Standard dimensions for 45-degree elbow cable trays

45-degree cable tray elbows typically have standard radii of 75 mm, 150 mm, or 300 mm, with flange widths depending on NEMA class and customization available.

Standard Radii and Types

• Horizontal 45° elbows often come with a diagonal corner radius of 75 mm as standard, with larger radii such as 150 mm or 300 mm available upon request for smoother cable transitions or larger cable diameters .
• Vertical 45° elbows are designed to connect straight sections while narrowing tray width. They are available in Class 1, 2, and 3, corresponding to NEMA tray classes, with side rail flange widths of 1 1/8", 2", and 2 3/8", respectively .
• Flat 45° elbows are fabricated using stainless steel angle plates and bolt sets, with custom dimensions available to suit specific installation requirements .

Material and Construction

• Most elbows are made from stainless steel or coated steel, ensuring durability and corrosion resistance.
• Bolt sets and splice plates are included for secure connections between straight sections and elbows.
• Customization is possible for radius, flange width, and overall dimensions to accommodate large cables or unique installation constraints .

Practical Considerations

• Choose the radius based on cable size and bend requirements; larger radii reduce stress on cables.
• Ensure flange width and bolt hole pattern match the existing cable tray system (NEMA class compatibility).
• For long spans or heavy cable loads, consider vertical elbows with appropriate side rail widths to maintain structural integrity .

In summary, 45-degree cable tray elbows are available in multiple radii and flange widths, with standard options for most installations and customization available for specialized requirements .