12V Breaker Switch for easier LVB resets / cold boot

[louibluey]

I finally got around to installing my breaker as a 12V LVB switch. I am not yet advocating this mod, but here is what I did. I think there is a 200A fuse in the red positive battery terminal assembly. Then, entering the battery junction box (BJB), there is a 125A fuse and two 75A fuses. The marine style breaker I chose (Series 187 Marine Rated Circuit Breaker (MRCB) COOPER Bussmann) has a very long trip time, with 200% out to tens of seconds. So, I chose a 150A rated unit to avoid nuisance trips, but low enough so at least it will open in a short circuit condition. These breaker can interrupt 5000A, so it should be robust as a reset switch. I also think it is a good idea when possible to open that little green HV disable switch first, so you don't open the battery circuit when/if the DC/DC converter is running. The converter can probably survive the transient fine though, as I've opened the battery circuit several times in that condition. The lug from the battery terminal gets bent down about 10 degrees, and the lug to the chassis ground needed to be bent up about 20 degrees. I put a small gob of electricians sealing putty under the breaker, just to give it some cushion and to be sure it stays in place and does not vibrate against the top of the LVB.

Now, I can do a "no tools" reset / cold boot.

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[Murse-In-Airy]

I had a feeling after seeing this photo. I thought, “This has got to be @louibluey.”

 

[Logal727]

Gonna be a no for me dog

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