On Tue, 22 Jul 2008 22:29:46 -0400, with neither quill nor qualm, Bob
Engelhardt quickly quoth:

I'm in the process of modifying an electric clothes dryer. I want to
switch 21A, 240v current, but I don't have, and can't find, a switch
with that capacity.

But, as I understand it, switches are rated for the current that they
can *break*. My application will never require the switch to break the
current - that will be done by the dryer's timer.

Also, in a closed-contact situation, I'm thinking that paralleling 2
sets of contacts will double (more or less) the current capacity.

So, if I use a 2 pole 15A rated switch, parallel its poles, & never
break the current with it, could it carry 21A?

Why not use a smaller switch to run the dryer through a 240V relay?

--
Imagination is more important than knowledge...
Albert Einstein (1879 - 1955)