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841TECHNICAL DATADATA SUBJECT TO CHANGE WITHOUT NOTICE.Wireway Size and Maximum Number of Conductors Allowed (areas shown are 20% of the full interior cross sectional area of the wireway)Conductor Size AWG-MCMArea of Conductor (sq. In.) 2.5\(1.14 sq.in.) 4.0\(3.02 sq.in.) 6.0\(6.94 sq.in.) 8.0\(12.45 sq.in.) 10.0\(19.56 sq.in.) 12.0\(28.27 sq.in.) XHHW, ZW, XHHW-2, XHW2/0 0.2027 5 14 34 61 96 1393/0 0.2463 4 12 28 50 79 1144/0 0.3000 3 10 23 41 65 94XHHW, ZW, XHHW-2, XHW14 0.0139 82 217 499 895 1407 203312 0.0181 62 166 383 687 1080 156110 0.0243 46 124 285 512 804 11638 0.0437 26 69 146 284 447 6466 0.0590 19 51 117 211 331 4794 0.0814 14 37 85 152 240 3473 0.0962 11 31 72 129 203 2932 0.1146 9 26 60 108 170 2461 0.1534 7 19 45 81 127 1841/0 0.1825 6 16 38 68 107 1542/0 0.2190 5 13 31 56 89 1293/0 0.2642 4 11 26 47 74 1074/0 0.3197 3 9 21 38 61 88250 0.3904 2 7 17 31 50 72300 0.4536 2 6 15 27 42 62350 0.5166 2 5 13 24 37 54400 0.5782 1 5 12 21 33 48500 0.6984 1 4 9 17 28 40600 0.8709 1 3 7 14 22 32700 0.9923 1 3 6 12 19 28750 1.0532 1 2 6 11 18 26800 1.1122 1 2 6 11 17 25900 1.2351 0 2 5 10 15 221000 1.3519 0 2 5 9 14 201250 1.7180 0 1 4 7 11 161500 2.0157 0 1 3 6 9 141750 2.3127 0 1 3 5 8 122000 2.6073 0 1 2 4 7 10KF-2, KFF-218 0.0031 367 974 2238 4016 6309 911916 0.0044 259 686 1577 2829 4445 642514 0.0064 178 471 1084 1945 3056 441712 0.0093 122 324 746 1338 2103 303910 0.0139 82 217 499 895 1407 2033KF-1, KFF-118 0.0026 438 1161 2669 4788 7523 1087316 0.0037 308 816 1875 3364 5286 764014 0.0055 207 549 1261 2263 3556 514012 0.0083 137 363 836 1500 2356 3406The 2008 National Electrical Code limits wireways as followsA wireway shall not contain more than 30 current-carrying conductors exept when the ampacity has been adjusted to Table 310-15(b) 2 (a)The sum of the cross sectional area of all conductors shall not exceed 20% of the interior cross sectional area of the wireway. Note section 14 of NTPA 79 allows 50% fill for industrial machine wireway. * Types RHH, RHW, and RHW-2 without outer coveringWIREWAYS FILL TABLES LAY-IN & FEED-THROUGH TYPE 1 & 4 (BASED ON THE NATIONAL ELECTRICAL CODE)