SR Rung

Standard rung for 8" and larger siderail cable trays. Designed for extremely heavy load applications. This profile will accept strut hardware and accessories. Trays which use this rung will have a load depth equal to the side rail height minus 1 5/8". SR rungs are installed alternating slot up and slot down.

RUNG TYPE MECHANICAL PROPERTIES
SR
SLOTTED† Minumum thickness = 0.102"
Moment of Inertia: 1x = 0.1848 in4
Section Modulus: Sx = 0.2039 in3
RUNG
SPACING
LOAD
TABLE
SAFE LOAD LIMITS (LBS/FT)
TRAY WIDTH (IN.)
6 9 12 18 24 30 36 42 48
6"
1
9999 8700 6525 4350 3262 2610 2175 1864 1631
2
9999 8700 6525 4350 3262 2610 2175 1864 1576
9"
1
8700 5800 4350 2900 2175 1740 1450 1243 1087
2
8700 5800 4350 2900 2175 1740 1450 1243 1050
12"*
1
6525 4350 3262 2175 1631 1305 1087 932 816
2
6525 4350 3262 2175 1631 1305 1087 932 788
18"
1
4350 2900 2175 1450 1087 870 725 621 544
2
4350 2900 2175 1450 1087 870 725 621 525
1

Safe Load/Cable Load Only: Allowable uniformly-distributed cable load expressed in lbs/linear foot of tray length, based on the load carrying capability of the rung with a safety factor of 1.5. To convert Safe Load/Cable Load Only to reflect a safety factor of 2.0, multiply the safe loads shown by 0.75.

2

Safe Load / Cable Load +200 lbs: Allowable uniformly-distributed cable load expressed in lbs/linear foot of tray length, based on the load carrying capability of the rung with a 200 lb. concentrated static load applied at the center of the rung, without collapse.

3

Will not support a 200 lb. concentrated static load applied at the center of the rung.

[XX] Two digit code in the safe load limit tables indicates recommended rung option for specified width.

* Single rung load capacity: The data shown for 12" rung spacing is equivalent to the load capacity of the single rung.

† Slotted rungs are installed alternating slot up and slot down.