[200q20v] Another fusible link question

Bernie Benz b.m.benz at prodigy.net
Fri Oct 12 06:54:45 EDT 2001

You're right, Dave.  The fuse need only handle the steady-state motor
current, plus have the slow blow characteristics to handle the starting
curent surge of maybe 70A.  A stalled or frozen motor may have an internal
resistance of around 0.2 Ohm.


> From: Dave Haupt <quattrodave at yahoo.com>
> Date: Thu, 11 Oct 2001 23:40:13 -0700 (PDT)
> To: 200q20v at audifans.com
> Subject: [200q20v] Another fusible link question
> OK, so I looked at it, looked at it again, read
> emails, wrote incorrectly to a few....sorry!
> The fusible link, as shipped by Carlsen, is, indeed, a
> 30 amp link.  Has anybody actually measured the
> steady-state current consumption of the motor at the
> various speeds?  I have to admit, even though there
> are lots of references to 70 amps worth of fusible
> link, that smacks of downright dangerous engineering -
> the wiring for the fan motor includes some fairly long
> runs of 10 gauge wire, which would certainly catch
> fire at a steady 70 amps.
> So the current trouble is this: the fusible link
> fitment box came without screws.  I'm sure they have
> to be some sort of brass metric screw.  Anybody have
> an idea what size they are and where I can mail order
> them without having to spend yet more of my employer's
> long distance money during working hours?  Or maybe an
> Audi PN, so I can try to get the local VW dealer (I'm
> 120 miles from the nearest interested Audi dealer) to
> get some for me?
> I guess I'll keep plugging away at this until it's
> done.  This repair started August 13th....
> TIA!
> Dave
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