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Old 11-29-2015, 12:06 PM   #1
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Battery Disconnect Cable

I am going to install a battery disconnect on my TT. Do I need to get a 2 gauge or a 4 gauge cable. Running 30amps.
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Old 11-29-2015, 12:26 PM   #2
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I would think 6 AWG rated at 55A would be more than enough.
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Old 11-29-2015, 03:55 PM   #3
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I would just match cable size to what is already on the battery.
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Old 11-29-2015, 09:56 PM   #4
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They all "look" the same size.
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Old 11-29-2015, 10:05 PM   #5
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If you look close the cable should say the size ex 6awg... It is usually not easy to see and might blend in but it repeats every few feet.

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Old 11-30-2015, 07:23 AM   #6
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Quote:
Originally Posted by southpaw821 View Post
They all "look" the same size.
They are & you do not want to go smaller or larger; keep it all the same size.
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Old 12-01-2015, 01:00 PM   #7
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whatever your existing cabling is--your added cabling should be no smaller or you will create a potential heating condition under load on that segment of cable.


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Old 12-01-2015, 01:03 PM   #8
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You don't say how far away from the battery you will be installing the disconnect.
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Old 12-01-2015, 01:28 PM   #9
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Quote:
Originally Posted by Papa GLS View Post
They are & you do not want to go smaller or larger; keep it all the same size.
You can go larger without an issue - but there's no advantage, either...

8 Ga would be fine for 30A, but I'd go with #6... 4 or 2 ga would be overkill but also wouldn't hurt anything but your wallet.
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Old 12-04-2015, 05:52 PM   #10
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2x on 6. Larger won't hurt anything though


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