Please Criticise Electrical Layout

[topcat0399]

Finally bit the bullet and dumped all of this into my ancient Venture far exceeding the boats value I'm sure but that isn't hard.

The boat is a trailer sailor and not stored at home so I needed to be able to park it, plug it in, turn off battery loads and let it charge away in my absence.

The cheapo 30A Panel will be replaced next year.
When I retire the 2 old dog fake 12V deep cycles will be replaced with 2-6V Deep Cycles.

Solar next summer or perhaps the next. Planning for 100W.

If anyone one has comments I would appreciate them.

My main question is if the 225 AMP Fuse circled in blue is redundant and perhaps I should jump that cable over to the feed stud.

 

[jssailem]

Perhaps the question is better stated what is the 225AMP fuse (Circled in blue) protecting?
You have in the diagram a 225AMP fuse at the battery, then the switch, then a second 225amp fuse. (if I understand you diagram).

 

[jssailem]

Is the 6AMP alternator output from the outboard intended to feed the batteries? It looks like there could be considerable voltage drop before it gets to the battery.

 

[THECUSCUS]

I think the 2nd 225 fuse would be redundant. I agree, run that wire directly to the 1-2-both switch. I would go step further and put that on the "1" post and the other wire feed on the"2". Use the "both" normally, but if and issue arises, you have the option to isolate and disconnect. I think you need to connect the AC neg and ground wire to the DC ground bus (someone correct me if this is wrong)

 

[gdudik]

Is the 6AMP alternator output from the outboard intended to feed the batteries? It looks like there could be considerable voltage drop before it gets to the battery.

A 6A alternator feeding through mostly 1awg wire and approx 4ft of 10awg? Doesn’t seem too excessive to me.

 

[Ken Cross]

When I had a trailer sailor, I was always interested in keeping the boat relatively light in weight.
A 225 amp fuse seems a bit heavy for the loads you are likely to encounter, same with the 1 AWG wire. I certainly would lighten it up. Jssailem already addressed the redundant fuse.

The 60 amp fuse to the outboard motor must assume starter loads. You should know what that is? That will be your heaviest load on the boat.

10 AWG is light for 60 amps but should easily carry all the rest of the loads on your boat unless you intend to install something not usually found on a trailerable boat (such as a thruster or windless).

Ken

 

[agprice22]

Is there a 30 amp, double pole breaker after the shore power inlet? I see the panel, but no specific double pole breaker.