Electrical Schematic or Diagram

[dmarkvid2]

I've been searching the library, and the web for a complete diagram for rewiring my boat. I need to reconnect all my electrical componints, and add a duel battery switch from start to finish. Can anyone help me?

 

[ST]

Re: Electrical Schematic or Diagram

Here's one typical wiring diagram for small 16-17' boat, courtesy of Joe Kriz of joekriz.com:<br />

<br /><br />and here's some more info and drawing for the dual battery system you're searching, thanks to Jim Hebert of Continuouswave.com:<br /> http://continuouswave.com/whaler/reference/dualBattery.html . <br /><br />Good luck with your project!<br />Link edited 021006...st.

 

[ST]

Re: Electrical Schematic or Diagram

For some unknown reason to me, that last link above is not working as I intended (does anybody know why??), but you can still go there with this long version this way:<br />1. Click www.continuouswave.com<br />2. then click each step as shown, till you get to the dual battery section.

 

[jhebert]

Re: Electrical Schematic or Diagram

Try this:<br /><br /> http://continuouswave.com/whaler/reference/dualBattery.html

 

[dmarkvid2]

Re: Electrical Schematic or Diagram

ST, Thank you for both electrical diagrams one for wiring, the other for the battery switch. I have two other questions. The first is, are there a main breaker for each diagram or do I only need one? ie: one main breaker for both the wiring AND the battery switch? Also, what size main breaker should i use?

 

[dmarkvid2]

Re: Electrical Schematic or Diagram

One more question ST, on the battery switch diagram, there is a 1, 2, and a "C". Does the "C" represent both batteries?

 

[rickdb1boat]

Re: Electrical Schematic or Diagram

Mark,<br /><br />Not to jump in, but yes, there would be only one MAIN breaker(Fuse) for the main boat wiring and battery set-up. As for the switch, the "C" terminal would be considered the "Hot"(Positive lead). (You might say that "C" is the outlet for whatever choice you make for power supply.) Just as shown in the diagram, it will run directly from the engine to the switch "C" (Common)"Hot" terminal and then on to the fuse panel to be distributed for the boat wiring. You can see as you rotate the switch position, you would be using either 1 battery (Position #1) or (Position #2), which is of course uses battery #2). What the illustration is not showing you is the "Both" and "Off" position, but they are there. A 20 AMP breaker should be sufficient. Don't know if this helped, but I hope so.... Check out this site too...<br /><br /> web page Hover over "Articles" and read on...

 

[imported_Curmudgeon]

Re: Electrical Schematic or Diagram

"C" means "common". It's hot any time the switch is not in OFF (assuming two good batteries). Anything connected to "1" or "2" will always be hot, regardless of switch position.

 

[dmarkvid2]

Re: Electrical Schematic or Diagram

Thanks guys,

 

[dmarkvid2]

Re: Electrical Schematic or Diagram

Hi rickdb1boat, I will be connecting a depth finder, running lights, cabin lights, vhs radio, blower, bilge pump, spot light, sterio. Are you sure a 20 amp main breaker is enough?

 

[apark999]

Re: Electrical Schematic or Diagram

having just bought a 16ft dory with a 15hp 1983 johnson i want to set up a 12v system to run fishfinder, radio gps etc.<br />what is the best way to set this up from scratch? is there a system on the engine that would charge the battery or would i need to trickle charge once used?<br />i have saved the above schematic and assume that this is the help i need. any more help would be appreciated<br />thanks<br />alex

 

[rickdb1boat]

Re: Electrical Schematic or Diagram

I'd go with a 30 Amp, with those accessories... Just make sure your wiring is up to snuff...

 

[dmarkvid2]

Re: Electrical Schematic or Diagram

Rick, I am rewiring my whole boat from scratch. Its a 21 ft. cuddy cabin with a 5.7 alpha1 I bought a blue seas 6 gang fuse block. Is it ok to connect more than one accessory to a fuse? as long as the amps match? Like the running lights with the cabin light, or the vhs radio with the stereo. Or should EACH componant be on its own fuse? I know larger things like a spotlight, will be alone. Thanks again.

 

[Reel Poor]

Re: Electrical Schematic or Diagram

I would recommend that everything have it own fuse, even if it means installing a second or third fuse box. Which would mean running different power and ground supply wires for each.

 

[ST]

Re: Electrical Schematic or Diagram

Mark,<br />looks like other members got the answers for you already. One think I'd like to add though, re. Old C input:<br />

"C" means "common". It's hot any time the switch is not in OFF (assuming two good batteries). Anything connected to "1" or "2" will always be hot, regardless of switch position.<br />

.<br /><br />Old C. is correct on the first part, but on the last sentence I think he simply forgot to add, that at position BOTH the C will be hot also.<br /><br />Note: if you continue reading the article from Continuous wave above, you'd find some word of caution in leaving the switch on BOTH. Only use it on emergency for starting, when one or both batteries are weak.

 

[dmarkvid2]

Re: Electrical Schematic or Diagram

Thanks once again. Dam, I'm just loaded with questions, I hope you don't mind me asking. When I run all these wires, and they will be color coded, is it a good idea to put them all in conduit? and mount it in the gunnel area. I know the battery switch and main breaker should be located in or by the engine compartment. Should I place the fuse blocks closer to the dash board (like underneath it?) I just want to get it right. Thanks, Mark