A contactor is a special type of relay used for switching an electrical circuit on or off. They are most commonly used with electric motors and lighting applications.
What is a contactor and how does it work?
A contactor is an electromechanical switch whose function is to make or break the connection between the power supply and the load. The contactor is electrically controlled and usually powered at a much lower level than the switched circuit.
What is the difference between a relay and a contactor?
A contactor joins 2 poles together, without a common circuit between them, while a relay has a common contact that connects to a neutral position. Additionally, contactors are commonly rated for up to 1000V, while relays are usually rated to only 250V.
What is contactor and types?
A contactor is an electrical device which is used for switching an electrical circuit on or off. It is considered to be a special type of relay. Contactors can be field mounted easily and are compact in size. Generally, these electrical devices feature multiple contacts.
How many types of contactors are there?
There are two types of power contact; stationary contact and movable contact. The material used for the contacts has stable arc resistance and high welding resistance.
What is the meaning of contactor?
A contactor is an electrical device which is used for switching an electrical circuit on or off. These contacts are in most cases normally open and provide operating power to the load when the contactor coil is energized. Contactors are most commonly used for controlling electric motors.
What is the purpose of contactor or relay?
Summary. A contactor is a special type of relay used for switching an electrical circuit on or off. They are most commonly used with electric motors and lighting applications.