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  #11  
Old 08-15-2013
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Re: Need high-current 12VDC deck plug

Quote:
Originally Posted by kellysails View Post
Trolling motor connectors or electric down rigger connectors. Both would work.

With 10AWG you can go 15 feet with only a 5% voltage drop on a 20amp draw.

With 8AWG you can go 25 feet with only 5.2% voltage drop with a 20 amp draw.

Send me a PM and I will forward along my automated excel wireloss worksheet. I use it all the time. Very handy.
Problem is that on many boats the wind gen is 70-80 feet plus of round trip wire run to the battery bank. There is 20 feet of wire just in a 10 foot pole and we've not even entered the boat yet. Solar, wind or any other charge source also critically need the least amount of drop if you want max performance fom the system.. My alternator pos & neg are 2/0 wire...

Unless your charge system has a dedicated voltage sensing wire then even a 3% drop can be too much and an hinder charging performance.. Without knowing the length of the run or the OP's intended min drop for the system it is impossible to say the 4ga wire is either to large or to small...
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Last edited by Maine Sail; 08-15-2013 at 11:21 PM.
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  #12  
Old 08-15-2013
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Re: Need high-current 12VDC deck plug

There are connectors that tow trucks use for jump starting should work. Or perhaps a regular shore power connector.

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Old 08-15-2013
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Re: Need high-current 12VDC deck plug

If you can't conveniently source watertight bulkhead plugs that you like, consider just installing a pair of 1/4x20 stianless bolts through the deck, and then bolting down the cables to either side of them using conventional battery lugs. It isn't high tech, but it is simple and solid, and a minute with a ratchet (or wing nuts) does the connect and disconnect.
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Old 08-16-2013
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Re: Need high-current 12VDC deck plug

Why 20Amp connector from a wind generator??

What size/output wind genny do you have?

I fitted one of these, and these to a small coaster to use to pump out the anchor locker with a heavy duty portable bilge pump.



I know it says 16Amp at 24vdc, but the size of the pins will (and does) take a lot more at 12vdc.

They are only IP44, but if the socket is mounted facing down (as it should be), the plug will fit in (facing up) and no water will be able to enter. Cable entry is at the top via a compression gland or back entry with a "blind" grommet.
This is how I fitted it to the coaster.

These are available in the UK, but should also be available in the USA.
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Old 08-16-2013
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Re: Need high-current 12VDC deck plug

I'd love to see a good solution here but I don't know of any. Suggestions:

1) what MainSail said
2) Cable port. Achieves the same thing but more flexible (4awg wire perhaps a challenge here)
Salty John: Cableport and other fine boat and yacht chandlery products.

3) Anderson power pole connectors. Simple and cheap. Add your own weatherproofing.
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Old 08-16-2013
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Re: Need high-current 12VDC deck plug

I used these for my solar panels:
Browsing Power Connectors
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Re: Need high-current 12VDC deck plug

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Originally Posted by remetau View Post
I used these for my solar panels:
Browsing Power Connectors
That looks good. I think it's a variation (probably compatible?) of this Anderson connector:
http://www.andersonpower.com/files.p...DS-SB50(5).pdf
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Old 08-16-2013
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Re: Need high-current 12VDC deck plug

I searched in vain for the connector we used to use on our marine magnetometer cables but I found this reasonably priced on on Amazon:

Amazon.com: Gino 2-Pin Waterproof Electrical Deck Plug Circular Cable Connector 400V 25A: Electronics Amazon.com: Gino 2-Pin Waterproof Electrical Deck Plug Circular Cable Connector 400V 25A: Electronics



I have no idea of the durability but they do claim a rating of 25A at 400V and it costs less than $10 US.

Last edited by OPossumTX; 08-16-2013 at 04:18 PM.
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