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WIRE MESH TRAY TECHNICAL GUIDE

First and foremost, a cable tray must act as an effective and durable support for cables. The mechanical performance of cable tray products and accessories are tested against the demanding requirements imposed by the NEMA VE-1 Underwriters Laboratories (UL) and international standard IEC 61537. These standards help ensure cable tray systems safety support cabling in a wide variety of applications.

LOAD TESTING

Legrand/Cablofil WMCT has been engineered and tested per NEMA VE-1 to support loads that exceed itÕs fill capacity. For additional data on load capacities and test methods, please visit www.legrand.us/cablofil.

LOAD TABLE

Loads in LBS/FT Per Span
Cablofil Tray Fill Area 5' 6' 7' 8'
CF30/50(1x2) 2.17" - - - -
CF30/100(1x4) 4.34" - - - -
CF30/150(1x6) 6.51" - - - -
CF30/200(1x8) 8.68" - - - -
CF30/300(1x2) 13.02" - - - -
CF54/50(2x2) 4.03" 32 15.1 11.1 9.1
CF54/100(2x4) 8.06" 39.4 22.3 16.4 15.9
CF54/150(2x6) 12.09" 46.5 27.6 20.3 19.1
CF54/200(2x8) 16.12" 54.2 36.4 26.7 24.7
CF54/300(2x12) 24.18" 71.6 47.1 34.6 31.7
CF54/400(2x16) 32.24" 134.9 91.0 66.8 60.3
CF54/450(2x18) 36.27" 134.9 91.0 66.8 60.3
CF54/500(2x20) 40.30" 119.4 95.4 70.1 62.8
CF54/600(2x24) 48.36" 119.4 95.4 70.1 62.8
CF105/100(4x4) 15.97" 68.3 46.4 34.1 30.5
CF105/150(4x6) 23.95" 98.4 60.2 44.3 40.9
CF105/200(4x8) 31.93" 109.4 76.2 56.0 51.9
CF105/300(4x12) 47.90" 142.0 126.8 93.1 89.2
CF105/400(4x16) 63.86" 151.0 129.9 95.4 88.7
CF105/450(4x18) 71.84" 151.0 129.9 95.4 88.7
CF105/500(4x20) 79.83" 151.0 129.9 95.4 88.7
CF105/600(4x24) 95.79" 151.0 129.9 95.4 88.7
CF150/150(6x6) 34.41" 127.5 123.0 90.4 89.1
CF150/200(6x8) 45.88" 127.5 123.0 90.4 89.1
CF150/300(6x12) 68.82" 175.9 155.0 113.9 98.3
CF150/400(6x16) 91.76" 175.9 155.0 113.9 98.3
CF150/450(6x18) 103.23" 175.9 155.0 113.9 98.3
CF150/500(6x20) 114.70" 228.5 165.7 121.7 91.3
CF150/600(6x24) 137.64" 228.5 165.7 121.7 91.3

SAFETY

In the event of critical overload, a mesh structure becomes like a hammock.

CABLOFIL is only designed to support cables. Under no circumstances should it be used as a walkway.

SAFE WORKING LOAD (SWL) OF
CABLOFIL SUPPORTS ACCORDING
TO IEC 61537 LOAD TESTING

Product Category Product Description Part No. SWL (daN) SWL (lbs)
Wall Supports CS Bracket CS100 72 158
CS200 67 147
CS300 70 154
CSC Bracket CSC100 35 77
CSC200 35 77
CSC300 32 70
FAS P Profile 280 616
FAS L Bracket FAS L100 130 286
FAS L150 110 242
FAS L200 85 187
FAS L300 65 143
FAS C Bracket FAS C100 120 264
FAS C200 80 176
FAS C300 50 110
FAS Universal Bracket FAS U100 30 66
FAS U150 70 154
FAS U200 80 176
FAS U300 80 176
FAS U400 110 242
FAS U500 150 330
CRP Reinforced Bracket CRP 400 280 616
CRP 500 260 572
CRP 600 320 704
Ceiling Supports AS Trapeze Hanging Clip AS B 100 220
SAS Hanger Bracket SAS B 60 132
Threaded Rod 1/4" THRD 1/4 107 240
3/8" THRD 3/8 325 730
1/2" THRD 1/2 601 1350

Safe Working Load (SWL) Calculation:
SWL = Load applied along bracket = Width of bracket (W)/divided by 20 W/20 is maximum acceptable deflection, for example 12"/20 = 0.6" of deflection maximum.

SAFE WORKING LOADS

While many Legrand/Cablofil supports utilized our Fast Assembly System (FAS) which offer simple one-step locking tabs that require no additional hardware to secure WMCT to supports, our WMCT have been tested to UL, CSA, NEMA VE-1 and IEC standards. Cablofil wire mesh tray and supports are designed to support any cable load allowed by the NEC when supports are spaced on 8Õ spans. Only the heaviest cables (750 kcmil mulitconductor power or larger) may require shorter spans. For specific loading go to the interactive table on www.legrand.us/cablofil and choose your exact cable for detailed cable capacity and span requirements.

POSITIONING OF THE SPLICE (general scenario applicable to all spans)

To get the best performance from tray, choosing the right couplers is just as important as their positioning. CABLOFIL couplers have been designed and tested to provide high levels of mechanical and electrical performance. To maximise performance, follow the recommendations below:

100% PERFORMANCE
For best results, place the couplers at 1/5th of the way along the span.

70% PERFORMANCE
If the coupling is at L/2, a coefficient of 0.7 should be applied to the permissible load.

Never put the support under coupler.

POSITIONING OF THE SUPPORTS

Changes of level and direction: Put supports in place before there is any deflection of the cable tray route. It is recommended to place supports at the start and end of 90¡ bends. A support must be positioned in the middle of large-radius bends.

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