Original poster: "by way of Terry Fritz <teslalist@qwest.net>" <Mddeming@aol.com> Hi All, www.cpisurplus.com has a 100 Amp Contactor w/24v AC/DC coil made by Fuji, item no.O7C10-INC2FO#SC-5N/UL for $26.50 + S&H. Might be useful for a large TC power supply. They have dozens of others in different ratings/price ranges. FYI only, I have no financial interest in this. Matt D.