Magnetic Switch, Mount: Surface, 100V AC/DC, Contact: Normally Open. Height: 2-17/32", Width: 17/32" W, Depth: 11/16", Color: White. Edwards magnetic switches are designed to activate a variety of signaling devices. Normally open circuits close when the magnet engages. SPDT switches are for open circuit systems and/or closed circuit systems. Normally closed circuits open when the magnet engages. For accessories, see Magnetic Switch Accessories. Used for commercial, industrial, and...