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1. 10:34 PM - Switch Ratings Conversion (AC to DC) for ST23N Toggle Switches (Dan Jones)
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| Subject: | Switch Ratings Conversion (AC to DC) for ST23N Toggle |
Switches
Hi Bob,
I just finished reading your article "Switch Ratings, What's it all
Mean?" and Chapter 11 of THE BOOK but I can't quite decipher the data
for some switches I would like to use. I have some old (but mint
condition) ST23N switches salvaged from a DC-3 audio box that was almost
certainly a 28 volt airplane. I want to use them in a 14 volt Stearman
restoration. I like them because they have a nice heavy feel, they're
made in the USA, and they're from an era when people made stuff to work
and to last. They also look nice and "period". Gleaned off the
internet I have the switche's max rating of 250 VAC, and the contact
load current rating at max rated voltage of 2.0 amps inductive AC, and
5.0 amps resistive. My running of the numbers and adding a fudge factor
into it makes me think that 30 amps inductive and 75 amps resistive at
14 volts isn't out of line. Or am I talking out of my butt?
Dan
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