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Allen-Bradley 856T-BT4
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 856T-BT4 Control Tower Stack Light Module delivers crucial visual signals for industrial operations. This 70mm component features a bright red, steady LED within a protective black casing. Engineered for seamless integration into control tower stack light setups, the 856T-BT4 provides operators with clear, unmistakable visual feedback on machine states or processing alerts. With a 24V AC/DC full voltage rating and an IP65 enclosure grade, this module is an excellent selection for uses requiring superior visibility, unwavering dependability, and straightforward assimilation into current industrial frameworks. Its robust design guarantees endurance in demanding industrial settings.Key Features High-Visibility Red LED: Delivers immediate visual cues for significant machine or process conditions, boosting operational safety and effectiveness. Durable IP65-Rated Construction: Offers strong defense against dust and water intrusion, ensuring enduring performance in industrial environments. Optimal 24V AC/DC Full Voltage: Provides consistent and dependable electrical supply for high-performance visual signaling across various industrial applications. Seamless Integration: Specifically engineered for straightforward and adaptable connection with existing Allen-Bradley Control Tower Stack Light systems, simplifying installation. Compact 70mm Module: Space-efficient design allows for flexible mounting and arrangement in diverse industrial configurations. Black Housing Design: Presents a professional look while safeguarding internal components. Versatile Application: Suitable for industries such as automated manufacturing, material handling, and process control systems. Technical Specifications Model: 856T-BT4 Size: 70mm Voltage: 24V AC/DC Full Voltage Light Type: Red Steady LED Housing Color: Black Enclosure Rating: IP65 (dust-tight and water-resistant) Functionality: Visual indicator for equipment status or alarms Mounting: Compatible with Allen-Bradley Control Tower Stack Light systems Application: Ideal for industrial settings and process control systems Applications Automated Manufacturing Lines: Supplies vital visual information for machine operational status, production progression, and fault conditions. Material Handling Systems: Indicates equipment movement, conveyor status, and possible bottlenecks, enhancing logistics and safety. Process Control Environments: Provides critical visual warnings for shifts in temperature, pressure, flow, or system alerts, enabling rapid response. Food & Beverage Production: Guarantees precise communication of machine conditions in sensitive areas, assisting with compliance and output. Packaging & Assembly Lines: Signals operational readiness, product count achievements, and emergency stops, optimizing overall production efficiency. Automotive Manufacturing Facilities: Facilitates efficient communication on assembly lines, painting booths, and quality control stations. Why Choose?Choosing the Allen-Bradley 856T-BT4 Stack Light Module ensures reliable performance and enhanced safety in demanding industrial environments. This module offers an efficient visual signaling solution, often reducing the need for costly HMI integrations for basic status updates.Order NowEquip your industrial systems with the dependable visual signaling of the Allen-Bradley 856T-BT4. Contact us today to place your order and improve your operational efficiency and safety.FAQWhat is the primary function of the Allen-Bradley 856T-BT4?It provides clear visual indications for industrial equipment status, process control, and immediate alerts.Is this module suitable for harsh industrial conditions?Yes, its IP65 rating ensures protection against dust and water, making it ideal for challenging environments.Can the 856T-BT4 be integrated into existing systems?Absolutely, it's designed for seamless integration with current Allen-Bradley Control Tower Stack Light systems.What color is the LED light on this module?The module features a high-visibility red steady LED light.What voltage does the 856T-BT4 operate on?It operates on a 24V AC/DC full voltage, providing consistent power for reliable signaling.
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Allen-Bradley 856T-BT4
Overview
This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Model: 856T-BT4
- Size: 70mm
- Voltage: 24V AC/DC Full Voltage
- Light Type: Red Steady LED
- Housing Color: Black
- Enclosure Rating: IP65 (dust-tight and water-resistant)
- Functionality: Visual indicator for equipment status or alarms
- Mounting: Compatible with Allen-Bradley Control Tower Stack Light systems
- Application: Ideal for industrial settings and process control systems
Applications
- Automated Manufacturing Lines: Supplies vital visual information for machine operational status, production progression, and fault conditions.
- Material Handling Systems: Indicates equipment movement, conveyor status, and possible bottlenecks, enhancing logistics and safety.
- Process Control Environments: Provides critical visual warnings for shifts in temperature, pressure, flow, or system alerts, enabling rapid response.
- Food & Beverage Production: Guarantees precise communication of machine conditions in sensitive areas, assisting with compliance and output.
- Packaging & Assembly Lines: Signals operational readiness, product count achievements, and emergency stops, optimizing overall production efficiency.
- Automotive Manufacturing Facilities: Facilitates efficient communication on assembly lines, painting booths, and quality control stations.
Why Choose the 856T-BT4?
Choosing the Allen-Bradley 856T-BT4 Stack Light Module ensures reliable performance and enhanced safety in demanding industrial environments. This module offers an efficient visual signaling solution, often reducing the need for costly HMI integrations for basic status updates.
Availability & Shipping
- ▸In stock: 856T-BT4 ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 856T-BT4 ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
Related Allen-Bradley resources
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.