Relays And Contactors

A contactor is an electrically operated switch which is designed to make or break the electrical power circuits. There are many different contactors: auxiliary contactors, power contactors, and spring-loaded contactors; two are continuous power contactors: stationary and movable contactors. A relay is an electromagnetic switch that is designed to operate electrically and used for switching the circuits by using low power signals. Types of relay : Electromagnetic relay. Electromagnetic relay is the simplest, oldest and most widely used relay. …Latching relay. …Thermal relay. …Reed relay. …High voltage relay. …Time Relay. …Current and voltage relay. …Differential relay.