Re: [T3] Starter Woes

["Jim Adney" <jadney@vwtype3.org>]

On 6 Jun 00, at 11:34, Henrik Larsson wrote:

> Isn't that a lot of current? I've heard that you could use a Karmann
> Ghia horn relay to save the ignition switch, but no horn could ever
> draw 30 amps. Isn't there a risk of frying the relay?

If 30 Amps is the pull-in current then (in normal operation) 30 Amps 
would flow thru the switch/relay for only 0.1 sec or so, then there 
would only be the hold current which is probably 3-5 Amps. This is 
the only current that the relay/switch would have to break. Since 
the hardest part of this job comes when it's time to break the 
circuit this is a lot easier than it sounds. Still the parts have to be 
made beefy enough to handle 30 amps briefly.

For a 12 V system, the currents are half these numbers. Has 
anyone else heard about the automaker's plans to go to a 42 V 
system? John? Can anyone tell me why such an "odd" number 
was chosen?


> Russell Wolfe wrote:
> 
> > I can't find the sheet I was looking for, but the one I did find for
> > 6v shows that it has a 30 amp pull in current.
> 
> -------------------------------------------------------------------
> Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe
> 


-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054