There are different types of contacts in a contactor, and they are; auxiliary contact, power contact, and contact spring. The power contact has two types that are; stationary and movable contact.

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.

Relays are generally classified as carrying loads of 10A or less, while a contactor would be used for loads greater than 10A, but this definition, while simple, gives an incomplete picture. It leaves out any physical differences, or standards.

A contactor is an electrically-controlled switch used for switching an electrical power circuit. A contactor is typically controlled by a circuit which has a much lower power level than the switched circuit, such as a 24-volt coil electromagnet controlling a 230-volt motor switch.

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.

While a relay does add an extra step to the switching process, the main advantage is that you can leave the actual switching of high-power circuits for things like off-road lights or air compressors in the engine compartment, and control that switching with a much smaller amperage circuit that energizes the relay’s …

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.

There are different types of contacts in a contactor, and they are; auxiliary contact, power contact, and contact spring. The power contact has two types that are; stationary and movable contact. Material for making contacts must have a high welding resistance and stable arc resistance.

What is the difference between contactor and relay? Load capacity. Relays are used for low power output applications up to 10A, Whereas Contactors are used for large power output greater than 10A. Application. Relays are used mostly for single-phase Applications Contactors are used for three-phase Applications such as motor starters. Voltage. Size and Cost. Switching Speed. Power Consumption.

Contactors and relays are used on almost all heating, cooling, and refrigeration equipment for the operation of loads in the system . Contactors relays are similar in their operation because both contain a coil that is used to open or close the contacts.

There are three major parts of a contactor or relay: the coil, mechanical linkage and contacts. The coil is used to create a magnetic field and is rated based on voltage (24 V, 120 V, 208/204 V, 480 V). The mechanical linkage connects the armature to the contacts when the coil is energized, completing the circuit.

One-third less footprint and clearance requirements