{"id":1153,"date":"2025-03-27T12:16:29","date_gmt":"2025-03-27T11:16:29","guid":{"rendered":"https:\/\/dev-site.se\/sutars.com\/?page_id=1153"},"modified":"2025-09-25T12:44:28","modified_gmt":"2025-09-25T10:44:28","slug":"cable-sizing-guide","status":"publish","type":"page","link":"https:\/\/sutars.com\/en\/wired-inspired\/cable-sizing\/cable-sizing-guide\/","title":{"rendered":"Cable sizing guide"},"content":{"rendered":"\t\t
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Cable sizing guide<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Home<\/a> \/<\/span> Page<\/span><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Is there a standard?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Here are some examples to show how you can size your cable for different situations. It is important to consider both the current and voltage drop when choosing the appropriate cable size. If you want a more precise sizing, or if you are unsure how to do it, you can use our customised calculator<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Type of wire<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The charging circuit<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Generator 50 A to the battery bank. A thinner cable can be used between the batteries. <\/p>

Calculated on max 0.1V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
1.5<\/td>3<\/td>35<\/td><\/tr>
2.5<\/td>5<\/td>50<\/td><\/tr>
3.5<\/td>7<\/td>70<\/td><\/tr>
4.5<\/td>9<\/td>95<\/td><\/tr>
5.5<\/td>11<\/td>120<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Bow thruster or anchor winch<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Between propeller\/winch and battery. This also applies to larger starter motors. 3.5hp = 2500 w \u2248 250 .<\/p>

Calculated on max 1V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
2.5<\/td>5<\/td>25<\/td><\/tr>
3.5<\/td>7<\/td>35<\/td><\/tr>
4.5<\/td>9<\/td>50<\/td><\/tr>
5.5<\/td>11<\/td>70<\/td><\/tr>
6.5<\/td>13<\/td>95<\/td><\/tr>
7.5<\/td>15<\/td>120<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Bow thruster 7 hp<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Between propeller and battery. 7 hp \u2248 5000 W \u2248 500 A<\/p>

Calculated on max 1V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/p>
Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
2.5<\/td>5<\/td>50<\/td><\/tr>
3.5<\/td>7<\/td>70<\/td><\/tr>
4.5<\/td>9<\/td>95<\/td><\/tr>
5.5<\/td>11<\/td>120<\/td><\/tr>
7<\/td>14<\/td>2 x 70<\/td><\/tr>
9<\/td>18<\/td>2 x 95<\/td><\/tr>
11<\/td>22<\/td>2 x 120<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Lantern in mast<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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25 W = 2 A<\/p>

Calculated on max 0.5V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/p>
Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
18<\/td>36<\/td>2,5<\/td><\/tr>
20<\/td>40<\/td>4<\/td><\/tr>
25<\/td>50<\/td>4<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Supply to the electricity centre<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Between battery and switchboard.<\/p>

500 W = 50 A<\/p>

Calculated on max 1V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/p>
Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
2.5<\/td>5<\/td>10<\/td><\/tr>
3.5<\/td>7<\/td>16<\/td><\/tr>
4.5<\/td>9<\/td>25<\/td><\/tr>
5.5<\/td>11<\/td>25<\/td><\/tr>
6.5<\/td>13<\/td>25<\/td><\/tr>
7.5<\/td>15<\/td>35<\/td><\/tr>
8.5<\/td>17<\/td>35<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Solar panel or charger<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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50 W = 4 A<\/p>

Calculated on max 0.1V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/p>
Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
2.5<\/td>5<\/td>4<\/td><\/tr>
3.5<\/td>7<\/td>6<\/td><\/tr>
4.5<\/td>9<\/td>10<\/td><\/tr>
5.5<\/td>11<\/td>10<\/td><\/tr>
6.5<\/td>13<\/td>10<\/td><\/tr>
7.5<\/td>15<\/td>10<\/td><\/tr>
8.5<\/td>17<\/td>16<\/td><\/tr><\/tbody><\/table>

<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Fridge or heater<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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60 W = 5 A<\/p>

Calculated on max 0.1V voltage drop<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/p>
Distance (m)<\/th>Total cable length (m)<\/th>Cable area (mm\u00b2)<\/th><\/tr><\/thead>
2.5<\/td>5<\/td>6<\/td><\/tr>
3.5<\/td>7<\/td>6<\/td><\/tr>
4.5<\/td>9<\/td>10<\/td><\/tr>
5.5<\/td>11<\/td>10<\/td><\/tr>
6.5<\/td>13<\/td>10<\/td><\/tr>
7.5<\/td>15<\/td>10<\/td><\/tr><\/tbody><\/table>

<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Warning: Attempt to read property “labels” on null in \/var\/www\/html\/kunder\/sutars.com\/wp-content\/plugins\/essential-addons-for-elementor-lite\/includes\/Elements\/Breadcrumbs.php on line 692 Warning: Attempt to read property “singular_name” on null in \/var\/www\/html\/kunder\/sutars.com\/wp-content\/plugins\/essential-addons-for-elementor-lite\/includes\/Elements\/Breadcrumbs.php on line 692 Home \/ Is there a standard? Here are some examples to show how you can size your cable for different situations. It is important to consider both the current […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":535,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"Lathund for cable dimensioning | Sutars AB","_seopress_titles_desc":"Here are some examples showing how you can dimension your cable for different situations. For more precise sizing, use our calculator!","_seopress_robots_index":"","editor_notices":[],"footnotes":""},"Pagecategories":[63],"class_list":{"0":"post-1153","1":"page","2":"type-page","3":"status-publish","5":"Pagecategories-kabeldimensionering"},"acf":[],"meta_box":[],"_links":{"self":[{"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/pages\/1153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/comments?post=1153"}],"version-history":[{"count":12,"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/pages\/1153\/revisions"}],"predecessor-version":[{"id":13518,"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/pages\/1153\/revisions\/13518"}],"up":[{"embeddable":true,"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/pages\/535"}],"wp:attachment":[{"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/media?parent=1153"}],"wp:term":[{"taxonomy":"Pagecategories","embeddable":true,"href":"https:\/\/sutars.com\/en\/wp-json\/wp\/v2\/Pagecategories?post=1153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}