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Go Back   SailNet Community > Boat Builders Row > Beneteau > New Owner 473
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Thread: New Owner 473 Reply to Thread
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Topic Review (Newest First)
11-03-2011 12:00 PM
wgkenney Would enjoy taking a look at your schematic (polish on mine was too much time on a saturday on the hook).

I've switched out the orginal 4D's for 6V Deka for house. About 740 amp hours. We really use the genset mostly in late july and august for AC at anchor. We get 100 plus temps here in the Chesapeake and the genset was an accomatation to my wife and kids. Run it for about 4 or 5 hours after we finish swimming to cool the cabins off and secure it. End up using it 3 or 4 weekends. When we do an extended trip ( a week or more in the summer) will also use it to top up batteries.

We also have an asymetrical that came with the boat for downwind. For our light summer breezes here on the Bay it is a life saver downwind
11-03-2011 09:48 AM
migpilot
473 Elecrical system

Yes it was from 09 and I too have sice created a schematic much like yours (not as polished), but thanks any way. We also love our 473 and have cruised on it extensively on the great lakes every summer. Your boat has some things we'd like to have (Thruster and Genset) but we have found that we really don't miss them much since getting used to handling her in tight quarters. Time spent on the hook is dealt with with three lifeline 4d's and a Honda inverter for back up. I built a leece neville 150 amp alt along with a balmar 3 stage VR which works wonderfully along with the AGM's. We have a westerbeke 63c with PYI feathering three blade. Wind is handled with North 3dl cruisng sails and a 155 genoa, an asymmetrical with a sock and snuffer for DW. Thought about buying a sense 50 this fall but after looking at what we have versus what we'd get for over a half MIL, we decided to stick with "ozymandias".

Cheers,

Marc
11-02-2011 05:33 PM
wgkenney Sorry guys. Just noticed that this thread was from 2009! Likely you have figured all this out by now. Was only a page or so in so figured it was a recent post.
11-02-2011 05:24 PM
wgkenney
473 electrical drawing

I have a 2006 Beneteau 473 here in the Chesapeake Bay. I like to understand how the systems on the boat lay out so I will often use simplified schematics to help me remember how this all ties together. My 473 is a stock electrical system and I have a Westerbeke 7.6 genset with it.

I spent a fair amout of time this summer reading all the component manuals, talking to owners and mfg reps, and tracing my electrical system. I was able to construct this diagram for my boat.

I have 5 switches. Negative (just isolates the systems when turned to off), Diesel start, House, Inverter, Genset start battery. These are tied together with a Freedom Marine 20 charger / inverter, Xantrex Link 1000.

The genset system is completely seperate and the genset start battery is charged by the alternator on the genset. Then the genset puts power onto the AC buses (through a manual transfer so I cannot put shore and genset on AC bus at the same time) and the genset can supply the batter charger to charge the other batteries.

My anchor windless and electric winch have circuit breakers right next to the battery switch. I'm still looking for the breaker for the bowthruster (project for when I put the boat in storage and all the beding is out of the forward cabin). The bowthruster and windless are linked in with a relay to the diesel so I cannot operate either of them unless the diesel is on line.

That inverter switch really just isolates the charger / inverter for when you work on them. No battery connected to it. And you can see from the diagram that the charger / inverter ties in on the battery side of the house switch.

My house and diesel batteries can be online in parrallel if I need to.

My normal set up is genset switch ON, inverter switch ON, house switch ON, diesel battery OFF, Negative ON. The freedom marine 20 has an echo charger that is hooked to the diesel start battery. So I typically leave that battery isolated. The echo charger keeps a trickle charge on it so I don't over charge. I start the diesel with my house batteries. Benefit is I rarely ever change my switch line up and the diesel battery is there fully charged all the time in case of an emergency and my house batteries are dead.

See the attached chart. Hope this helps. Love my 473. It was a great investment for my family
11-02-2011 05:04 PM
wgkenney It is for you battery charger / inverter. Does not really do much just isloates it. I'll post my electrical layout on my 473 for you
04-30-2009 10:17 AM
migpilot Thanks Mike,

Yes my first thought was the windlass as there is no bow thruster. When I get out to it later I will check that. Winches are wired through breakers directly to the house buss.

Marc
04-30-2009 09:41 AM
MJBrown Any chance it's for a bow thruster, anchor windlass or even electric sheet winches? Turn it off and see if there's anything that would require a lot of amps that now doesn't work. The windlass or thruster would be my first choices.
Mike
04-30-2009 07:08 AM
migpilot
4th battery switch

Does anyone know the function and purpose of the fourth battery switch all of the way to the right viewing aft. On my install I have a (left to right) master negative, starting battery, house battery and one final red switch with no marking. It busses a very large cable through a heavy duty fuse but I cant trace it out. I do know that when it is selected on on shore power it cuases the battery charger to overcharge the ships batteries. I have an email into Ward Richardson but no answer yet.

Cheers,

Marc
04-27-2009 06:22 PM
negrini Look inside your boat outlet, there should be marked 30Amps or something different. As a general rule, if you have those computer plug, it's most likely to be a 15Amps plug, but certainly will not fit your boat requeriment. If you have a round 3 plug, it's a 30Amps. The 50Amps arrangement usualy uses a 4 pin. Pay attention if you have heavy loads installed (i.e. aircon). Look at WestMarine catalog (Marinco products) for pics and find one matching yours.

As a last tip, open a separated thread, this way more people would be reponding ... I'd recommend to open it at Gear&Maintenance section of Sailnet.
04-20-2009 11:38 AM
jbad Hello

I am a new member, that recently bought a 2002 Beneteau 473.

I live in the Middle East and the boat is a great boat for sailing in the local waters. Lot's of room and sails very well.

One small question, that may seem dumb. The boat came without a power cable for shorepower. When I look on the web or in local stores, they question whether I need 15 amp, or 25 amp?

Also, are the male and female plugs the same on all boats, or do I need to worry about the power cable fitting the female shorepower plug that is in the boat?

What is the difference? The boat did not come with an owners manual, but I was able to print one from the internet, although a 2004 version.

I want to be sure that I have the proper cable to match the boat.

Any suggestions are welcome.

Regards

Jbad
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