How Magnetic Switches Work
How Magnetic Switches Work First developed in the 1930s, magnetic switches work similar to relays, closing an electrical contact in the presence of a magnetic field. Unlike relays, magnetic switches are sealed in glass. Advantages of magnetic switches over traditional relays include lower contact resistance, faster switching speed and longer life. Because they are sealed, magnetic switches eliminate sparking hazards in flammable or explosive environments. Description Action Capacity Magnetic Proximity |