# Allen-Bradley 855T-B20DN4 Bulletin 855T 4-Module Stack Light, 20mm LED, Red/Amber/Green/Blue, Integrated Buzzer - MROSupply.com ***Allen-Bradley 855T-B20DN4 Bulletin 855T 4-module stack light with 20mm LED modules in red, amber, green, and blue for industrial machine status indication. Pre-assembled tower includes an integrated buzzer in the base for audible alerts. Modular design supports reconfiguration for run, fault, warning, and standby signaling in manufacturing and automation control panels.*** ## Product details: - Catalog number: 855T-B20DN4 - SKU: 5732304 - Price: ***$198.00*** Each - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [Allen Bradley](https://www.mrosupply.com/brands/allen-bradley/) - Category: - [Stack](htts://www.mrosupply.com/electrical/visual-audible-signaling/visual/stack/) - [Visual](htts://www.mrosupply.com/electrical/visual-audible-signaling/visual/) - [Visual & Audible Signaling](htts://www.mrosupply.com/electrical/visual-audible-signaling/) - [Electrical](htts://www.mrosupply.com/electrical/) - Unit of measure: each - Weight: 0.001 lb - Returns: Yes ## Product images: - https://static.mrosupply.com/images/noimage.webp ## Product documents / software: - [931-in009_-mu-e](https://documents.mrosupply.com/product_documents/57/22/5722287/931-in009_-mu-e_C0PZ8Io.pdf) - [Drawing](https://documents.mrosupply.com/product_documents/17/47/1747663/856T-BT20Dimensions_Csvbkdo.pdf) - [Installation Instructions](https://documents.mrosupply.com/product_documents/57/38/5738334/856t-in001_-en-e_X7XLAHc.pdf) - [Specifications](https://documents.mrosupply.com/product_documents/57/00/5700037/855-td001_-en-p_wNKPqGo.pdf) ## Product's reviews: - Do you need it? they got it - They have everything that you need, good prices, fast delivery. - Pressure switch - Very easy web site. I ordered my part and got in quick. My customer was happy. - Exellant - same as described, delivered on time. thank you - Great shopping - CORRECT ITEM AND FAST SHIPPING!!