Solar Atmospheres in Souderton, Pa, has had an automatic disconnect switch installed into a production car bottom vacuum furnace. The switch saves time by eliminating the manual maneuver of disconnecting and then re-connecting the power terminal bars at each end of the car bottom during each production run.
The switch, from Solar Manufacturing, Inc., is rated for 1,000 amps, 50V AC per pole, and the switches are installed at each end of the hot zone. Not only have the disconnect switches performed as well as expected since installation at Solar Atmospheres Souderton, PA, location, but they also have improved production.
