 VAC/DC Operation: Compatible with both AC and DC control systems while maintaining low 35 mA current draw.
  • 70 mm Stack Light Compatibility: Integrates seamlessly into Allen-Bradley 855T modular stack light systems.
  • Durable Black Housing: Ensures mechanical protection and long-term reliability in industrial environments.
  • Global Certifications: Meets UL, CE, CCC, KC, and CUL standards for versatility in worldwide installations.
  • Long-Life LED Technology: Offers extended operating life with low maintenance requirements.
  • Easy Module Installation: Lock-in modular design simplifies assembly and replacement within stack light units.

The 855T-B24TL3 delivers the reliability and visibility required for machine monitoring, equipment signaling, and industrial status indication applications.

Frequently Asked Questions about 855T-B24TL3
Question: What is the 855T-B24TL3 used for?
Date Update:17/06/2025
Answer:

The 855T-B24TL3 is a sounder (audible) module used in Allen-Bradley's 855T tower light system. It provides an alert tone (often pulsed or continuous) in addition to visual stack lights. It is used for:

  • Machine or process status signaling
  • Audible alerts for alarms, start-up sequences, faults, or emergency conditions
Question: What voltage does the 855T-B24TL3 operate on?
Date Update:17/06/2025
Answer:
  • Operates on 24V AC or DC
  • Compatible with both industrial control voltage levels
  • Polarity protection for DC wiring

Always verify power supply matches your tower’s rating.

Question: How is the 855T-B24TL3 wired?
Date Update:17/06/2025
Answer:

Wiring is done through the terminal base unit (855T-B24). Signals are routed via:

  • Screw or spring-clamp terminals in the base
  • Each module (light or sound) receives power through internal bus
  • Audible module is activated by applying 24V to its assigned terminal (often terminal 6 or 7)

Use proper wire gauge (18–22 AWG) and verify wiring label on the base unit.

Question: Can I change the sound or volume of the 855T-B24TL3?
Date Update:17/06/2025
Answer:

Yes — many audible modules have:

  • Selectable tones (e.g., pulsed, continuous, warble)
  • Volume adjustment via dial or DIP switch (on the underside of the unit)
  • L3 variants typically default to loud settings but allow for tuning to ~80–100 dB

Refer to the product’s datasheet for sound configuration instructions.

Question: What position does the 855T-B24TL3 occupy in the stack light assembly?
Date Update:17/06/2025
Answer:
  • The audible module is installed on the top of the stack
  • It fits above all light modules and connects to the internal bus of the stack system
  • A sound cap or protective cover is provided

If installed in the wrong position, sound performance may be affected or blocked.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 855T-B24TL3 is a steady LED lamp module designed for 70 mm stack light systems, providing bright and reliable green illumination. Operating at 24 VAC/DC, it delivers efficient signaling performance with low power consumption and durable LED technology.

 

 

Technical Specifications 

Brand Allen-Bradley
Part Number 855T-B24TL3
Lamp Type LED
Illumination Mode Steady
Lens Color Green
Series 855T
Voltage 24 VAC/DC
Current 35 mA
Power 7 W
Housing Color Black
Standards UL, CE, CCC, CUL, KC
Type Steady LED Lamp Module
Stack Diameter 70 mm
Weight 0.2 lb

  

 

Information About 855T-B24TL3

The 855T-B24TL3 is a steady green LED module from the Allen-Bradley 855T series, engineered for use in industrial stack light assemblies requiring high-visibility status indication. Designed to operate at 24 VAC/DC, it draws only 35 mA while providing clear signaling, making it suitable for a wide range of control and monitoring applications. The module features a robust black housing and is built to perform reliably in demanding environments, meeting global standards such as UL, CE, CCC, KC, and CUL. Its steady-on illumination mode ensures continuous, unambiguous indication for machine states, system conditions, or alert status. With its durable construction and long-life LED elements, the 855T-B24TL3 integrates easily into 70 mm stack configurations and maintains dependable operation with minimal maintenance.

Key Features:

  • Steady Green LED Output: Provides continuous and highly visible illumination for clear, unambiguous status indication.
  • 24 VAC/DC Operation: Compatible with both AC and DC control systems while maintaining low 35 mA current draw.
  • 70 mm Stack Light Compatibility: Integrates seamlessly into Allen-Bradley 855T modular stack light systems.
  • Durable Black Housing: Ensures mechanical protection and long-term reliability in industrial environments.
  • Global Certifications: Meets UL, CE, CCC, KC, and CUL standards for versatility in worldwide installations.
  • Long-Life LED Technology: Offers extended operating life with low maintenance requirements.
  • Easy Module Installation: Lock-in modular design simplifies assembly and replacement within stack light units.

The 855T-B24TL3 delivers the reliability and visibility required for machine monitoring, equipment signaling, and industrial status indication applications.

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