Jabiru 3300 Alternator, Starter Switch Wiring

by John Austin

Dec 2, 2011

I've almost finished wiring my Jabiru 3300/CH 750's panel. After studying the Jabiru Engine Installation Manual's wiring diagram, it appears to me that the +12V circuit that excites the alternator (yellow wire at voltage regulator plug) comes directly off the Main Bus and is not fused/breakered.

It also appears that the +12V to the starter switch (to energize the starter solenoid) also comes directly off the Main Bus and is not fused/breakered.

Anyone "been there - done that" and can verify this is correct?

Thanks,

John

  • up

    Christopher Nail

    I'm curious to know the same thing. I asked a similar question in. Post on here a few weeks ago; never got an answer. The home built help video says to wire the yellow and red together. I think I'll have the yellow come off the bus and the red to the master soleinoid.
    1

    Dec 3, 2011

    • up

      David Gallagher

      I followed what I believe are good practices out of the Bob Nuckolls Aeroelectric guides and I have both circuits on either a breaker or fuse.  Just for giggles, my overall wiring diagram is attached showing these ciruits.  It has served me well for over 200 flying hours now in my Jabiru powered 601XL.

       

      Good luck

      2

      Dec 5, 2011

      • up

        Christopher Nail

        Any thoughts on the following setup on the vr wires: red connector to main bus side of ammeter shunt, yellow to either battery (understand the slow drain involved with that) or bus side of master solenoid (across other side of ammeter)?

        My main thought/question is how the battery gets charged with the yellow/red butted together anywhere but near the battery.

        Or should I just go red/yellow together at main buss side ammeter.
        1

        Jun 5, 2012