T Box™ – Do I need a bend here?

The T Box™ is an innovative electrical junction box alternative designed by Winnie Industries to streamline conduit installation. Unlike conventional junction boxes that require conduit offsets, the T Box allows conduit runs to enter directly, making the process more efficient while reducing labor costs. The extra deep capacity can accommodate large electrical components offering flexibility in various applications.

The Winnie Industries T Box™ is constructed from galvanized steel, ensuring durability and resistance to corrosion. Its welded design enhances strength and ease of use, making it a reliable choice for electrical installations.

The T Box™ comes in 4-inch square and 4-11/16-inch square configurations. These boxes offer extra deep capacity, making them ideal for housing larger electrical components. The 4" features 1/2-inch and 3/4-inch knockouts and the 4-11/16" features 1" and 3/4" main run knockouts.

Winnie Industries T Box™ offers a superior solution to conventional electrical junction boxes by combining innovative design with practical jobsite efficiency. Its spacious 43 or 60-cubic-inch capacity (depending on model) provides ample room for complex wiring configurations, apparatus, and future additions—reducing the need for multiple boxes or awkward wire bends. The welded steel “T” design allows straight conduit entry without the hassle of offsets or sweeps, significantly cutting installation time. Optimized for prefabrication, the T Box supports streamlined off-site assembly and faster deployment in the field. For contractors seeking performance, flexibility, and labor savings, the T Box represents a clear leap forward.

The Winnie Industries T Box™ offers a more advanced alternative to standard junction boxes through its unique welded steel “T” configuration, allowing straight conduit entry —eliminating conduit bends and saving installation time. With 60 cubic inches of capacity, it supports more complex wiring, larger devices, and future expansion than typical 4" square boxes. The box includes multiple multi-directional knockouts and is optimized for prefabrication, streamlining off-site assembly. Compliant with UL 514-A and CSA C22.2 No. 18.1, it’s also rated for 600V circuits without a bonding jumper. These features make it ideal for high-efficiency commercial and industrial projects where space, speed, and safety matter.

Winnie Industries T Box™ can be used in most places standard electrical junction boxes can be installed. They are commonly used in commercial and industrial environments to house wiring for lighting, outlets, and equipment. They’re mounted on walls, ceilings, strut, or machinery, providing a protected path for conductors. In assembly line or factory environments, they serve as connection hubs for power, controls, and sensors, often integrated into modular conduit racks or suspended from overhead structures. Whether part of a direct field install or prefabricated system, conduit-fed junction T Boxes offer clean, code-compliant wire management with flexible routing and simplified maintenance.

Yes, the Winnie Industries T Box™ can be used in residential settings, particularly for above ceiling installations where depth constraints are less restrictive. While primarily designed for commercial and industrial applications, it is adaptable for multi-dwelling units (MDUs) and residential projects where deeper junction boxes are needed. However, its depth poses challenges for standard 2x4 in wall use, which typically require shallower boxes.

Yes, the Winnie Industries T Box™ meets key industry standards for electrical junction boxes. It is tested in accordance with UL 514-A, which governs metallic outlet boxes, and is also certified to CSA C22.2 No. 18.1, the Canadian standard for similar applications. These certifications confirm that the T Box complies with safety, performance, and construction requirements for use in commercial and industrial electrical systems—making it suitable for installations up to 600 volts and acceptable for use without a bonding jumper under NEC 250.96(B).

The Winnie T Box™ offers multiple versatile mounting options to suit commercial and industrial applications. It can be installed to strut using a bolt and strut nut, suspended from threaded rod with top-and-bottom nuts, or clipped to ceiling wire using a batwing clip. For bar hanger setups, it’s fastened with screws and supported via a conduit clip. The T Box includes a #10-32 tapped hole for grounding and is compatible with conduit, MC, or NM cable when paired with appropriate fittings. Designed with flexibility and prefab in mind, it installs quickly and complies with NEC and local codes when mounted to a structurally sound surface.

The Winnie Industries T Box™ is compatible with EMT, flexible, and rigid metal conduit, as well as MC, AC, and NM cable when used with listed fittings. Its multiple knockouts and spacious interior make it ideal for a wide range of wiring methods in commercial, industrial, and prefab applications.

Yes, the National Electrical Code (NEC) outlines specific spacing and support requirements to ensure conduit systems are mechanically secure and electrically safe. For most metallic conduit types like EMT (Electrical Metallic Tubing), RMC (Rigid Metal Conduit), and IMC (Intermediate Metal Conduit), the NEC requires that conduit be supported at intervals not exceeding 10 feet and secured within 3 feet of every junction box, panel, or termination point. For non-metallic conduit such as PVC, the support spacing is more stringent—typically every 3 feet for trade sizes up to 1 inch, with slightly longer intervals allowed for larger sizes. These requirements help prevent sagging, reduce mechanical strain on fittings and conductors, and maintain the integrity of the electrical system over time. Proper use of conduit clamps, hangers, and brackets is essential to meet these standards and pass inspection.