nuckollsr(at)cox.net Guest
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Posted: Fri Feb 23, 2007 5:38 am Post subject: Contactor arc suppression diodes? |
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Quote: | Comments/Questions: I am building an RV-6A I bought my master cantacter
and starter relay from VANS Aircraft. I have read several of the posts on
your website and I am confused about the diode that should go across the
contactor coils,
I want to use plan Z13-8, I have two P-Mags.
1 Should a resister be in series with the diode?
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No . . .
Quote: | 2 If so what value and wattage ?
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N/a
Quote: | 3 What is the best diode to use?
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Anything you can find is electrically adequate.
My personal favorites are the 1N5400 series
devices. While electrically super-robust to
the task, you can get them locally at Radio
Shack. See
http://www.radioshack.com/product/index.jsp?productId 62577&cp
These are two in a package for $1.39
They are pictured in the various applications
shown here:
http://www.aeroelectric.com/Pictures/Contactors/s701-1.jpg
http://www.aeroelectric.com/Pictures/Contactors/s701-2.jpg
I favor them for their mechanical robustness
and ease of installation compared to the smaller
devices.
Bob . . .
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( IF one wishes to be "world class" at )
( anything, what ever you do must be )
( exercised EVERY day . . . )
( R. L. Nuckolls III )
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