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Description

The Allen-Bradley 855T-BCB is a surface-mount conduit base in the 855T Control Tower Stack Light series, manufactured by Rockwell Automation. It is designed for use with 855T series 70 mm Control Tower Stack Light modules, including LED, incandescent, and audible types. Also referenced without the dash as 855TBCB. Refer to manufacturer documentation to confirm compatibility with your specific application.

This base provides a Five (5)-pin wired connection with an included 2-meter cable, allowing individual circuit wiring to stacked light and sound modules. It mounts via surface attachment or a 1/2 in. NPT threaded conduit entry and accepts the tower module stack directly on its top interface. The polycarbonate housing is black and rated for voltages up to 250V AC/DC.

The 855T-BCB was discontinued by Rockwell Automation on October 1, 2019. Users planning new installations should migrate to the 856T series; the functional 856T replacements for this base are the 856T-B24SNC (24V AC/DC), 856T-BA3SNC (120/240V AC, 3-circuit), and 856T-BA7SNC (120/240V AC, 7-circuit), all surface mount with 1/2 in. NPT thread.

Technical Specifications

Brand: Allen-Bradley
MPN: 855T-BCB
Type: Stack Light Mounting Base
Series: 855T Control Tower
Body Size: 70 mm
Mounting Type: Surface Mount / 1/2 in. NPT Conduit Mount
Conduit Thread Size: 1/2 in. NPT
Voltage Rating: 250V AC/DC (max)
Connection Type: 5-Pin with Cable
Cable Length: 2 m
Housing Color: Black
Housing Material: Polycarbonate
Operating Temperature: -25 to 70 degrees C
Certifications: CE, CUL, KC, UL, C-TICK
Weight: 0.11 lbs
Lifecycle Status: Discontinued (10/01/2019)
856T Functional Replacements: 856T-B24SNC (24V AC/DC), 856T-BA3SNC (120/240V AC, 3-circuit), 856T-BA7SNC (120/240V AC, 7-circuit)

Condition: Used. This part was removed from a working production environment.

Shipping & Handling

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Returns

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About ACME MRO Solutions

We started ACME MRO Solutions to fix something we kept running into as contractors — plants down, parts slow, surplus listings you couldn't trust. Our goal is simple: get YOU the right component fast, with an honest description, so you can get back to running.

We describe what we see. Used items show signs of use; if a part has visible wear, damage, or a missing component, the condition description will say so. We don't claim anything is tested unless we tested it — and we don't bench-test parts where testing isn't practical or revealing (feed-through modules, breakers, mechanical components). When we do test something, we'll say so explicitly.

If something is our fault, we don't work through it — we make it right. We are proud to serve American manufacturing. Your uptime is our bottom line.

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Questions? Talk to us.

Send a message through eBay. During business hours we typically respond within the hour. Whether you need to confirm compatibility before buying, request additional photos, ask about a cross reference, or work through something after delivery — message first and we'll figure it out together.