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Round Magnet Wires 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

APPROX. SECTION WEIGTH (cmil) MINIMUM NOMINAL MAXIMUM (lb/1000 pies) DIAMETER (mils)

160.4 142.9 127.2 113.3 100.9 89.8 80.0 71.3 63.5 56.5 50.3 44.8 39.9 35.5 31.7 28.2 25.0 22.4 19.9 17.7 15.7 14.1 12.5 11.2 9.9 8.8 7.9 7.0 6.2 5.5 4.9 4.4 3.9 3.4 3.0

162.0 144.3 128.5 114.4 101.9 90.7 80.8 72.0 64.1 57.1 50.8 45.3 40.3 35.9 32.0 28.5 25.3 22.6 20.1 17.9 15.9 14.2 12.6 11.3 10.0 8.9 8.0 7.1 6.3 5.6 5.0 4.5 4.0 3.5 3.1

162.8 145.0 129.2 115.0 102.4 91.2 81.2 72.4 64.4 57.4 51.1 45.5 40.5 36.1 32.2 28.6 25.4 22.7 20.2 18.0 16.0 14.3 12.7 11.4 10.1 9.0 8.1 7.2 6.4 5.7 5.1 4.6 4.1 3.6 3.2

26244 20822 16512 13087 10384 8226 6529 5184 4109 3260 2581 2052 1624 1289 1024 812.3 640.1 510.8 404.0 320.4 252.8 201.6 158.8 127.7 100.0 79.21 64.00 50.41 39.69 31.36 25.00 20.25 16.00 12.25 9.610

79.46 63.03 49.99 39.63 31.43 24.91 19.76 15.70 12.44 9.866 7.809 6.216 4.920 3.903 3.101 2.460 1.940 1.546 1.225 0.9714 0.7659 0.6115 0.4805 0.3865 0.3027 0.2397 0.1934 0.1520 0.1201 0.0946 0.0757 0.0610 0.04882 0.03717 0.02928

DOUBLE FILM (HEAVY FILM)

MINIMUM MAXIMUM APPROX. MINIMUM MAXIMUM APPROX. INCREMENT DIAMETER WEIGTH INCREMENT DIAMETER WEIGTH (lb/kft) (lb/kft) (mils) (mils) (mils) (mils)

1.6 1.5 1.4 1.4 1.3 1.2 1.2 1.1 1.1 1.0 1.0 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.2 0.2

66.6 59.4 53.1 47.5 42.4 37.9 33.9 30.3 27.0 24.3 21.7 19.4 17.3 15.6 14.0 12.6 11.2 10.0 9.1 8.1 7.2 6.4 5.8 5.2 4.7 4.1 3.7

12.56 9.966 7.897 6.286 4.979 3.954 3.145 2.497 1.970 1.574 1.247 0.9899 0.7823 0.6243 0.4933 0.3965 0.3112 0.2466 0.1996 0.1573 0.1243 0.09812 0.07796 0.06317 0.04973 0.03831 0.03024

3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 3.2 3.0 2.9 2.8 2.6 2.5 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6

167.1 149.1 133.2 118.9 106.1 94.8 84.7 75.7 68.2 60.9 54.5 48.8 43.7 39.1 35.1 31.4 28.1 25.3 22.7 20.3 18.2 16.4 14.7 13.3 11.9 10.8 9.8 8.8 7.8 7.0 6.3 5.7 5.1 4.5 4.0

80.11 63.57 50.45 40.02 31.77 25.19 20.01 15.91 12.65 10.05 7.964 6.344 5.028 3.997 3.180 2.527 1.996 1.596 1.265 1.005 0.7957 0.6358 0.5027 0.4052 0.3185 0.2534 0.2050 0.1620 0.1277 0.1008 0.08065 0.06519 0.05175 0.03965 0.03091

MAXIMUM WINDING TENSION2 (lb/kft)

175 139 110 87.4 69.4 55.0 43.6 34.6 27.4 21.8 17.2 13.7 10.9 8.61 6.84 5.43 4.28 3.41 2.70 2.14 1.69 1.35 1.06 0.853 0.668 0.529 0.427 0.335 0.265 0.209 0.167 0.135 0.108 0.0820 0.0646

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

0.3951 0.4981 0.6280 0.7923 0.9990 1.260 1.589 2.000 2.525 3.182 4.021 5.051 6.381 8.044 10.12 12.76 16.18 20.31 25.62 32.32 40.99 51.34 65.34 81.23 103.7 131.0 162.4 206.5 261.4 331.8 414.8 514.8 643.1 844.7 1072

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 8500 psi. 3. DC resistance calculated based on a 10.729 ohm-cmil/ft resistivity. 4. Current density based on 200 and 300 cmil/A for Thermal Class of 200°C and 155°C. 5. Data herein indicated are approximate and are subject to normal manufacturing tolerances.

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87 131 69 104 55 83 44 65 35 52 27 41 22 33 17 26 14 21 10.9 16 8.6 13 6.8 10.3 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 1.07 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 0.105 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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