24 February 2019

AUX circuits complete

The wiring is coming along nicely, today I was able to clean up the existing and complete the rest of the AUX power circuits.  With my GMA-245 on AUX power, I spent a little more time than I care to admit with my headset on, streaming pandora over bluetooth from my phone into the entertainment system, making radio calls to myself.



I am going to move the wiring on the AUX fuse block around a little bit to make it easier to replace fuses. In my head when I was creating the schematic I thought it would be best to spread the fuses out to make them easier to identify. I found that when I was finding and pulling the fuses in the cabin that it is actually easier to identify the correct circuit if the fuse block is fully populated.



Fuse Links

I made the decision to bring my AUX shunt inside the cabin co-located with my AUX fuse panel. As a reminder, I decided to shunt my AUX current draw. My main AMPerage draw will be read from my main bus via the VPX Pro.

The install manual directs you to put a fuse link on the shunt to GEA24 connection. I decided to burn up 6 inches of 26AWG and was surprised by the amount of smoke (and smell). Rather than create a fuse link out of lighter gauge wire, I decided to put in an inline fuse.

I ordered some 1A axial fuses from Digi-Key. The part number was F2313-ND:


 I soldered this onto some 22AWG wire in a crossing pattern to bulk up and protect the leads on the fuse. Then used some clear heat shrink to protect everything.


I made a couple of these and connected them direct to the + and - of a 11v battery. They blow pretty quickly and do not even give off any noticeable heat in the process. I am going to give this a go and hopefully they do not randomly blow all of the time.