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Old 02-17-2017, 01:10 PM   #1
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Battery cut off switch for Ford van

I need to get a battery cutoff switch for the van's battery (not house).

I seem to recall looking at one of the screw-type ones, but that I didn't have enough play in the negative cable to make it work. On other vehicles I also had problems with those and vibration.

Anyone use one of the blade switch types? they have vertical and horizontal. I'm wondering if they fit since it's kinda tight there. Or any other good alternatives.
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Old 02-21-2017, 06:47 PM   #2
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If it is a standard tapered post get a heavy duty cable lug and replace the square nut with wingnut and washers, then just remove the cable end to disconnect.

If it is a 3/8" female thread get some 3/8" brass or stainless rod(cut the end off a bolt) and a wingnut and washer.

If you must have an actual switch and have the room I would suggest a quality blade switch.
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Old 02-21-2017, 09:22 PM   #3
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Battery Disconnect Cut Off Kill Switch With 2 Keys
Price:$7.25 & FREE Shipping


https://www.amazon.com/Volt-Battery-...2G1ZN43TCAT1R8
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Old 02-21-2017, 09:58 PM   #4
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That's rated for 300amps, I wouldn't hook your starter up through it. You might, and I stress might, be able to find some high current latching solenoids contactors that will take a 12v input, that would be the kitty's titty.
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Old 02-21-2017, 09:59 PM   #5
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A 600amp single phase breaker might work
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Old 02-22-2017, 08:25 AM   #6
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Wouldn't one of these be they way to go?

https://www.bluesea.com/products/300...Battery_Switch

Maximum Voltage 32V DC
Continuous Rating 600A
Intermittent Rating 900A (5 min)
Cranking Rating 30 sec 1750A
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Old 02-22-2017, 09:01 AM   #7
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Kinda tight in there and even dealing with the - cable is a pain. And that was before I wired in the winch, inverter, etc. Ugh. I should have done everything at once instead of constantly adding over the years, but that's how it goes.

I've used some of those on track cars and boats, but there's no good place to fit the nice switches. So I'm going with a nicely old fashioned blade switch.

Thanks for the suggestions.
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Old 02-22-2017, 09:42 AM   #8
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I had an Intellitec battery disconnect in my Roadtrek. It is a latching relay. Very nice setup. But given your space constraints, it probably will not work for you.
http://www.rvtechlibrary.com/electri...disconnect.pdf
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Old 02-22-2017, 05:55 PM   #9
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That blue sea systems switch looks perfect if he has the room. I figured with a latching contactor he could run wires and hide it out of the way, with a switch he would have to mount it in an easy to reach spot. The contactor control wires would be small gauge hooked to a momentary toggle switch on the dash.
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