Cable tray flat tee specifications

Cable tray flat tee fittings are available in light, medium, and heavy-duty configurations, typically made from galvanized steel, stainless steel, or aluminum, and are designed to connect three cable tray runs at a T-junction.

Material and Duty Ratings

Cable tray flat tees are manufactured in galvanized steel, stainless steel, or aluminum, with duty ratings classified as light, medium, or heavy depending on load requirements and application environment. Heavy-duty options are suitable for industrial installations with higher cable loads, while medium-duty tees are commonly used in commercial settings.

Dimensions and Configuration

Flat tee fittings are designed to connect three cable tray sections at a 90-degree junction, forming a T-shape. Dimensions vary by manufacturer and duty rating, and bespoke sizes are often available. Standard features include: Side rails: Two longitudinal rails with transverse rungs or solid surfaces for cable support.

Rung spacing: Typically 6, 9, or 12 inches apart for ladder-type trays; radius-fitting rungs may have 9-inch spacing at the center. Cable-bearing surface: Minimum width of 7/8 inch with radius edges to prevent cable damage. Splice connections: Bolted type using serrated flange locknuts or proprietary systems like UniKlip® for faster installation.

Compliance and Standards

Cable tray flat tees are generally UL listed and comply with NEMA VE 1 standards for ladder-type trays. They are suitable for use as equipment grounding conductors when properly installed.

C

E marking may apply for European products, indicating compliance with relevant directives.

Installation Notes

Fasteners: Couplers, bolts, nuts, and washers are typically required but may not be included with the fitting and should be ordered separately. Load capacity: Determined by the tray's duty rating and material; heavy-duty tees support higher cable loads. Compatibility: Ensure the tee matches the width and type of the connecting cable trays (ladder, solid-bottom, or wire mesh).

Summary

Cable tray flat tees provide a robust and standardized method to branch cable runs at T-junctions. Selection should consider material, duty rating, dimensions, compliance standards, and installation requirements to ensure safe and efficient cable management in commercial or industrial environments.