The contactor does not have an electrical equipment energy storage device

What are contactors used for?

Contactors are electrical components used to switch an electrical circuit on and off. They are used for a number of different applications in electrical circuits and systems. While they can be easily confused with relays, this article will discuss why they are different and much more.

How do a relay and a contactor differ?

A contactor joins 2 poles together without a common between the phases, while a relay uses a common contact that connects to a neutral. Additionally, contactors are generally rated up to 1000V and relays up to 250V. Relays are typically used for applications that carry 10A or less.

Can you give an example of a contactor?

An example of a contactor's use is supplying power to an electrical motor. Electrical motors produce arcs when they are interrupted, which can be controlled and reduced in number using a contactor. This makes contactors a safe and easily mountable solution for control panels and circuits.

Do contactors and relays qualify for safety circuits?

The only requirement for contactors and relays to qualify for safety circuits is the mechanically linked performance of the contacts, which both the CA7/CS7 and CAS7/CSS7 contactors and relays meet. The entire CA7 and CS7 lines feature mechanically linked contacts, sometimes referred to as “positively-guided contacts” or “force-guided contacts”.

What is the enclosure of a contactor?

The enclosure of a contactor provides a form of insulation and protection, ensuring that personnel will not come into contact with the contacts or coil. Generally, the enclosure is made from plastic such as polycarbonate.

What makes each type of contactor unique?

Each different type of contactor features its own features, different capabilities and are used for specific applications. The working principle of each contactor is almost the same with some minor differences.