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Old 01-20-2015, 08:00 AM   #1
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2014 23' FB Flying Cloud
Mill Valley , Left Coast
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Trimetric 2030 Shunt location

I was thinking about mounting the shunt externally on the battery box in its own metal enclosure. I was also considering mounting a master battery disconnect switch here. Thoughts?
My thinking on this is the fact that I don't want something getting potentially red hot next to my battery. And for obvious reasons the disconnect switch.

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Old 01-20-2015, 08:17 AM   #2
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2014 20' Flying Cloud
Kooskia , Idaho
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Look at the photos of what I did, post #18, this thread

The shunt will never get "red hot" unless you have some kind of a short.

It is hard to find a place for the shunt and an external disconnect switch near the battery box which is jammed in between the frame rails and the trailer body and gas tanks. I would have liked to put a disconnect Perko type switch on mine, but could not find any place to mount it.

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Old 01-20-2015, 08:41 AM   #3
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Ditto idroba...but I would use a plastic electrical box....just to ensure the lowering of any short circuit chances.

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Old 01-20-2015, 10:51 PM   #4
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Your shunt is not going to get hot. Especially if its the 500 amp that I recommend. Even the 100 won't over heat as long as your charge current doesn't exceed 70 Amps. 400 for the 500 amp shunt.
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Old 01-21-2015, 06:00 AM   #5
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The shunt won't get hot and since it is in the negative lead there is not a real reason to go to great length to box it as if it were to short to ground no harm would be done, just erroneous readings.
I originally had mine right at the battery terminal. Later moved it to outside the battery box when neatening up my wiring. I also changed from the 500 amp shunt to 100 amp shunt for more accurate readings.
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Old 01-21-2015, 07:28 AM   #6
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What's the best position for the shunt location so I'm reading Both batteries? Another poster placed his between the batteries, which looked to me to just read one battery.
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Old 01-21-2015, 07:39 AM   #7
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You have to change the cabling of the factory setup so that the shunt is in the negative path between the load and the batteries in parallel.

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