Bill....
It shouldn't make any difference if your saw is 220 v, 110 v or even 440 v. The paddle just depresses the STOP switch. It is the same switch that came on my saw (which by the way is 110 v) I just used a piece of plywood and a section of piano hinge and screwed it to the rail on the saw.
Chuck....
The switch is one that came on my saw. It is just a simple push button switch, with a green start button and a red stop that sticks out a bit further than the face of the switch. Then can be purchased after market at Rockler's or other wood working stores or even at an electrical supply place. In fact, I would probably start my search at an Ace hardware store! I'm sure it could be attached to your saw and wired up with out much problem.
pddesertrat.....
I don't have a splitter on my saw either. I know that they are recommended and are a good safety device and have considered getting one. Most of them are mounted on the blade insert and I make my own "0 clearance" inserts and it just seems to be too much trouble to put one on.
I have about eight different inserts that I change out quite often. I have the "stock" insert that came with the saw ( that I seldom use unless I'm cutting an odd angle between 0 and 45 degrees), I have a 0 clearance for both a standard 1/8" blade and the thin kerf blade, I have two for (one each) for the dado sets, two for the box joint blade set (one for 1/4" and one for the 3/8") and one that is dedicated to 45 degree cuts. Not all of those even need a splitter anyway.
Rog