In most cases, I've seen MOV's just line to line But in doing some research, I've also seen in mentioned that for full protection, you want to place a MOV from hot to neutral/return (line to line), hot to chassis gnd and return/neutral to chassis gnd Any comments? _________________________________________________________________ Learn how to choose, serve, and enjoy wine at Wine @ MSN. http://wine.msn.com/ -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu