Hello! Thanks again for the continued help!
This is part of the ongoing electrical refit on my Oday 37, for what that's worth to you expert types.
Following current wisdom, I'm moving all charging sources to the house bank, and then installing an Echo Charger to handle the start bank.
In the planning process, however, it's becoming clear that just connecting stuff to the battery terminals isn't an option. Here's what I'll have wired to the positive terminal of the house bank:
-Xantrex 20Amp TruCharge, powered by shore power (when available)
-Eventually, Solar Power (that's on the next-month list)
-Eventually, Wind Power (that's on the 3-6 month list)
-Echo Charge unit
-Bilge pump (not directly.. through a circuit breaker)
-Eventually, Backup bilge pump (also not directly, as above)
So, really, it's just not an option to wire everything to the battery terminal, right?
I plan to use those terminal fuses (these guys: Blue Sea Terminal Fuse
) quite liberally. I figure one on every battery (at this point, there are just two group 27's for the house and one group 27 for the start bank).
What I'm wondering is, why not make a short run from the positive terminal of the house bank to a bus bar located right there in the battery compartment (on this boat, said compartment is HUGE). So I'd use, say, a 150A fuse at the battery terminal itself, then run a #1 AWG wire from the battery to the bus bar.. maybe 18" to 24" away. On that bus bar, I could use additional terminal fuses on each terminal. So all of the above items would be individually fused right on the bus bar.
(The exception to that would be the Victron battery monitor, which could easily be attached to the actual battery terminal, even before the fuse, as I understand it)
So what I would end up with is a large bus bar right next to the battery, and every post on that bus bar would have a Terminal Fuse of some size (the actual rating of the fuse can be changed easily and at no extra cost). Coming off that bus bar would be:
-All charging systems, each on their own post and fused appropriately
-A 1/2/both/off switch, which would then lead to the DC panels normally
-The bilge pump(s) (located here so that they are always on, but fused so they can be disconnected)
If all of that makes sense, would it also make sense to mount a bus bar for the negative stuff? It wouldn't be fused individually, of course, and would be mounted ahead of the shunt for the battery monitor. This bus bar could then take all the negative leads and connect to the house bank neg terminal.
Seems like this would make for easier trouble shooting down the road?
And, after all that text, I apologize if I just re-invented the wheel and all this is standard already. The books I have (Ed Sherman's and Wing's) seem to gloss over the actual nuts and bolts of connecting everything to the house bank.