Cable Tray Side Rails

The mechanical properties of cable tray side rails for straight tray sections are shown for all standard systems. Side rails used for fittings may have slightly different dimensions since they must be suitable for bending into curved sections. Fitting side rails are designed to meet or exceed the loading requirements of the straight tray sections with which they are used when supported per NEMA VE2 installation guidelines. Although the cross-sectional dimensions of the fitting side rails may be slightly different than the straight section side rails, all aspects of fitting design are in accordance with NEMA VE1 requirements. Please contact Legrand®/Cablofil for detailed information on fitting side rails.

C-CHANNEL
A
RAIL
HEIGHT
NEMA
CLASS
1x
Moment of inertia
(in4)
Sx
Section modulus
(in3)
4" 12A 0.7535 0.3941
12B 0.9956 0.5408
12C, 16A 1.3103 0.7598
20A, 16B 1.7705 0.9375
20B, 16C 2.7046 1.5453
5" 12A 1.3397 0.5627
12B 1.6506 0.7076
12C, 16A 2.0907 0.9300
20A, 16B 2.6388 1.1159
20B, 16C 3.5761 1.5821
20C 4.3300 1.9833
6" 12B 2.1541 0.7440
12C, 16A 3.2002 1.1684
20A, 16B 3.5648 1.2637
20B, 16C 5.0542 1.8492
20C 5.7681 2.1460
20C+ 6.946 2.5485
8.619 2.8728
7" 12B 3.2158 0.9470
12C, 16A 3.8439 1.1523
20A, 16B 5.2747 1.5872
20B, 16C 6.7165 2.1027
20C 8.2632 2.5692
20C+ 10.3354 3.2979
16.1136 4.6039
I-BEAM
A
8" 20C+ 25.8 7.11
26.3 7.38
10" 70.4 15.3
C-CHANNEL
M G
RAIL
HEIGHT
NEMA
CLASS
1x
Moment of inertia
(in4)
Sx
Section modulus
(in3)
4" 12B 0.6214 0.3517
12C, 16A 0.7417 0.4110
20A, 16B 1.0593 0.5860
20B, 16C 1.3781 0.7984
20C 1.7934 1.0044
5" 12B 1.0785 0.4796
12C, 16A 1.2925 0.5645
20B, 16C 2.3334 1.0632
20C 3.1670 1.4398
6" 12B 1.7047 0.6234
12C, 16A 1.7873 0.6733
20B, 16C 2.7718 1.0001
20C 3.4185 1.2324
7" 12B 2.5243 0.7830
12C, 16A 2.6403 0.8411
20B, 16C 4.0298 1.2366
20C 4.9763 1.5260
I-BEAM
G
8" 20C+ 18.5 4.62
30.8 7.81
10" 68.9 13.8