{"id":1290,"date":"2025-03-27T14:25:25","date_gmt":"2025-03-27T13:25:25","guid":{"rendered":"https:\/\/dev-site.se\/sutars.com\/?page_id=1290"},"modified":"2026-06-24T16:57:57","modified_gmt":"2026-06-24T14:57:57","slug":"switch-or-fuse","status":"publish","type":"page","link":"https:\/\/sutars.com\/en\/wired-inspired\/security-and-safety\/switch-or-fuse\/","title":{"rendered":"Switch or fuse?"},"content":{"rendered":"\t\t
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Switch or fuse?<\/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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A small fuse can save the entire boat<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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If you have a charged, properly dimensioned battery bank and it gets short\u2011circuited, as much energy is released as if you were to set fire to a liter of gasoline. Every second.<\/strong><\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Risk with electrical<\/strong> systems
<\/strong>Modern electrical systems can deliver large amounts of energy. A healthy, properly dimensioned battery bank can, in case of a short circuit, release as much energy as if you set fire to a full liter of gasoline, every second. Then it\u2019s not the time to look for switches.<\/p>

Fuses solve the problem<\/strong>
If the cables are properly fused, it\u2019s the fuse that burns out and breaks the circuit before anything else in the boat does. It may sound inconvenient, it may feel expensive, but compared to almost everything else on the boat, it\u2019s such a small cost that it\u2019s penny-wise and pound-foolish not to do it.<\/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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Using a main switch instead of a fuse is not recommended.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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