What is the meaning of a contactor?

Definition of contactor : a device for repeatedly establishing and interrupting an electric power circuit under normal conditions.

What is the difference between contactor?

Relays are used to control contacts of an electrical circuit due to a change of parameters or conditions in the same circuit or any other associated circuit. Contactors, on the other hand, are used to interrupt or establish connections in an electrical circuit repeatedly under different conditions.

What is the main function of contactor?

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.

What is different between contactor and relay?

Control Relay: It is a device through which contacts in one circuit are operated by an alteration in conditions in the same circuit or in associated circuits. Contactor: It is a device which is used for repeatedly establishing and interrupting an electric circuit under normal conditions.

When would you use a contactor?

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 difference between relay and contactor?

What is the difference between AC contactor and DC contactor?

The primary difference lies in the construction of the contactors. The AC contactor contains a grid arc extinguishing device as opposed to the DC contactor, which has a magnetic arc extinguishing device. The DC contactors can, therefore, be made out of complete cast steel or iron.

How do I choose a contactor?

Power contactors have 3 poles or 4 poles versions. You should select the suitable contactor according to the number of phases of the load. For example, if you want to control a 3 phase motor, you should use 3 pole contactor. If you want to disconnect the neutral, your choice should be 4 pole version.

What is difference between contactor and circuit breaker?

The main difference between electrical contactor and circuit breaker is, a contactor is an electrically controlled switch that makes contact to connect the load with the power supply whereas a circuit breaker is an electrical protective device that breaks contacts to disconnect the load from the power supply during a …

What are the different types of contactors?

types of contactor. contactor telemecanique contactor, magnetic contactor, siemens contactor mitsubishi magnetic contactor, single pole contactor , 2 pole contactor schneider contactor, telemecanique magnetic contactor, 4 pole contactor 3 pole contactor , schneider electric contactors , fuji magnetic contactor ac magnetic contactor etc.

What is the difference between contactors and starters?

Main Difference between contactor and Starter. The magnetic starter is very similar to the magnetic contactor in design and operation. Both have the feature of operating contacts when the coil is energized. The important difference between contactors and starters is the use of overload heater element in the starter.

What are the three major parts of a contactor or relay?

A magnetic contactor is a relay-controlled switch used to turn a power control circuit on and off. It is electrically controlled and uses less power than other circuits. A magnetic contactor comes in different forms and capacities. A magnetic contactor has three parts: power contacts, contact springs and auxiliary contacts.

What are the functions of a contactor?

The function of a contactor or motor starter is simple, when the AC supply goes to the contactor coil, the coil make a strong magnetic field and field pulls the iron core to the coil and make a electrical contacts.