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Made schematic for new wiring. Any tips?

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Made schematic for new wiring. Any tips?

Old 02-19-2015, 01:10 PM
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Default Made schematic for new wiring. Any tips?

Hi all, I am re-doing the rats nest of wiring I have in my boat and came up with a new wiring plan for the accessories. If you have a minute, please take a look and let me know how this looks to you. Any tips would be GREATLY appreciated!

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Old 02-20-2015, 05:41 AM
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Where's your bilge pump?
Old 02-20-2015, 07:13 AM
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No NAV lights??? and I assume no tabs?
If it were me, I would do 2 circuits, one dedicated for your electronics (VHF, Sonar/MFD, Radar, Stereo & network) and the other for everything else like the lights, pumps etc. That way your electronics are isolated, as they won't be prone to power issues which can happen when you throw on a 15-20 amp washdown pump or something.
Old 02-20-2015, 07:15 AM
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Would you really need fuses inline with the breakers? Maybe for the electronics, but not washdown pumps, fans or lights. If a breaker is feeding multiple devices, then you might fuse each device with appropriate size fuse, but i don't think its necessary in your case.
Old 02-20-2015, 07:55 AM
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Thanks guys, I should have included a little more info. The boats dash panel already has the blower, bilge pump, tabs, and nav lights covered. These two switch panels are for accessories only and are basically their own isolated system as recommended.

All of the circuit breakers are resettable and rated at 15 amps each. The reason that I added fuses as well is because something like a gps which is fused at 3 amps, would take a heck of a long time to throw that 15 amp breaker. Basically the breaker would need to generate enough heat to blow. By then that electronic would be toast. The fuse should blow right away in the event of a short.
Old 02-25-2015, 01:48 PM
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Just so your clear on something, you do know that it's the wiring that you're fusing, not the equipment that you connect. The reason for say a 3 amp fuse in the gps wiring is because it's got really thin wires. The correct fuse for a certain length and thickness of wire can be calculated with a table of which I have forgotten the name but there's also forms online that do it for you. I'm sure someone can put a link to one here, as I am writing this from my mobile.
Cheers
/Filippe
Old 02-27-2015, 12:20 PM
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Thank you for the Filippe, I will do some looking & try to dig it up.
Old 02-27-2015, 03:44 PM
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check out (or buy) an ugly book has anything and everything you need in terms of electricity

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