Upper end of cable tray tee

The upper end of a cable tray tee is typically a vertical tee fitting that allows cables to branch upward from a main tray run, compatible with various NEMA class cable trays.OverviewA vertical tee (or "tee up") is a cable tray fitting designed to connect a horizontal tray to a vertical branch, enabling cables to move upward while maintaining structural support and alignment. These fittings are essential for multi-level cable routing in industrial, commercial, and utility installations .Types and CompatibilityVertical tees are classified according to NEMA standards:Class 1: For NEMA 12B and 12C trays, with 1-1/8″ wide side rail flanges and 4-hole splice plates .Class 2: For NEMA 20A, 20B, and 20C trays, with 2″ wide side rail flanges and 4-hole splice plates .Class 3: For trays exceeding NEMA 20C, with 2 3/8″ wide side rail flanges and 8-hole splice plates .Class 4: For heavy-duty 8″ high cable tray systems, with 2 3/4″ wide side rail flanges and 8-hole splice plates .Materials and FinishesVertical tees are available in multiple materials and finishes to suit environmental and load requirements:Mild steel pre-galvanized (PG)Mild steel hot-dip galvanized (HDG)Stainless steel grade 1.4404 (316L) (SS) Covers, either closed or ventilated, can be added to protect cables from dust or mechanical damage .ApplicationsIndustrial and commercial buildings: For routing power, data, and control cables vertically between floors or equipment levels.Flexible installations: Vertical tees allow branching without cutting or bending the main tray excessively.Heavy-duty systems: Designed to support the weight of multiple cables while maintaining NEMA compliance .Installation ConsiderationsEnsure the vertical tee matches the NEMA class and tray width of the main cable tray.Use appropriate splice plates and fasteners to secure the tee to the main tray.Consider load ratings and cable weight to prevent sagging or structural failure.Optional covers can be installed for additional protection in dusty or industrial environments . Vertical tees provide a reliable solution for upward cable routing, maintaining both structural integrity and compliance with industry standards.