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Allen-Bradley 855T-B24DN4
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 855T-B24DN4 is a high-performance 70mm stack light module engineered for demanding industrial signaling applications. This robust device features a vibrant red, steady incandescent light, providing immediate and unmistakable alerts in any operational environment. Operating efficiently on a versatile 24V AC/DC full voltage supply, it offers broad compatibility with various industrial systems. Encased in a durable, IP65-rated black enclosure, the 855T-B24DN4 is built to withstand harsh industrial conditions, including dust intrusion and water splashes, ensuring long-lasting reliability. Its modular design allows for seamless integration into existing or new Bulletin 855T stack light systems, offering flexibility and ease of installation for comprehensive signaling.Key Features Optimal Visibility: 70mm stack light module for impactful industrial signaling. Clear Indication: Emits a steady red incandescent light for highly visible status alerts. Versatile Power: Operates on 24V AC/DC, ensuring compatibility across diverse industrial power systems. Superior Durability: Robust black housing with an IP65 enclosure rating protects against dust and water. Modular Flexibility: Engineered for easy integration into the Bulletin 855T stack light system for flexible configuration. Reliable Performance: Allen-Bradley quality ensures consistent operation. Enhanced Safety: Provides critical visual cues to improve operational safety and efficiency. Technical Specifications Model: 855T-B24DN4 Light Type: Incandescent Light Color: Red Voltage: 24V AC/DC Mounting: Stackable modular system, compatible with Bulletin 855T series Housing Color: Black Enclosure Rating: IP65 (Protected against dust and water jets) Diameter: 70mm Light Mode: Steady Applications Industrial Machinery Status: Clearly indicates operational states like run, stop, fault, or warning. Factory Automation Signaling: Conveys critical information in automated production lines. Process Control and Warning: Provides immediate visual warnings for deviations or critical conditions. Warehouse and Logistics: Enhances safety by signaling forklift movements, loading dock status, or order fulfillment. Building Management Systems: Utilized for indicating HVAC status, security alerts, or access control. Safety Compliance: Integral for fulfilling safety regulations by providing clear visual alerts to personnel. Why Choose?When selecting industrial signaling solutions, the 855T-B24DN4 stands out for several compelling reasons. Its unwavering reliability, a hallmark of Allen-Bradley engineering, ensures long-term, dependable performance. The exceptional visibility provided by the 70mm red incandescent light cuts through industrial noise, guaranteeing signals are always seen. The robust, IP65-rated design ensures resilience in the most challenging industrial environments. Its seamless modular integration with the Bulletin 855T system offers unparalleled flexibility for custom signaling solutions and future expansion, while its durability minimizes replacement needs, presenting a cost-effective solution.Order NowInvest in the Allen-Bradley 855T-B24DN4 to elevate your industrial signaling systems. Experience superior visibility, reliability, and durability for critical status indications. Contact us today to secure this essential component for your operational needs.FAQWhat is the primary function of the Allen-Bradley 855T-B24DN4?The 855T-B24DN4 is designed to provide clear, immediate visual status indications in industrial environments using a steady red incandescent light.What voltage does this stack light module operate on?It operates on a versatile 24V AC/DC full voltage supply, ensuring compatibility with various industrial power systems.What kind of environmental protection does the 855T-B24DN4 offer?It features an IP65-rated black housing, providing excellent protection against dust ingress and water splashes, making it suitable for harsh industrial conditions.Is this module easy to integrate into existing systems?Yes, its modular design allows for seamless integration into existing or new Bulletin 855T stack light systems, offering flexibility and ease of installation.What applications is this stack light module best suited for?It is ideal for industrial machinery status, factory automation signaling, process control and warning alerts, warehouse and logistics notification systems, and building management systems.
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Allen-Bradley 855T-B24DN4
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: 855T-B24DN4
- Light Type: Incandescent
- Light Color: Red
- Voltage: 24V AC/DC
- Mounting: Stackable modular system, compatible with Bulletin 855T series
- Housing Color: Black
- Enclosure Rating: IP65 (Protected against dust and water jets)
- Diameter: 70mm
- Light Mode: Steady
Applications
- Industrial Machinery Status: Clearly indicates operational states like run, stop, fault, or warning.
- Factory Automation Signaling: Conveys critical information in automated production lines.
- Process Control and Warning: Provides immediate visual warnings for deviations or critical conditions.
- Warehouse and Logistics: Enhances safety by signaling forklift movements, loading dock status, or order fulfillment.
- Building Management Systems: Utilized for indicating HVAC status, security alerts, or access control.
- Safety Compliance: Integral for fulfilling safety regulations by providing clear visual alerts to personnel.
Why Choose the 855T-B24DN4?
When selecting industrial signaling solutions, the 855T-B24DN4 stands out for several compelling reasons. Its unwavering reliability, a hallmark of Allen-Bradley engineering, ensures long-term, dependable performance. The exceptional visibility provided by the 70mm red incandescent light cuts through industrial noise, guaranteeing signals are always seen. The robust, IP65-rated design ensures resilience in the most challenging industrial environments. Its seamless modular integration with the Bulletin 855T system offers unparalleled flexibility for custom signaling solutions and future expansion, while its durability minimizes replacement needs, presenting a cost-effective solution.
Availability & Shipping
- ▸In stock: 855T-B24DN4 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 855T-B24DN4 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.
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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.