Straight Runs. Zero Hassle. Pure T Box™.
The Winnie Industries T Box™ is engineered for prefab efficiency, eliminating bends and offsets by letting conduit enter straight into the box. This offset‑free design streamlines layout, speeds installation, and cuts labor on every drop, making it a go‑to choice for repeatable, high‑volume assemblies. Its extra‑deep capacity supports dimmers, cameras, speakers, strobes, and other devices common in commercial and industrial builds.
Built from welded pre‑galvanized steel, the T Box™ delivers the durability and consistency prefab workflows demand. Multiple knockout options, a raised ground, and a flat, easy‑to‑ship profile all contribute to faster, cleaner, more predictable installs. Tested to UL 514‑A and CSA standards and listed for use with conduit, MC, or NM cable when paired with appropriate fittings, it provides a reliable, code‑compliant foundation for modern electrical layouts.
Get your free T Box sample kit and see the difference!
Level up your installs with the Winnie Industries T Box™—engineered for straight-entry conduit, rapid prefab integration, and smarter jobsite performance. Its signature “T” shape eliminates the need for conduit bends, saving time while simplifying even the most complex wiring layouts.
Extend the T Box™ advantage overhead—delivering straight‑entry conduit, cleaner ceiling runs, and a smoother path for every pull. Its offset‑free design keeps installations organized and efficient, helping crews move confidently through tight spaces while maintaining a sharp, professional finish.
Product Features
Eliminate Offsets
Easier Wire Pulls
Save Install Time & Labor Cost
Extra Capacity
Great Durability
UL and CUL Approved
Product Categories
Keep production moving with the T Box™—designed for repeatable setups, consistent results, and smoother assembly flow from station to station.
Applications
Effectively supports:
- Junctions, splices, conductor transitions, and branch‑circuit distribution
- Switches, receptacles, lighting fixture connections, and device mounting
- Multiple conductor runs splitting in two or more directions
- Deep‑profile devices including dimmers, smart controls, sensors, cameras, speakers, and strobes
- Control wiring, low‑voltage circuits, and terminal blocks in industrial environments
- Transitions between rigid and flexible conduit for equipment or machinery drops
- Fixture and luminaire support
- NEC‑required access points for conductor pulling and splice accessibility
Use in:
- Data Centers
- Commercial and Office Buildings
- Industrial and Manufacturing
- Warehouses and Distribution Centers
- Food and Beverage
- Restaurants and Bars
- Retail and Convenience Stores
- Hospitality and Convention Centers
- Hospitals and Medical Centers
- Schools and Colleges
- Energy and Renewables
- Theaters and Concert Venues
- Multi-Unit Buildings
- Transportation Hubs
- Government and Municipal Buildings
Standards & Certifications
All cULus Listed products meet the following UL standards: UL 514-A, CSA C22.2 No. 18.1
Please note not all items are cULus listed.
Looking for details, pricing, or samples? Reach out to our T Box™ specialists.
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Winnie Industries is committed to providing innovative electrical junction boxes to support the needs of various industries. Look to us to engineer and manufacture innovative solutions that uphold innovation, strength, and dependability.
Winnie Industries products must be installed and used strictly according to our product instruction sheets or designated training. They should never be utilized beyond their intended purpose or in a way that exceeds specified load ratings. Proper fastening support is critical for maintaining system integrity and functionality, requiring secure fastening to structural components. The structural elements where our products are installed must be structurally sound and capable of safely supporting imposed loads. All installations must comply with governing codes, regulations, and job site requirements. Always consult your Authority Having Jurisdiction (AHJ) for specific regulatory guidelines.