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Round Magnet Wires (International Units) Manufacturing Standards: NEMA MW-1000 NTC 361 SINGLE FILM1

BARE WIRE SIZE AWG

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

DOUBLE FILM (HEAVY FILM)

APPROX. MINIMUM MAXIMUM APPROX. MINIMUM MAXIMUM APPROX. SECTION WEIGTH INCREMENT DIAMETER WEIGTH INCREMENT DIAMETER WEIGTH 2 (mm ) MINIMUM NOMINAL MAXIMUM (kg/km) (mm) (mm) (kg/km) (mm) (mm) (kg/km) DIAMETER (mm)

4.074 3.630 3.231 2.878 2.563 2.281 2.032 1.811 1.613 1.435 1.278 1.138 1.013 0.902 0.805 0.716 0.635 0.569 0.505 0.450 0.399 0.358 0.318 0.284 0.251 0.224 0.201 0.178 0.157 0.140 0.124 0.112 0.099 0.086 0.076

4.115 3.665 3.264 2.906 2.588 2.304 2.052 1.829 1.628 1.450 1.290 1.151 1.024 0.912 0.813 0.724 0.643 0.574 0.511 0.455 0.404 0.361 0.320 0.287 0.254 0.226 0.203 0.180 0.160 0.142 0.127 0.114 0.102 0.089 0.079

4.135 3.683 3.282 2.921 2.601 2.316 2.062 1.839 1.636 1.458 1.298 1.156 1.029 0.917 0.818 0.726 0.645 0.577 0.513 0.457 0.406 0.363 0.323 0.290 0.257 0.229 0.206 0.183 0.163 0.145 0.130 0.117 0.104 0.091 0.081

13.30 10.55 8.37 6.63 5.26 4.17 3.31 2.63 2.08 1.65 1.31 1.04 0.824 0.653 0.519 0.412 0.325 0.259 0.205 0.163 0.128 0.102 0.0804 0.0647 0.0507 0.0401 0.0324 0.0254 0.0201 0.0158 0.0127 0.0102 0.00817 0.00622 0.00490

118.23 93.79 74.39 58.96 46.76 37.06 29.40 23.36 18.51 14.68 11.62 9.250 7.321 5.807 4.615 3.660 2.887 2.300 1.823 1.445 1.140 0.9099 0.7150 0.5751 0.4505 0.3566 0.2877 0.2262 0.1787 0.1408 0.1126 0.09074 0.07264 0.05531 0.04358

0.041 0.038 0.036 0.036 0.033 0.030 0.030 0.028 0.028 0.025 0.025 0.023 0.023 0.020 0.020 0.018 0.018 0.015 0.015 0.013 0.013 0.010 0.010 0.008 0.008 0.005 0.005

1.692 1.509 1.349 1.207 1.077 0.963 0.861 0.770 0.686 0.617 0.551 0.493 0.439 0.396 0.356 0.320 0.284 0.254 0.231 0.206 0.183 0.163 0.147 0.132 0.119 0.104 0.094

18.69 14.83 11.75 9.354 7.409 5.884 4.680 3.715 2.932 2.342 1.856 1.473 1.164 0.9290 0.7340 0.5900 0.4630 0.3670 0.2970 0.2340 0.1850 0.1460 0.1160 0.09400 0.07400 0.05700 0.04500

0.089 0.086 0.084 0.081 0.079 0.076 0.074 0.071 0.081 0.076 0.074 0.071 0.066 0.064 0.058 0.056 0.053 0.051 0.048 0.046 0.043 0.041 0.041 0.038 0.036 0.033 0.030 0.028 0.025 0.023 0.020 0.020 0.018 0.015 0.015

4.244 3.787 3.383 3.020 2.695 2.408 2.151 1.923 1.732 1.547 1.384 1.240 1.110 0.993 0.892 0.798 0.714 0.643 0.577 0.516 0.462 0.417 0.373 0.338 0.302 0.274 0.249 0.224 0.198 0.178 0.160 0.145 0.130 0.114 0.102

119.2 94.6 75.1 59.6 47.3 37.5 29.8 23.7 18.83 14.95 11.85 9.440 7.482 5.947 4.732 3.760 2.970 2.375 1.883 1.496 1.184 0.9460 0.7480 0.6030 0.4740 0.3770 0.3050 0.2410 0.1900 0.1500 0.1200 0.09700 0.07700 0.05900 0.04600

MAXIMUM WINDING TENSION2 (kg)

79.5 63.1 50.0 39.7 31.5 24.9 19.8 15.7 12.4 9.87 7.82 6.22 4.92 3.91 3.10 2.46 1.94 1.55 1.23 0.972 0.767 0.612 0.481 0.387 0.303 0.240 0.194 0.152 0.120 0.0947 0.0758 0.0610 0.0489 0.0372 0.0293

Notes: 1. NEMA MW-1000 Standard specify Single Layer magnet wire for 14 AWG size and below. 2. Maximum winding tension to avoid wire strecht, based on a maximum strenth of 5.98 kg/mm2. 3. DC resistance calculated based on a 17.241 ohm-mm2/km resistivity. 4. Current density based on 0.101 and 0.152 mm2/A for Thermal Class of 200°C and 155°C. 5. Data herein indicated are approximate and are subject to normal manufacturing tolerances.

14

CURRENT DC DENSITY 4 (A) RESISTANCE THERMAL CLASS at 20°C 3 155°C 200°C (ohm/km)

1.296 1.634 2.060 2.599 3.278 4.135 5.213 6.562 8.283 10.44 13.19 16.57 20.93 26.39 33.21 41.88 53.09 66.63 84.07 106.0 134.5 168.4 214.4 266.5 340.3 429.8 532.7 677.5 857.5 1089 1361 1689 2110 2771 3517

87 131 69 104 55 83 44 65 35 52 27 41 22 33 17 26 14 21 11 16 8.6 13 6.8 10 5.4 8.1 4.3 6.4 3.4 5.1 2.7 4.1 2.1 3.2 1.7 2.6 1.3 2.0 1.1 1.6 0.84 1.3 0.67 1.0 0.53 0.79 0.43 0.64 0.33 0.50 0.26 0.40 0.21 0.32 0.17 0.25 0.13 0.20 0.10 0.16 0.083 0.13 0.068 0.10 0.053 0.080 0.041 0.061 0.032 0.048

Magnet wire  

Magnet wire

Magnet wire  

Magnet wire

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