Ivan's RV-7

Creating a junction busTimer icon1.5h

March 18, 2026

Today I created a small copper "junction bus" to feed my engine bus from two batteries.

This is Blue Sea 5029 fuse block I intend to use for my engine bus. All connections are screw terminals, which should make this block more robust.

Blue Sea 5029 fuse block

It only has one input, and I want to feed it through two separate supply paths (one from each battery).

To do that, I cut a small copper bus that will attach to the fuse block and provide two locations to attach diodes feeding the bus.

Copper junction bus

This is how diodes (I chose VS-175BGQ030HN4) will attach to the bus.

Copper junction layout