Thanks Bob and Tom. Good info. I think the MOV should be 200-230v for a 120v AC line though... (176v RMS) ;) -Skip Bob Axtell wrote: > You might want to do the cap with protective resistor AND an MOV. Rate > the MOV at150-160V. > In general, it is difficult to prevent excessive contact wear. > Mercury-wetted relays outlast others > I understand. Sometimes the relay doesn't holdup well under such heavy loads. > > --Bob A -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist