BX Rung
This is the standard rung for all flange-out steel ladders and all flange-in, NEMA Class 20A, 20B, and 20C, hot-dip galvanized steel ladders 6"- 24" wide. Please contact Legrand®/Cablofil for catalog numbers if this rung is desired for other tray systems.
| RUNG TYPE | MECHANICAL PROPERTIES | |
BX |
SOLID | Minumum thickness = 0.048" Moment of Inertia: Ix = 0.0188 in4 Section Modulus: Sx = 0.0343 in3 |
| RUNG SPACING |
LOAD TABLE |
SAFE LOAD LIMITS (LBS/FT) | ||||||||
| TRAY WIDTH (IN.) | ||||||||||
| 6 | 9 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | ||
| 6" | 1 |
3243 | 2162 | 1621 | 1081 | 811 | BH | BH | BH | BH |
2 |
3243 | 2162 | 1561 | 774 | 381 | BH | BH | BH | BH | |
| 9" | 1 |
2162 | 1441 | 1081 | 721 | 540 | BH | BH | BH | BH |
2 |
2162 | 1441 | 1041 | 516 | 254 | BH | BH | BH | BH | |
| 12"* | 1 |
1621 | 1081 | 811 | 540 | 405 | BH | BH | BH | BH |
2 |
1621 | 1081 | 781 | 387 | 190 | BH | BH | BH | BH | |
| 18" | 1 |
1081 | 721 | 540 | 360 | 270 | BH | BH | BH | BH |
2 |
1081 | 721 | 520 | 258 | 127 | BH | BH | BH | BH | |
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.
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.
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.