Page 648 of Current Catalog by Moeller Electric USA

14/022 useful tables three-phase ac motors ac motor full-load current in amperes see notes 1 2 3 4 motor induction type squirrel cage and wound rotor rating amperes hp 115 v 230 v 460 v 575 v ½ 4 2 1 0.8 ¾ 5.6 2.8 1.4 1.1 1 7.2 3.6 1.8 1.4 1½ 10.4 5.2 2.6 2.1 2 13.6 6.8 3.4 2.7 3 ­ 9.6 4.8 3.9 5 ­ 15.2 7.6 6.1 7½ ­ 22 11 9 10 ­ 28 14 11 15 ­ 42 21 17 20 ­ 54 27 22 25 ­ 68 34 27 30 ­ 80 40 32 40 ­ 104 52 41 50 ­ 130 65 52 60 ­ 154 77 62 75 ­ 192 96 77 100 ­ 248 124 99 125 ­ 312 156 125 150 ­ 360 180 144 200 ­ 480 240 192 source table 44 canadian electrical code part 1 single-phase ac motors 1-phase ac motor full-load current in amperes see notes 1 2 3 4 motor rating amperes hp 115 v 230 v 1/6 4.4 2.2 1/4 5.8 2.9 1/3 7.2 3.6 1/2 9.8 4.9 3/4 13.8 6.9 1 16 8 1½ 20 10 2 24 12 3 34 17 5 56 28 7½ 80 40 10 100 50 source table 45 canadian electrical code part 1 notes 1 max number of conductors of one size in trade sizes of conduit or tubing size of conduit ½ ¾ 1 1¼ 1½ or tubing conductor type size awg kcmil 14 8 15 25 43 59 12 6 11 19 33 45 600 v 10 5 8 14 24 33 without 8 2 4 7 13 18 jacket 6 1 3 5 10 13 4 1 2 4 7 10 3 1 1 3 6 8 r90 2 1 1 3 5 7 xlpe 1 1 1 1 3 5 rw75 1/0 0 1 1 3 4 xlpe 2/0 0 1 1 2 3 3/0 0 1 1 1 3 rw90 4/0 0 0 1 1 1 xlpe 250 0 0 1 1 1 300 0 0 1 1 1 350 0 0 0 1 1 400 0 0 0 1 1 450 0 0 0 1 1 500 0 0 0 1 1 600 0 0 0 0 1 700 0 0 0 0 1 750 0 0 0 0 1 800 0 0 0 0 1 900 0 0 0 0 0 1000 0 0 0 0 0 1250 0 0 0 0 0 1500 0 0 0 0 0 1750 0 0 0 0 0 2000 0 0 0 0 0 source table 6 canadian electrical code part 1 2 2½ 3 3½ 4 4½ 5 6 3-phase general information 97 139 200 200 200 200 200 200 74 106 164 200 200 200 200 200 55 78 121 162 200 200 200 200 30 43 67 90 116 146 183 200 22 32 50 67 86 108 136 196 16 23 36 48 62 78 98 142 14 19 30 41 53 66 83 120 11 16 25 34 44 55 70 101 8 12 19 25 33 41 52 75 7 10 16 21 27 34 44 63 6 8 13 17 23 29 36 53 5 7 11 14 19 24 30 44 4 6 9 12 15 20 25 36 3 4 7 10 13 16 21 30 2 4 6 8 11 14 18 25 2 3 5 7 9 12 16 23 1 3 5 6 8 11 14 20 1 3 4 6 8 10 13 18 1 2 4 5 7 9 11 17 1 1 3 4 5 7 9 13 1 1 3 4 5 6 8 12 1 1 2 3 4 6 8 11 1 1 2 3 4 5 7 10 1 1 1 3 4 5 6 9 1 1 1 2 3 4 6 9 1 1 1 1 3 3 5 7 0 1 1 1 1 3 4 6 0 1 1 1 1 2 3 5 0 1 1 1 1 1 3 4 allowable ampacity for not more than 3 copper conductors in raceway or cable allowable ampacity based on ambient temperature of 30°c 60°c 75°c 85-90°c 110°c 125°c 200°c type tw types types these ampacities are only applicable rw75 tw75 r90 rw90 under special circumstances where the t90 nylon use of insulated conductors having this paper temperature rating are acceptable mineral-insulated cable 15 15 15 30 30 30 20 20 20 35 40 40 30 30 30 45 50 55 40 45 45 60 65 70 55 65 65 80 85 95 70 85 85 105 115 120 80 100 105 120 130 145 100 115 120 135 145 165 110 130 140 160 170 190 125 150 155 190 200 225 145 175 185 215 230 250 165 200 210 245 265 285 195 230 235 275 310 340 215 255 265 315 335 ­ 240 285 295 345 380 ­ 260 310 325 390 420 ­ 280 335 345 420 450 ­ 320 380 395 470 500 ­ 355 420 455 525 545 ­ 385 460 490 560 600 ­ 400 475 500 580 620 ­ 410 490 515 600 640 ­ 435 520 555 ­ ­ ­ 455 545 585 680 730 ­ 495 590 645 ­ ­ ­ 520 625 700 785 ­ ­ 545 650 735 ­ ­ ­ 560 665 775 840 ­ ­ size awg kcmil 14 12 10 8 6 4 3 2 1 0 00 000 0000 250 300 350 400 500 600 700 750 800 900 1000 1250 1500 1750 2000 2 3 4 for full-load current of 208 and 200 v motors increase the corresponding 230v motor full-load current by 10 and 15 respectively these values of motor full-load current are to be used as guides only where exact values are required e.g for motor protection always use those appearing on the motor nameplate these values of full load-motor current are for motors running at usual speeds and motors with normal torque characteristics motors built for especially low speeds or high torques may have higher full load currents and multi-speed motors will have full-load current varying with speed in which case the nameplate current ratings shall be used the voltages listed are rated motor voltages corresponding nominal system voltages are 120 and 240v refer to csa standard can3-c235 source table 2 canadian electrical code part 1

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