Make a 12v test port?

[tirwin]

I recently ordered a 4-fuse ATO panel from fellow Pelican Fred Cook (thanks, Fred!) to replace the ceramic fuses in the engine bay. I was getting ready to install it today and it occurred to me that I will lose a handy-dandy spot to conveniently clip into 12V constant power. I use that a good bit for stuff like the timing light. I'm thinking it would be a good idea to make a 12v test port -- sorta like the same idea as the ECU test port. Something that could be exposed only when needed, so maybe something with a removable cap.

The original fuse panel is only 3 fuses but Fred makes a 4-fuse option so you get an extra fuse, which in my case is perfect for my new MSD Street Fire installation.

That got me wondering if I could make a "bridge" block to split the incoming red constant wire 4 ways:
1) to fuse 22 (rear window defogger/wiper)
2) to fuse 23 (heater fan fuse)
3) to new fuse (to MSD Street Fire)
4) 12v "test port"

If you're wondering why I need to split for 22 & 23 it's because the original fuse panel uses a single input wire and a U-shaped copper bridge. Fred's ATO panels have individual male spade connections so a copper bridge like what's used in the original panel won't work. I'm adding 2 more splits -- the fuse for the MSD and my test port idea.

I'm going to the parts store tomorrow to see what I can find. Just thought I'd throw it out there to see if anybody has any bright ideas.

[tirwin]

May have found the answer to my own question.... Something like this:

Blue Seas Mini Bus 4 Stud with Cover - Terminals & Wiring Block by Discount Marine Supplies

Or this:

Final Power Distribution Bus Bar - Xweb Forums

I like the second one but I'm not sure how big it is or where to find it.

I'll keep searching...

[JJ 911SC]

I used these with with nylon isolated connector.

Unscrew the cover and you got a voltage test point on the fuse (or use fuse that have glow when blown) and remove the fuse and you can check the circuit both ends.

They come in strip of 2, 4, 6, 8, 10 and 12 circuits.

Wirthco Blade Fuse Holder: ATO/ATC Fuse Blocks - Wirthco Engineering, Inc.

Got mine from Amazon at a better price that are posted today.