What are relays and contractors?

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 purpose of contactors?

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.

What is the purpose of relay?

Relays are electric switches that use electromagnetism to convert small electrical stimuli into larger currents. These conversions occur when electrical inputs activate electromagnets to either form or break existing circuits.

What are the different types of contactors?

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.

Where are contactors used?

What is the function of a relay and contactor?

The primary function of a relay is signal detection, transmission, conversion, or disposal. Its on-off circuit current is generally small, and it is generally used in control circuits to control weak signals. The primary function of the contactor is to connect or disconnect the main circuit.

What are the safety features in relays and contactors?

The safety features in relays and contactors are different as per the power of each device. Spring-loaded contacts are used to ensure that the circuit is tripped or opened in case of any over-circuit condition to reduce or prevent damage to electrical devices.

What is the current carrying task of contactor?

The current carrying task of the contactor is done by the contacts. There are different types of contacts in a contactor namely, contact springs, auxiliary contacts, and power contacts. Each type of contact has an individual role to play.

What is a relay?

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.