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Electrical
Outboard circuit breaker sizing
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<blockquote data-quote="InSaneFisherMan" data-source="post: 481320" data-attributes="member: 26281"><p>Not sure if this will help.</p><p></p><p>My DF9.9 starter is rated at 1.4kW, if my math is correct, the amperage at 12vdc would be 116a.</p><p></p><p>My 6 cylinder GMC has 100a fusible link at battery post.</p><p></p><p>Without the specifics on the starter, or a clamp on dc amp meter, it may be difficult to get a a good number.</p><p></p><p>The peak current happens around the first 5-15 seconds of starting (motor starts to spin) and this is when too small of a breaker would likely trip.</p></blockquote><p></p>
[QUOTE="InSaneFisherMan, post: 481320, member: 26281"] Not sure if this will help. My DF9.9 starter is rated at 1.4kW, if my math is correct, the amperage at 12vdc would be 116a. My 6 cylinder GMC has 100a fusible link at battery post. Without the specifics on the starter, or a clamp on dc amp meter, it may be difficult to get a a good number. The peak current happens around the first 5-15 seconds of starting (motor starts to spin) and this is when too small of a breaker would likely trip. [/QUOTE]
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