{"id":317,"date":"2024-09-17T18:25:25","date_gmt":"2024-09-17T18:25:25","guid":{"rendered":"https:\/\/leech.caltech.edu\/wp\/?page_id=317"},"modified":"2024-09-19T20:20:15","modified_gmt":"2024-09-19T20:20:15","slug":"american-wire-gauge","status":"publish","type":"page","link":"https:\/\/leech.caltech.edu\/cntl\/?page_id=317","title":{"rendered":"American Wire Gauge"},"content":{"rendered":"\n
\n
<\/div>\n<\/div>\n\n\n\n

The diameters of electrical wires are designated by their \u201cAWG\u201d number. Smaller numbers are thicker wires. <\/p>\n\n\n\n

AWG<\/th>Diameter (inch)<\/th>Diameter (mm)<\/th>Resistivity (\u03a9\/km)<\/th>Max. current (A)<\/th><\/tr><\/thead>
6<\/td>0.162<\/td>4.1148<\/td>1.295928<\/td>37<\/td><\/tr>
7<\/td>0.1443<\/td>3.66522<\/td>1.634096<\/td>30<\/td><\/tr>
8<\/td>0.1285<\/td>3.2639<\/td>2.060496<\/td>24<\/td><\/tr>
9<\/td>0.1144<\/td>2.90576<\/td>2.598088<\/td>19<\/td><\/tr>
10<\/td>0.1019<\/td>2.58826<\/td>3.276392<\/td>15<\/td><\/tr>
11<\/td>0.0907<\/td>2.30378<\/td>4.1328<\/td>12<\/td><\/tr>
12<\/td>0.0808<\/td>2.05232<\/td>5.20864<\/td>9.3<\/td><\/tr>
13<\/td>0.072<\/td>1.8288<\/td>6.56984<\/td>7.4<\/td><\/tr>
14<\/td>0.0641<\/td>1.62814<\/td>8.282<\/td>5.9<\/td><\/tr>
15<\/td>0.0571<\/td>1.45034<\/td>10.44352<\/td>4.7<\/td><\/tr>
16<\/td>0.0508<\/td>1.29032<\/td>13.17248<\/td>3.7<\/td><\/tr>
17<\/td>0.0453<\/td>1.15062<\/td>16.60992<\/td>2.9<\/td><\/tr>
18<\/td>0.0403<\/td>1.02362<\/td>20.9428<\/td>2.3<\/td><\/tr>
19<\/td>0.0359<\/td>0.91186<\/td>26.40728<\/td>1.8<\/td><\/tr>
20<\/td>0.032<\/td>0.8128<\/td>33.292<\/td>1.5<\/td><\/tr>
21<\/td>0.0285<\/td>0.7239<\/td>41.984<\/td>1.2<\/td><\/tr>
22<\/td>0.0253<\/td>0.64516<\/td>52.9392<\/td>0.92<\/td><\/tr>
23<\/td>0.0226<\/td>0.57404<\/td>66.7808<\/td>0.729<\/td><\/tr>
24<\/td>0.0201<\/td>0.51054<\/td>84.1976<\/td>0.577<\/td><\/tr>
25<\/td>0.0179<\/td>0.45466<\/td>106.1736<\/td>0.457<\/td><\/tr>
26<\/td>0.0159<\/td>0.40386<\/td>133.8568<\/td>0.361<\/td><\/tr>
27<\/td>0.0142<\/td>0.36068<\/td>168.8216<\/td>0.288<\/td><\/tr>
28<\/td>0.0126<\/td>0.32004<\/td>212.872<\/td>0.226<\/td><\/tr>
29<\/td>0.0113<\/td>0.28702<\/td>268.4024<\/td>0.182<\/td><\/tr>
30<\/td>0.01<\/td>0.254<\/td>338.496<\/td>0.142<\/td><\/tr>
31<\/td>0.0089<\/td>0.22606<\/td>426.728<\/td>0.113<\/td><\/tr>
32<\/td>0.008<\/td>0.2032<\/td>538.248<\/td>0.091<\/td><\/tr>
33<\/td>0.0071<\/td>0.18034<\/td>678.632<\/td>0.072<\/td><\/tr>
34<\/td>0.0063<\/td>0.16002<\/td>855.752<\/td>0.056<\/td><\/tr>
35<\/td>0.0056<\/td>0.14224<\/td>1079.12<\/td>0.044<\/td><\/tr>
36<\/td>0.005<\/td>0.127<\/td>1360<\/td>0.035<\/td><\/tr>
37<\/td>0.0045<\/td>0.1143<\/td>1715<\/td>0.0289<\/td><\/tr>
38<\/td>0.004<\/td>0.1016<\/td>2163<\/td>0.0228<\/td><\/tr>
39<\/td>0.0035<\/td>0.0889<\/td>2728<\/td>0.0175<\/td><\/tr>
40<\/td>0.0031<\/td>0.07874<\/td>3440<\/td>0.0137<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Source: https:\/\/www.powerstream.com\/Wire_Size.htm<\/a>.<\/p>\n\n\n\n

Resistance is for copper wire. Most other metals are worse conductors.<\/p>\n\n\n\n

Maximum currents are guidance only. Different sources list different numbers. For instance: https:\/\/www.engineeringtoolbox.com\/wire-gauges-d_419.html<\/a>. The thing that actually matters is how much voltage drop (and heat generation) you can tolerate.<\/p>\n\n\n\n

There are many voltage drop calculators on the web. For instance: https:\/\/www.rapidtables.com\/calc\/wire\/voltage-drop-calculator.html<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

The diameters of electrical wires are designated by their \u201cAWG\u201d number. Smaller numbers are thicker wires. AWG Diameter (inch) Diameter (mm) Resistivity (\u03a9\/km) Max. current (A) 6 0.162 4.1148 1.295928 37 7 0.1443 3.66522 1.634096 30 8 0.1285 3.2639 2.060496 24 9 0.1144 2.90576 2.598088 19 10 0.1019 2.58826 3.276392 15 11 0.0907 2.30378 4.1328 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-317","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=\/wp\/v2\/pages\/317"}],"collection":[{"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=317"}],"version-history":[{"count":3,"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=\/wp\/v2\/pages\/317\/revisions"}],"predecessor-version":[{"id":516,"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=\/wp\/v2\/pages\/317\/revisions\/516"}],"wp:attachment":[{"href":"https:\/\/leech.caltech.edu\/cntl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}