Construction of a 45-degree horizontal bend in a cable tray

A 45° horizontal bend allows cable trays to change direction smoothly by 45 degrees, ensuring secure cable support and efficient routing.

Purpose and Benefits

A 45° horizontal bend is used to redirect cable trays horizontally without abrupt turns, which helps reduce tension and potential damage to cables during installation and operation . These bends are particularly useful in navigating around structural obstacles, optimizing space, and maintaining organized cable management in commercial and industrial settings . They also preserve the structural integrity of the cable tray system while providing a stable support platform for cables .

Design and Compatibility

These bends are available in various materials such as aluminum or galvanized steel, offering durability and corrosion resistance . They are designed to fit different NEMA cable tray classes:

• Class 1: NEMA 12B and 12C, with 1 1/8" side rail flanges and 4-hole splice plates .
• Class 2: NEMA 20A, 20B, 20C, with 2" side rail flanges and 4-hole splice plates .
• Class 3: NEMA classes exceeding 20C, with 2 3/8" side rail flanges and 8-hole splice plates .
• Class 4: Heavy-duty systems with 2 3/4" side rail flanges and 8-hole splice plates . Horizontal bends can be left or right versions and are often pre-fabricated to simplify installation . They are available in standard angles like 30°, 45°, 60°, and 90° to meet specific routing requirements .

Installation Considerations

When installing a 45° horizontal bend:

• Ensure the bend aligns with the cable tray sections for a smooth directional change .
• Use appropriate splice plates and fasteners according to the tray class to maintain structural stability .
• Consider the bend radius to prevent excessive stress on cables, especially for sensitive or high-voltage wiring .

Applications

45° horizontal bends are widely used in:

• Industrial plants and factories
• Commercial buildings with complex cable routing
• Data centers and electrical rooms requiring organized cable management These bends enhance safety, longevity, and efficiency of cable tray systems while allowing flexible routing around obstacles .