PW LADDER TRAY STANDARD RUNGS RUNG TYPE BH SOLID MECHANICAL PROPERTIES THICKNESS = 0.060 " MOMENT OF INERTIA: IX = 0.0227 IN4 SECTION MODULUS: SX = 0.0414 IN3 6 1.00 " 9 x x 0.97 " 6 9 12 SAFE LOAD LIMITS (LBS/FT) TRAY WIDTH (IN.) 24 18 n1 BX BX BX BX BX n2 BX BX BX BX BX n1 BX BX BX BX BX n2 BX BX BX BX BX 12 n1 BX BX BX BX BX n2 BX BX BX BX BX 18 n1 BX BX BX BX BX n2 BX BX BX BX BX 0.28 " UPGRADE RUNG This is the upgrade slotted rung for all steel ladder cable trays. SU rungs are installed alternating slot up and slot down. RUNG TYPE MECHANICAL PROPERTIES THICKNESS = 0.120 " SU SLOTTED†MOMENT OF INERTIA: IX = 0.0531 IN4 SECTION MODULUS: SX = 0.0921 IN3 6 1.63 " 9 x x 1.00 " 0.38 " 0.38 " RUNG SPACING 6 n1 3999 n2 3999 n1 3999 n2 3999 12* n1 3066 n2 3066 18 n1 2044 n2 2044 9 3999 3999 2725 2725 2044 2044 1363 1363 12 3066 3066 2044 2044 1533 1533 1022 1022 18 2044 2044 1363 1363 1022 1022 681 681 1533 1499 1022 1000 766 750 511 500 SAFE LOAD LIMITS (LBS/FT) TRAY WIDTH (IN.) 24 30 1226 1040 818 693 613 520 409 347 36 1022 733 681 489 511 366 341 244 42 876 514 584 343 438 257 292 171 48 766 350 511 233 383 175 255 117 0.28 " 30 816 388 544 259 408 194 272 129 M G This is the standard rung for all flange-out steel ladders and all flange-in, NEMA Class 20A, 20B, and 20C, hot-dipped galvanized steel ladders 30 " and 36 " wide. Please contact Legrand for catalog numbers if this rung is desired for other tray systems. 36 680 190 453 127 340 95 227 63 42 583 389 291 194 48 510 49 n3 340 33 n3 255 24 n3 170 16 n3 n1 SAFE LOAD/CABLE LOAD ONLY: Allowable uniformlydistributed 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. n2 SAFE LOAD / CABLE LOAD +200 LBS: Allowable uniformlydistributed 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. * Single rung load capacity: The data shown for 12 " rung spacing is equivalent to the load capacity of the single rung. n3 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. †Slotted rungs are installed alternating slot up and slot down. For detailed material and finish descriptions, see page B.6. WWW.LEGRAND.US/CABLOFIL B.57 METALLIC RUNG SPECIFICATIONS RUNG SPACING LOAD TYPE LOAD TYPEhttp://WWW.LEGRAND.US/CABLOFIL