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diy solar

Common Post in Battery Disconnect too close to Lynx Distributor Post?

Crocdundee

New Member
Joined
Apr 21, 2024
Messages
20
Location
California
Hello all,

I built a battery disconnect switch that includes an inverter pre-charge circuit based on the guide created by @FilterGuy here. Upon mounting my Lynx Distributor, I noticed that the Perko Disconnect switch wasn't terribly ideal for directly mounting to the Lynx positive bus bar as typical with some of the other battery disconnects. The reason is that the common post (from battery) and outlet post (to lynx) aren't oriented to where the 4/0 battery cable can come in from the bottom or left and go out through the right side to mount directly to the lynx distributor. After some thinking, I was able to invert the battery switch, which did allow for direct mounting to the lynx distributor and also to bring the 4/0 battery cable from the left side of the switch. After having it mounted (see photos below) this appears to put the common post (battery in) pretty close to the positive bus bar of the Lynx Distributor.

My question is whether the common post is too close to the positive lynx busbar to be safely used?

With 4/0 cable and a 4/0 terminal lug, I wasn't sure if this was enough of a gap to not cause 24v power to jump between the battery and lynx busbar. I do have a Blue Seas 9160 ML bar that I could use to add some space, file down the corner closest to the common post, or perhaps glue in a plastic divider? I was hoping to avoid having any open metal on the positive side, just to avoid accidental shorts. I don't have the option to flip the lynx distributor with my layout.

Edit: For any other beginners, I found buying a set of nylon spacers useful for making sure the lynx, battery disconnect switch and BMV-712 shunt all were flush to each other, saves a bit of time and money from buying the specialty mounting kits or additional terminal bars.

Clear skies!
 

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I am not sure - by looking at it when you put a 4/0 cable end on (M8 bolt?) it will be touching. What did you end up doing?
 

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