Normally closed (NC)<\/li>\n<\/ul>\n\n\n\nThe coil connects to a low-power source, triggering the relay’s switching mechanism. The common terminal links to the controlled circuit’s output. NO terminals remain open until the relay activates, while NC terminals are closed until activation.<\/p>\n\n\n\n
Relays operate through electromagnetic induction. When the coil is energized, it creates a magnetic field that attracts the contact, completing the circuit and controlling the load. This mechanism allows relays to operate various devices safely and efficiently.<\/p>\n\n\n\n
Electrical Relay Contact Types<\/p>\n\n\n\n