Get these bus bars. We have taken it one step further with a complete cover not shown here made too out of perspex.

Marine Bus Bar Wiring Diagram H1 Wiring Diagram
How to wire a busbar on a boat. Bus bar installation that is a conceptual drawing illustrating what the buss is for. Hi unfortunately the only safe way to decipher the mystery is to trace the boat. This allows only one larger conductor to be run from the battery to the helm. This is a no non sense bus bar and is being used very successfully in our yacht. 10awg for larger boats 5 10 loads is normal. Theres almost always at least one bus bar on a boat used to aggregate combine all the negatives together coming from the loads.
The boat wiring includes seven wires to the negative terminal and only the battery cable and one small red wire with a fuse on the positive terminal. Plus these two conductors will carry the current of all your electrical loads combined so they are typically fairly beefy cables. Tiny boat nation 77351 views. Wiring the electrics on a boat pt 1 duration. So do it like it shows. 8awg is getting toward over kill in most.
The terminal block connects the switch panel outputs to the wires going out to the device. It is the wire that daisy chains the12 volt input side of all switches. This is sometimes a long wiring run on a boat. Fuse block bus bar tutorial for boats mass led bilge pumps accessories. Even a small boat 3 5 loads wed recommend at least 12awg wire for this. I dont have a schematic and cant tell what goes where.
And just so you know if you are using a switch panel with a bunch of switches on it the positive buss is already there. That technically is not a buss. I think that the little one goes to the fish finder and that is working. Would appreciate any help or info you could send me. Somehow i got confused and put some wires on the wrong terminal.