AVR-Chat

On Mar 18, 2008, at 11:59 AM, Sander Pool wrote:

> I'm no expert but looking at Ohms law I think it's safe to say that  
> the
> current rating is voltage independent. After all the resistance of the
> switch is more or less constant as is the power dissipation capacity.


Yes, an amp is an amp no matter the voltage. Same for switches as for  
wires. The conductor determines the current capacity while insulation  
determines the voltage rating.

AC voltage ratings are higher than DC because its alternating. Any arc  
struck when the switch is changing will end in the next half cycle or  
cycle. Most any switch or relay will spark when switched near its max  
ratings.

--
David Kelly N4HHE, dkelly@HiWAAY.net
============================================================
Whom computers would destroy, they must first drive mad.