Contactor

A contactor is an electrical device that is used for controlling an electrical circuit by establishing and interrupting the electrical connection. It is used to control the power flow to different parts of a machine or equipment.

A contactor works by using an electromagnetic coil to create a magnetic field. This magnetic field attracts a moving part called the armature, which is connected to a set of contacts. When the armature is attracted, the contacts close and complete the circuit, allowing current to flow. When the electromagnetic coil is turned off, the magnetic field disappears, and the armature returns to its original position, opening the contacts and interrupting the circuit.

Contactors are commonly used in a wide range of industrial and commercial applications, including manufacturing equipment, elevators, HVAC systems, lighting controls, and motor controls. They are also used in many household appliances such as air conditioners, refrigerators, and washing machines. Contactors are essential in controlling electrical power in many types of equipment and machinery.