A cable tray can be converted into a three-way connector using a tee fitting or a branch piece, often requiring on-site modifications for proper alignment and connection.

Using Tee Fittings

A tee fitting is the standard method to create a three-way junction in a cable tray system. It has three connectors that allow one main tray to split into two branches or merge two branches into one main line. Tee fittings are available in various materials and finishes, including steel, aluminum, and stainless steel, to match the tray system and environmental requirements . They can be used with ventilated, solid, or wire mesh trays depending on the application .

Using Branch Pieces

In some cases, a branch piece can be used instead of a tee. Branch pieces typically have one connector and require the main tray to be cut or modified on-site to accommodate the branch. This method is often faster and can be practical in field installations, but it requires careful alignment to maintain structural integrity and proper cable support . Real-world examples exist where branch pieces are attached using screws or clamps after trimming the main tray edge .

Clamp Connectors and On-Site Modifications

Clamp connectors are versatile components that can join trays in straight lines or after bending them to form curves, slopes, or tees. They are particularly useful when creating custom three-way connections without pre-fabricated tees. The trays may need to be cut, bent, or aligned before clamping to ensure a secure and stable connection . Hanging clips and threaded rods can also be used to support the junction and maintain proper spacing for cables .

Considerations

• Ensure the minimum bend radius for cables is maintained to prevent damage .
• Choose materials compatible with the environment to prevent corrosion or mechanical failure .
• Verify that the connection provides adequate support for the weight of the cables and any future additions .
• For wire mesh trays, clamps and screws are commonly used to secure the junction while keeping cables accessible .

By combining tee fittings, branch pieces, and clamp connectors, a cable tray system can be effectively converted into a three-way connector while maintaining safety, accessibility, and structural integrity.