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Advantages of Flextray wire basket tray

Flextray wire basket tray and splices out performs many other mesh trays, helping ensure the integrity and quality of cable pathways.

Choosing the right wire basket tray

In today’s competitive market, the contractor, engineer, specifier and owner must balance cost and quality.  When it comes to cable management, it is imperative to understand the quality and reliability of the tray.

For example, wire basket trays can look similar, but they may not always perform the same.  Choosing the right wire basket tray is critical to help avoid downtime and rework. 

Flextray solution

Eaton’s B-Line series Flextray wire basket tray and splices out preforms many other mesh trays, helping ensure the integrity and quality of cable pathways. Flextray wire basket tray and splices were tested in accordance with NEMA 1 using the simple beam configuration – which is one of the worst-case scenarios for tray testing.

Splice requirement calculations

With Interpolation of the height and the width of the wire basket tray, the user can easily calculate the correct splice connection quantity required. The chart provides the best guidance for a strong, reliable attachment for continuation of the run of tray, as well as a positive connection not based on friction.
flextray-splice-calculation-chart.jpg

Understanding load and safety factor

Eaton has maintained the 1.5 safety factor used to design and document the load ratings of the Flextray wire basket tray system.  (see chart below or refer to the B-Line series cable tray catalog)

The chart shows the optimal use of supports as needed based on the fill capacity and load being applied. The full-sized wire diameter is consistent across all Flextray wire basket tray sizes, rather than changing diameters which would impact deflections from size to size. 

By doing so, this provides a specifier predictability and simplifies the load assessment responsibility.

Catalog number Rail height Load Depth Span load
lb/ft
6'
Span load
lbs/ft
8'
Available widths
FT2X2X10 2.380" 2.000" 28 20 2"
FT2X4X10 2.380" 2.000" 43 27 4"
FT2X6X10 2.380" 2.000" 47 27 6"
FT2X8X10 2.380" 2.000" 47 27 8"
FT2X12X10 2.380" 2.000" 47 27 12"
FT2X18X10 2.380" 2.000" 47 27 18"
FT2X20X10 2.380" 2.000" 47 27 20"
FT2X24X10 2.380" 2.000" 47 27 24"
FT4X4X10 4.380" 4.000" 49 36 4"
FT4X8X10 4.380" 4.000" 77 46 8"
FT4X12X10 4.380" 4.000" 83 47 12"
FT4X18X10 4.380" 4.000" 83 47 18"
FT4X20X10 4.380" 4.000" 83 47 20"
FT4X24X10 4.380" 4.000" 89 50 24"
FT6X12X10 6.380" 6.000" 86 48 12"
FT6X18X10 6.380" 6.000" 89 50 18"
FT6X20X10 6.380" 6.000" 98 55 20"
FT6X24X10 6.380" 6.000" 107 60 24"

Example: FT4X18X10 is a popular cable tray size and it can hold over 700 cables per foot at a loaded weight of 36 Lbs. per foot for Cat 5E cables. The rated load of our tray is 47 Lbs. at an 8 ft span, if the trays were made with a smaller wire as is the case with some other manufacturers the load capacity could be as low as 27 Lbs. per ft and that means you could only fill the tray to 25% of its volume capacity.

The minimal amount of material savings dollars using a lighter duty tray or non-positive attachments could result in shorter support spans and deflections that require more supports, in the end it could result in a higher total installed cost. 

Conclusion

Eaton’s B-Line series Flextray wire basket system provides consistency with wire diameters and loads.  This allows for predictability and reliability of performance, making Flextray ideal for carrying fiber optic, data, control cables and conductors in commercial, institutional and data center applications. 

To learn more, visit Eaton.com/Flextray.

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