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Re: Europa-List: Technical question - master switch

Subject: Re: Europa-List: Technical question - master switch
From: Jeff B <topglock@cox.net>
Date: Sun, 11 Dec 2005 14:12:55

Richanr,

Don't know how much bandwidth you'll generate, but I have the same 
switch in N55XS and it's wired direct to the battery and other and other 
busses.  Never a hint at a problem.  Use it with confidence...

Jeff - N55XS
117 hours

Richard Holder wrote:
> 
> Hi Team - a question for you to ponder
> 
> As a part of my plan to redo my panel I have
> bought a "Cessna Split Master switch" red, as per Cessnas
> and Pipers.
> 
> I was wondering whether anyone who has used one has any
> commments about their reliability, and whether or not
> relays were used.
> 
> I say that because in the Cessna application the battery
> side operates a relay (< 1 amp) and the alt side switches
> the field windings of the alternator (max 2 - 3 amps)
> 
> If this switch is used on the Europa (Rotax) to switch the
> full flowing current (max 19 amps for the alt and maybe as
> much as 25 for the battery) but is only designed for 2 or
> 3 it is likely to fail. Unless of course it is
> over-engineered !
> 
> I have seen this switch in some Europas but I have no idea
> whether they use relays. (To be honest I am not sure that
> the alt side can be relayed anyway).
> 
> All your thoughts would be much appreciated. My existing
> battery and alt switches are two pole toggle switches,
> with a 15 amp capacity on each pole, wired in parallel.
> 
> Hope this generates some bandwidth !
> 
> TIA
> 
> Richard
> 
> 
> 
> 
> 
> 
> 



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