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post #9 of Old 05-05-2012
Learning the HARD way...
eherlihy's Avatar
Join Date: Jan 2007
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Re: Electrical Upgrades

You're right. Because I have been able to start my M25 on a 90A MRBF, it does not mean that I am suggesting that it should be done. If I catch that bone-head skipper doing this again, he's fired!

However, I do recall reading somewhere that the starter on an M25 should be able to do it's job with <100A. If it is sucking more juice than 135A, I want to know about it, because it means that the starter is acting up. Also I have a spare 150A fuse that I keep - just in case.

Your second point, I believe, is the theory of fusing a circuit; the fuse protects the wire, not the device. For details see; ABYC Wiring Standards

All good stuff!

Last edited by eherlihy; 05-06-2012 at 08:10 AM. Reason: Maine Sail's request
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